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måndag 26 november 2018

E3 ubikitiiniligaasi sokeriaineenaihdunnasta

 F(1,6) bifosfataasin entsymin hajoittaa  u´E3 ubikitiiniligaasi, joka hajoaa myös itse proteosomilla.



Muut E3 ubikitiiniligaasit
  •  HiilihydraattiaineenvaihduntaHiivassa:
Mol Biol Cell. 2008 Aug; 19(8): 3323–3333.
PMCID: PMC2488282
PMID: 18508925
The Yeast GID Complex, a Novel Ubiquitin Ligase (E3) Involved in the Regulation of Carbohydrate Metabolism

Thomas Sommer, Monitoring Editor

The Gid complex, a novel ubiquitin ligase (E3) required for the degradation of the key gluconeogenic enzyme fructose-1,6-bisphosphatase. The Gid complex binds to FBPase, when S. cerevisiae cells are growing on an ethanol-containing medium. On shift of cells to glucose, Gid4/Vid24 occurs and activates the complex, which then polyubiquitinates FBPase before its degradation by the proteasome. Gid4/Vid24 is itself degraded by the proteasome.

PEPCK, another gluconeogenic enzyme, is also subject to catabolite degradation (Holzer, 1976 ; Muller et al., 1981 ). As Figure 7 shows, it is stabilized in GID2/RMD5 and GID4/VID24 deleted cells. Thus, Gid complex-dependent degradation is not restricted to FBPase but plays a more general role within the regulation of carbohydrate metabolism.
Gid protein homologues were also found to form a complex in mammals (Kobayashi et al., 2007 ). Although no function for this CTLH complex has been described, one subunit has been implicated in proteasomal degradation of α-catenin (Suzuki et al., 2008 ). This suggests that the CTLH complex, like the Gid complex, might also bear E3 activity.
In conclusion (Figure 8), our study shows that the Gid complex is a new ubiquitin ligase with novel types of subunits involved in catabolite degradation of gluconeogenic enzymes in yeast. We also identify Vid24/Gid4 as an important regulator of its ubiquitin ligase activity.

ENTÄ tämän E3 ubikitiiniligaasihomologin  tehtävät ihmisessä?

Löytyy kaksi geeniä
RMD5A, GID2A, CTLH , Kr. 2 required for meiotic division
RMD5B, GID2B, kr.5
required ofr meiotic nuclear division
Katson näistä  enemmän tietoa  onko niillä  yhteyttä sokeriaineenvaihduntaan kuten hiivassa, josa se hajoitaa fruktoosi1,6,-bifosfaataasia.



Fruktoosi-1,6-bifosfataasi

https://sv.wikipedia.org/wiki/Fruktos-1,6-bisfosfatas

Fruktos-1,6-bisfosfatas

Fruktos-1,6-bisfosfatas-oktamer, sulfolobus tokodaii.
Fruktos-1,6-bisfosfatas är ett enzym som ingår i glukoneogenesen och därmed också i coricykeln. Det katalyserar defosforyleringen av fruktos-1,6-bisfosfat till fruktos-6-fosfat. Det aktiveras av höga nivåer av ATP i sin omgivande miljö, men utnyttjar inte något ATP för att kunna drivas. Enzymet arbetar vid motsatt intracellulär miljö än dess motsvarande enzym i glykolysen, fosfofruktokinas.

 Suomi:
 Fruktoosi-1,6-bisfosfataasi on entsyymi, joka katalysoi fruktoosi-1,6-bisfosfaatin hydrolyysiä fruktoosi-6-fosfaatiksi glukoneogeneesissä. Entsyymi on tärkeä glukoneogeneesin säätelykohta.[1] Fruktoosi-1,6-bisfosfataasin EC-numero on EC 3.1.3.11.[2] Eläimillä fruktoosi-1,6-bisfosfataasia esiintyy maksassa ja munuaisissa
  1. Ihmisen fruktoosi-1,6-bisfosfataasi on rakenteeltaan tetrameeri. Eräillä kasveilla, kuten herneellä se on monomeeri ja eräillä bakteereilla, kuten Escherichia colilla se on rakenteeltaan monomeeri. Toimiakseen entsyymi tarvitsee koentsyymikseen Mg2+-ionin tai Mn2+-ionin.[2]
    Fruktoosi-1,6-bisfosfataasin katalysoiman reaktion mekanismista ei ole täyttä varmuutta ja esitettyjä mekanismeja on kaksi: dissosiatiivinen ja assosiatiivinen mekanismi. Assosiatiivisessa mekanismissa vesimolekyyli hyökkää entsyymin katalysoimana fruktoosi-1,6-bisfosfaatin 1-asemassa sijaitsevan fosfaattiryhmän fosforiatomiin ja fosfaattiryhmä poistuu vetyfosfaatti-ionina ja entsyymin aktiivisen keskuksen asparagiinihappo luovuttaa protonin, jolloin muodostuu hydroksyyliryhmä ja fruktoosi-6-fosfaatti vapautuu. Dissosiatiivisessa mekanismissa hyökkäys tapahtuu fosfaattiesteriryhmän happeen, jolloin alkoholiryhmä vapautuu ja seuraavassa vaiheessa fosfaatti-ionista muodostuu vetyfosfaatti. Myös tässä mekanismissa asparagiinihappo on tärkeässä osassa. Krystallografiset tutkimukset tukevat kumpaakin mekanismia.[3]
    Kun solujen energiavarastot ovat vähäiset, on soluissa paljon AMP:tä, joka on fruktoosi-1,6-fosfataasin inhibiittori. Tällöin entsyymin toiminta estyy.
    ATP sen sijaan aktivoi fruktoosi-1,6-bisfosfataasia.
     Fruktoosi-2,6-bisfosfaatti on voimakas entsyymin allosteerinen inhibiittori. Fruktoosi-2,6-bisfosfaatin määrä riippuu veren glukagonipitoisuudesta.
    ATP:n lisäksi myös sitraatti-ioni aktivoi fruktoosi-1,6-bisfosfataasia.[1][4]
    Fruktoosi-1,6-bisfosfataasin puutos on harvinainen autosomien välityksellä resessiivisesti periytyvä sairaus.
     Entsyymin puutos aiheuttaa laktista asidoosia ja hypoglykemiaa. Pienillä lapsina tämä ilmenee muun muassa hyperventiloimisena, ärtyisyytenä, unettomuutena ja lihasten heikkoutena. Hoitona on suun kautta tai suonensisäisesti annettava glukoosi ja asidoosin hoitoon vetykarbonaattiliuos.[5]
    Lähteet
  2. Jeremy M. Berg, John L. Tymoczko & Lubert Stryer: Biochemistry, 6th Edition, s. 461, 466. W. H. Freeman and Company, 2006. ISBN 978-0-7167-8724-2. (englanniksi)
  3. EC 3.1.3.11 - fructose-bisphosphatase Brenda. Viitattu 29.08.2013. (englanniksi)
  4. John McMurry, Tadhg P. Begley: The organic chemistry of biological pathways, s. 20. Roberts and Company Publishers, 2005. ISBN 978-0974707716. Kirja Googlen teoshaussa (viitattu 29.08.2013). (englanniksi)
  5. Richard A Harvey,Denise R Ferrier: Lippincott's Illustrated Reviews: Biochemistry, s. 121. Lippincott Williams & Wilkins, 2010. ISBN 978-1-60831-412-6. Kirja Googlen teoshaussa. (englanniksi)
  6. John Fernandes: Inborn metabolic diseases: diagnosis and treatment, s. 528. Springer, 2006. ISBN 978-3540287834. Kirja Googlen teoshaussa (viitattu 29.08.2013). (englanniksi)
.

RMD5B, GID2B (5q35.3) E3 ubikitiiniligaasi, tärkeä tuman meioottiselle jaolle.

https://www.ncbi.nlm.nih.gov/gene
Preferred Names
E3 ubiquitin-protein transferase RMND5B; protein RMD5 homolog B
Names
GID complex subunit 2 homolog B

Related articles in PubMed

RMND5A, GID2A,Geenin normaalius on meiossissa ja hermostonkehitykselle tärkeä.

https://www.ncbi.nlm.nih.gov/gene/64795
Also known as
CTLH; GID2; RMD5; GID2A; p44CTLH
Expression
Ubiquitous expression in esophagus (RPKM 17.5), heart (RPKM 16.4) and 25 other tissues See more
Orthologs mouse
Preferred Names
E3 ubiquitin-protein transferase RMND5A
Names
44-kD protein coding for CTLH motif
C-terminal to LisH motif, 44 kDa
GID complex subunit 2 homolog A
protein RMD5 homolog A
NP_073617.1

Related articles in PubMed

  1. NM_022780.4NP_073617.1  E3 ubiquitin-protein transferase RMND5A
    See identical proteins and their annotated locations for NP_073617.1
    Status: VALIDATED
    Source sequence(s)
    AC064848, AK023972, BC012165, BC047668, BU620245
    Consensus CDS
    CCDS1991.1
    UniProtKB/Swiss-Prot
    Q9H871
    Related
    ENSP00000283632.4, OTTHUMP00000160759, ENST00000283632.4
    Conserved Domains (3) summary
    smart00667
    Location:114146
    LisH; Lissencephaly type-1-like homology motif
    pfam10607
    Location:153297
    CLTH; CTLH/CRA C-terminal to LisH motif domain
    cd16794
    Location:333381
    dRING_RMD5A; Degenerated RING finger found in protein RMD5 homolo

E3 ubiquitin-protein transferase RMND5A [Homo sapiens]

NCBI Reference Sequence: NP_073617.1
LOCUS       NP_073617                391 aa            linear   PRI 23-NOV-2018
DEFINITION  E3 ubiquitin-protein transferase RMND5A [Homo sapiens].
ACCESSION   NP_073617
VERSION     NP_073617.1
DBSOURCE    REFSEQ: accession NM_022780.4
KEYWORDS    RefSeq.
SOURCE      Homo sapiens (human)
  ORGANISM  Homo sapiens
            Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
            Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini;
            Catarrhini; Hominidae; Homo.
REFERENCE   1  (residues 1 to 391)
  AUTHORS   Lampert F, Stafa D, Goga A, Soste MV, Gilberto S, Olieric N,
            Picotti P, Stoffel M and Peter M.
  TITLE     The multi-subunit GID/CTLH E3 ubiquitin ligase promotes cell
            proliferation and targets the transcription factor Hbp1 for
            degradation
  JOURNAL   Elife 7, e35528 (2018)
   PUBMED   29911972
  REMARK    Publication Status: Online-Only
REFERENCE   2  (residues 1 to 391)
  AUTHORS   Boldt K, van Reeuwijk J, Lu Q, Koutroumpas K, Nguyen TM, Texier Y,
            van Beersum SE, Horn N, Willer JR, Mans DA, Dougherty G, Lamers IJ,
            Coene KL, Arts HH, Betts MJ, Beyer T, Bolat E, Gloeckner CJ,
            Haidari K, Hetterschijt L, Iaconis D, Jenkins D, Klose F, Knapp B,
            Latour B, Letteboer SJ, Marcelis CL, Mitic D, Morleo M, Oud MM,
            Riemersma M, Rix S, Terhal PA, Toedt G, van Dam TJ, de Vrieze E,
            Wissinger Y, Wu KM, Apic G, Beales PL, Blacque OE, Gibson TJ,
            Huynen MA, Katsanis N, Kremer H, Omran H, van Wijk E, Wolfrum U,
            Kepes F, Davis EE, Franco B, Giles RH, Ueffing M, Russell RB and
            Roepman R.
  CONSRTM   UK10K Rare Diseases Group
  TITLE     An organelle-specific protein landscape identifies novel diseases
            and molecular mechanisms
  JOURNAL   Nat Commun 7, 11491 (2016)
   PUBMED   27173435
  REMARK    Publication Status: Online-Only
REFERENCE   3  (residues 1 to 391)
  AUTHORS   Li J, Chen Y, Qin X, Wen J, Ding H, Xia W, Li S, Su X, Wang W, Li
            H, Zhao Q, Fang T, Qu L and Shao N.
  TITLE     MiR-138 downregulates miRNA processing in HeLa cells by targeting
            RMND5A and decreasing Exportin-5 stability
  JOURNAL   Nucleic Acids Res. 42 (1), 458-474 (2014)
   PUBMED   24057215
  REMARK    GeneRIF: The study identifies a miR-138-RMND5A-Exportin-5 as a
            previously unknown miRNA processing regulatory pathway in HeLa
            cells.
REFERENCE   4  (residues 1 to 391)
  AUTHORS   Francis O, Han F and Adams JC.
  TITLE     Molecular phylogeny of a RING E3 ubiquitin ligase, conserved in
            eukaryotic cells and dominated by homologous components, the
            muskelin/RanBPM/CTLH complex
  JOURNAL   PLoS ONE 8 (10), e75217 (2013)
   PUBMED   24143168
  REMARK    Erratum:[PLoS One. 2013 Nov 8;8(11):null. PMID: 29161723]
            Publication Status: Online-Only
REFERENCE   5  (residues 1 to 391)
  AUTHORS   Vogel TW, Manjila S and Cohen AR.
  TITLE     Novel neurodevelopmental disorder in the case of a giant
            occipitoparietal meningoencephalocele
  JOURNAL   J Neurosurg Pediatr 10 (1), 25-29 (2012)
   PUBMED   22681319
  REMARK    GeneRIF: Duplications of this region involving RMND5A, whose
            product contains a C-terminal to lis homology (LisH) domain, have
            not previously been associated with a defined phenotype but may
            present insight into encephalocele formation.
REFERENCE   6  (residues 1 to 391)
  AUTHORS   Kobayashi N, Yang J, Ueda A, Suzuki T, Tomaru K, Takeno M, Okuda K
            and Ishigatsubo Y.
  TITLE     RanBPM, Muskelin, p48EMLP, p44CTLH, and the armadillo-repeat
            proteins ARMC8alpha and ARMC8beta are components of the CTLH
            complex
  JOURNAL   Gene 396 (2), 236-247 (2007)
   PUBMED   17467196
  REMARK    GeneRIF: RanBPM, ARMC8alpha, ARMC8beta, Muskelin, p48EMLP, and
            p44CTLH form complexes in cells.
REFERENCE   7  (residues 1 to 391)
  AUTHORS   Bowzard JB, Cheng D, Peng J and Kahn RA.
  TITLE     ELMOD2 is an Arl2 GTPase-activating protein that also acts on Arfs
  JOURNAL   J. Biol. Chem. 282 (24), 17568-17580 (2007)
   PUBMED   17452337
REFERENCE   8  (residues 1 to 391)
  AUTHORS   Colland F, Jacq X, Trouplin V, Mougin C, Groizeleau C, Hamburger A,
            Meil A, Wojcik J, Legrain P and Gauthier JM.
  TITLE     Functional proteomics mapping of a human signaling pathway
  JOURNAL   Genome Res. 14 (7), 1324-1332 (2004)
   PUBMED   15231748
COMMENT     VALIDATED REFSEQ: This record has undergone validation or
            preliminary review. The reference sequence was derived from
            AK023972.1, BC047668.1, BC012165.1, AC064848.5 and BU620245.1.
            
            Sequence Note: The RefSeq transcript and protein were derived from
            transcript and genomic sequence to make the sequence consistent
            with the reference genome assembly. The genomic coordinates used
            for the transcript record were based on alignments.
            
            ##Evidence-Data-START##
            Transcript exon combination :: SRR1803616.90910.1,
                                           SRR1660805.158266.1 [ECO:0000332]
            RNAseq introns              :: single sample supports all introns
                                           SAMEA1965299, SAMEA1966682
                                           [ECO:0000348]
            ##Evidence-Data-END##
FEATURES             Location/Qualifiers
     source          1..391
                     /organism="Homo sapiens"
                     /db_xref="taxon:9606"
                     /chromosome="2"
                     /map="2p11.2"
     Protein         1..391
                     /product="E3 ubiquitin-protein transferase RMND5A"
                     /EC_number="2.3.2.27"
                     /note="C-terminal to LisH motif, 44 kDa; protein RMD5
                     homolog A; GID complex subunit 2 homolog A; 44-kD protein
                     coding for CTLH motif"
                     /calculated_mol_wt=43862
     Site            1
                     /site_type="other"
                     /experiment="experimental evidence, no additional details
                     recorded"
                     /note="N-acetylmethionine. {ECO:0000244|PubMed:22814378};
                     propagated from UniProtKB/Swiss-Prot (Q9H871.1)"
     Region          114..146
                     /region_name="LisH"
                     /note="Lissencephaly type-1-like homology motif;
                     smart00667"
                     /db_xref="CDD:128913"
     Region          153..297
                     /region_name="CLTH"
                     /note="CTLH/CRA C-terminal to LisH motif domain;
                     pfam10607"
                     /db_xref="CDD:313761"
     Region          333..381
                     /region_name="dRING_RMD5A"
                     /note="Degenerated RING finger found in protein RMD5
                     homolog A (RMD5A); cd16794"
                     /db_xref="CDD:319708"
     Region          336..377
                     /region_name="degenerated RING finger"
                     /note="degenerated RING finger [structural motif]"
                     /db_xref="CDD:319708"
     CDS             1..391
                     /gene="RMND5A"
                     /gene_synonym="CTLH; GID2; GID2A; p44CTLH; RMD5"
                     /coded_by="NM_022780.4:378..1553"
                     /db_xref="CCDS:CCDS1991.1"
                     /db_xref="GeneID:64795"
                     /db_xref="HGNC:HGNC:25850"
ORIGIN      
        1 mdqcvtvere lekvlhkfsg ygqlcergle elidytgglk heilqshgqd aelsgtlslv
       61 ltqcckrikd tvqklasdhk dihssvsrvg kaidknfdsd issvgidgcw qadsqrllne
      121 vmvehffrqg mldvaeelcq esglsvdpsq kepfvelnri lealkvrvlr palewavsnr
      181 emliaqnssl efklhrlyfi sllmggttnq realqyaknf qpfalnhqkd iqvlmgslvy
      241 lrqgienspy vhlldanqwa dicdiftrda callglsves plsvsfsagc valpalinik
      301 avieqrqctg vwnqkdelpi evdlgkkcwy hsifacpilr qqttdnnppm klvcghiisr
      361 dalnkmfngs klkcpycpme qspgdakqif f
//
  1. (RMD5A)

GNPDA1 (5q31.3), oskilliini, glcN6P deaminaasi 1

https://www.ncbi.nlm.nih.gov/gene/10007

GPI; HLN; GNP1; GNPI; GNPDA
Summary
Glucosamine-6-phosphate deaminase (EC 3.5.99.6) is an allosteric enzyme that catalyzes the reversible conversion of D-glucosamine-6-phosphate into D-fructose-6-phosphate and ammonium (Arreola et al., 2003 [PubMed 12965206]).[supplied by OMIM, Jan 2010]

Preferred Names
glucosamine-6-phosphate isomerase 1
Names
GNPDA 1
glcN6P deaminase 1
oscillin

Related articles in PubMed

PubMed

GeneRIFs: Gene References Into FunctionsWhat's a GeneRIF?

peptidi rakenne, historia, struktuuri
Konservoitu domeeni
SugarP_isomerase: Sugar Phosphate Isomerase family; includes type A ribose 5-phosphate isomerase (RPI_A), glucosamine-6-phosphate (GlcN6P) deaminase, and 6-phosphogluconolactonase (6PGL). RPI catalyzes the reversible conversion of ribose-5-phosphate to ribulose 5-phosphate, the first step of the non-oxidative branch of the pentose phosphate pathway. GlcN6P deaminase catalyzes the reversible conversion of GlcN6P to D-fructose-6-phosphate (Fru6P) and ammonium, the last step of the metabolic pathway of N-acetyl-D-glucosamine-6-phosphate. 6PGL converts 6-phosphoglucono-1,5-lactone to 6-phosphogluconate, the second step of the oxidative phase of the pentose phosphate pathway.

glucosamine-6-phosphate isomerase 1 [Homo sapiens]

NCBI Reference Sequence: NP_005462.1
LOCUS       NP_005462                289 aa            linear   PRI 22-NOV-2018
DEFINITION  glucosamine-6-phosphate isomerase 1 [Homo sapiens].
ACCESSION   NP_005462
VERSION     NP_005462.1
DBSOURCE    REFSEQ: accession NM_005471.5
KEYWORDS    RefSeq.
SOURCE      Homo sapiens (human)
  ORGANISM  Homo sapiens
            Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
            Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini;
            Catarrhini; Hominidae; Homo.
REFERENCE   1  (residues 1 to 289)
  AUTHORS   Oikari S, Makkonen K, Deen AJ, Tyni I, Karna R, Tammi RH and Tammi
            MI.
  TITLE     Hexosamine biosynthesis in keratinocytes: roles of GFAT and GNPDA
            enzymes in the maintenance of UDP-GlcNAc content and hyaluronan
            synthesis
  JOURNAL   Glycobiology 26 (7), 710-722 (2016)
   PUBMED   26887390
  REMARK    GeneRIF: GNPDA1 siRNA induced GFAT2 which was hardly measurable in
            these cells under standard culture conditions, GNPDA2 siRNA
            increased GFAT1, and GFAT1 siRNA increased the expression of
            hyaluronan synthase 2 (HAS2). Silencing of GFAT1 stimulated GNPDA1
            and GDPDA2, and inhibited cell migration.
REFERENCE   2  (residues 1 to 289)
  AUTHORS   Alvarez-Anorve LI, Alonzo DA, Mora-Lugo R, Lara-Gonzalez S,
            Bustos-Jaimes I, Plumbridge J and Calcagno ML.
  TITLE     Allosteric kinetics of the isoform 1 of human
            glucosamine-6-phosphate deaminase
  JOURNAL   Biochim. Biophys. Acta 1814 (12), 1846-1853 (2011)
   PUBMED   21807125
  REMARK    GeneRIF: Allosteric kinetics of the isoform 1 of human
            glucosamine-6-phosphate deaminase.
REFERENCE   3  (residues 1 to 289)
  AUTHORS   Gonzalez-Begne M, Lu B, Han X, Hagen FK, Hand AR, Melvin JE and
            Yates JR.
  TITLE     Proteomic analysis of human parotid gland exosomes by
            multidimensional protein identification technology (MudPIT)
  JOURNAL   J. Proteome Res. 8 (3), 1304-1314 (2009)
   PUBMED   19199708
REFERENCE   4  (residues 1 to 289)
  AUTHORS   Gonzales PA, Pisitkun T, Hoffert JD, Tchapyjnikov D, Star RA, Kleta
            R, Wang NS and Knepper MA.
  TITLE     Large-scale proteomics and phosphoproteomics of urinary exosomes
  JOURNAL   J. Am. Soc. Nephrol. 20 (2), 363-379 (2009)
   PUBMED   19056867
REFERENCE   5  (residues 1 to 289)
  AUTHORS   Arreola R, Valderrama B, Morante ML and Horjales E.
  TITLE     Two mammalian glucosamine-6-phosphate deaminases: a structural and
            genetic study
  JOURNAL   FEBS Lett. 551 (1-3), 63-70 (2003)
   PUBMED   12965206
  REMARK    GeneRIF: Sequence analysis and crystallographic structure of GNP1.
REFERENCE   6  (residues 1 to 289)
  AUTHORS   Nakamura Y, Miura K, Fujino Y, Iwao H, Ogita S and Yamanaka S.
  TITLE     Evolution, structure, and expression of GNPI/Oscillin orthologous
            genes
  JOURNAL   Genomics 68 (2), 179-186 (2000)
   PUBMED   10964516
REFERENCE   7  (residues 1 to 289)
  AUTHORS   Shevchenko V, Hogben M, Ekong R, Parrington J and Lai FA.
  TITLE     The human glucosamine-6-phosphate deaminase gene: cDNA cloning and
            expression, genomic organization and chromosomal localization
  JOURNAL   Gene 216 (1), 31-38 (1998)
   PUBMED   9714720
REFERENCE   8  (residues 1 to 289)
  AUTHORS   Wolosker H, Kline D, Bian Y, Blackshaw S, Cameron AM, Fralich TJ,
            Schnaar RL and Snyder SH.
  TITLE     Molecularly cloned mammalian glucosamine-6-phosphate deaminase
            localizes to transporting epithelium and lacks oscillin activity
  JOURNAL   FASEB J. 12 (1), 91-99 (1998)
   PUBMED   9438414
REFERENCE   9  (residues 1 to 289)
  AUTHORS   Oliva G, Fontes MR, Garratt RC, Altamirano MM, Calcagno ML and
            Horjales E.
  TITLE     Structure and catalytic mechanism of glucosamine 6-phosphate
            deaminase from Escherichia coli at 2.1 A resolution
  JOURNAL   Structure 3 (12), 1323-1332 (1995)
   PUBMED   8747459
REFERENCE   10 (residues 1 to 289)
  AUTHORS   Weidanz JA, Campbell P, DeLucas LJ, Jin J, Moore D, Roden L, Yu H,
            Heilmann E and Vezza AC.
  TITLE     Glucosamine 6-phosphate deaminase in normal human erythrocytes
  JOURNAL   Br. J. Haematol. 91 (1), 72-79 (1995)
   PUBMED   7577655
COMMENT     VALIDATED REFSEQ: This record has undergone validation or
            preliminary review. The reference sequence was derived from
            BC022322.1, AC005740.1 and CA432951.1.
            
            Summary: Glucosamine-6-phosphate deaminase (EC 3.5.99.6) is an
            allosteric enzyme that catalyzes the reversible conversion of
            D-glucosamine-6-phosphate into D-fructose-6-phosphate and ammonium
            (Arreola et al., 2003 [PubMed 12965206]).[supplied by OMIM, Jan
            2010].
            
            Sequence Note: The RefSeq transcript and protein were derived from
            transcript and genomic sequence to make the sequence consistent
            with the reference genome assembly. The genomic coordinates used
            for the transcript record were based on alignments.
            
            Publication Note:  This RefSeq record includes a subset of the
            publications that are available for this gene. Please see the Gene
            record to access additional publications.
            
            ##Evidence-Data-START##
            Transcript exon combination :: SRR3476690.856559.1,
                                           SRR1660805.207409.1 [ECO:0000332]
            RNAseq introns              :: single sample supports all introns
                                           SAMEA1965299, SAMEA1966682
                                           [ECO:0000348]
            ##Evidence-Data-END##
FEATURES             Location/Qualifiers
     source          1..289
                     /organism="Homo sapiens"
                     /db_xref="taxon:9606"
                     /chromosome="5"
                     /map="5q31.3"
     Protein         1..289
                     /product="glucosamine-6-phosphate isomerase 1"
                     /EC_number="3.5.99.6"
                     /note="oscillin; GNPDA 1; glcN6P deaminase 1"
                     /calculated_mol_wt=32537
     Region          1..253
                     /region_name="SugarP_isomerase"
                     /note="SugarP_isomerase: Sugar Phosphate Isomerase family;
                     includes type A ribose 5-phosphate isomerase (RPI_A),
                     glucosamine-6-phosphate (GlcN6P) deaminase, and
                     6-phosphogluconolactonase (6PGL). RPI catalyzes the
                     reversible conversion of ribose-5-phosphate to...;
                     cl00339"
                     /db_xref="CDD:320918"
     Site            order(41..44,71..72,137..138,143,145,172,208)
                     /site_type="active"
                     /db_xref="CDD:238693"
     Site            64
                     /site_type="other"
                     /experiment="experimental evidence, no additional details
                     recorded"
                     /note="N6-acetyllysine. {ECO:0000244|PubMed:19608861};
                     propagated from UniProtKB/Swiss-Prot (P46926.1)"
     Site            order(150,152..153,161,216..222,230..232)
                     /site_type="other"
                     /note="trimer interface [polypeptide binding]"
                     /db_xref="CDD:238693"
     Site            order(151..152,158..161)
                     /site_type="other"
                     /note="allosteric site"
                     /db_xref="CDD:238693"
     Site            161
                     /site_type="other"
                     /experiment="experimental evidence, no additional details
                     recorded"
                     /note="Phosphothreonine. {ECO:0000250|UniProtKB:O88958};
                     propagated from UniProtKB/Swiss-Prot (P46926.1)"
     Site            order(163,166..176,180..182)
                     /site_type="active"
                     /note="active site lid [active]"
                     /db_xref="CDD:238693"
     Site            order(168,206,210,241,244..247)
                     /site_type="other"
                     /note="hexamer (dimer of trimers) interface [polypeptide
                     binding]"
                     /db_xref="CDD:238693"
     CDS             1..289
                     /gene="GNPDA1"
                     /gene_synonym="GNP1; GNPDA; GNPI; GPI; HLN"
                     /coded_by="NM_005471.5:40..909"
                     /db_xref="CCDS:CCDS4272.1"
                     /db_xref="GeneID:10007"
                     /db_xref="HGNC:HGNC:4417"
                     /db_xref="MIM:601798"
ORIGIN      
        1 mkliilehys qasewaakyi rnriiqfnpg pekyftlglp tgstplgcyk klieyykngd
       61 lsfkyvktfn mdeyvglprd hpesyhsfmw nnffkhidih penthildgn avdlqaecda
      121 feekikaagg ielfvggigp dghiafnepg sslvsrtrvk tlamdtilan arffdgeltk
      181 vptmaltvgv gtvmdarevm ilitgahkaf alykaieegv nhmwtvsafq qhprtvfvcd
      241 edatlelkvk tvkyfkglml vhnklvdply sikeketeks qsskkpysd
//
 

GFAT, GFAT2 (5q35.3)

GFAT entsyymi siirtää aminohaposta amidiryhmän typpeä fruktoosi-6- fosfaattiin , joka on muodsotunut glukoosi-6-fosfaatista  ( fosforyloituneesta soluun siirtyneestä verensokerista)
.nihhttps://www.ncbi.nlm.gov/gene/9945
Preferred Names
glutamine--fructose-6-phosphate aminotransferase [isomerizing] 2
Names
D-fructose-6-phosphate amidotransferase 2
glucosamine--fructose-6-phosphate aminotransferase [isomerizing] 2
glutamine: fructose-6-phosphate aminotransferase 2
glutamine:fructose-6-phosphate amidotransferase 2
hexosephosphate aminotransferase 2
 entsyymin konservoituneista domeeneista
(4) summary
PLN02981
Location:1682
PLN02981; glucosamine:fructose-6-phosphate aminotransferase
cd00714
Location:2285
GFAT; Glutamine amidotransferases class-II (Gn-AT)_GFAT-type. This domain is found at the N-terminus of glucosamine-6P synthase (GlmS, or GFAT in humans). The glutaminase domain catalyzes amide nitrogen transfer from glutamine to the appropriate substrate. In ...
cd05008
Location:369494
SIS_GlmS_GlmD_1; SIS (Sugar ISomerase) domain repeat 1 found in Glucosamine 6-phosphate synthase (GlmS) and Glucosamine-6-phosphate deaminase (GlmD). The SIS domain is found in many phosphosugar isomerases and phosphosugar binding proteins. GlmS contains a N-terminal ...
cd05009
Location:526680
SIS_GlmS_GlmD_2; SIS (Sugar ISomerase) domain repeat 2 found in Glucosamine 6-phosphate synthase (GlmS) and Glucosamine-6-phosphate deaminase (GlmD). The SIS domain is found in many phosphosugar isomerases and phosphosugar binding proteins. GlmS contains a N-terminal ...

Related articles in PubMed

GeneRIFs: Gene References Into Functions

 Entzyme history, structure, sequence.
 References.
Ref. 1. (2016)Hexosamine biosynthesis in keratinocytes: roles of GFAT and GNPDA
enzymes in the maintenance of UDP-GlcNAc content and hyaluronan
synthesis
GeneRIF: GNPDA1 siRNA induced GFAT2 which was hardly measurable in  these cells under standard culture conditions, 
GNPDA2 siRNA  increased GFAT1, and GFAT1 siRNA increased the expression of
hyaluronan synthase 2 (HAS2). Silencing of GFAT1 stimulated GNPDA1 and GDPDA2, and inhibited cell migration.
Ref. 2.(2016)  Widespread Expansion of Protein Interaction Capabilities by
Alternative Splicing
Ref. 3. (2011)  Genes linked to energy metabolism and immunoregulatory
mechanisms are associated with subcutaneous adipose tissue distribution in
HIV-infected men
Ref. 4. (2011)   TITLE     Genome-wide YFP fluorescence complementation
screen identifies new regulators for telomere signaling in human cells
Ref. 5.(2010) Hundreds of variants clustered in genomic loci and biological
pathways affect human height
Ref. 6.(2010)TITLE     Association analysis of ADPRT1, AKR1B1, RAGE, GFPT2
and PAI-1 gene polymorphisms with chronic renal insufficiency among Asian
Indians with type-2 diabets REMARK    GeneRIF: association of nine single nucleotide polymorphisms in
ADPRT1, AKR1B1), RAGE, GFPT2 and PAI-1 genes with chronic renalinsufficiency
among Asian Indians with type 2 diabetes
Ref. 7.(2007)  TITLE     Glutamine fructose-6-phosphate amidotransferase (GFAT)
gene expression and activity in patients with type 2 diabetes:
inter-relationships with hyperglycaemia and oxidative stress GeneRIF: 
Increased GFAT activity appears to be associated with
insulin resistance, postprandial hyperglycaemia and oxidative
stress in T2DM and may point towards a potential pathway amenable
for therapeutic intervention.
Ref. 8.(2007) Mutations in gfpt1 and skiv2l2 cause distinct stage-specific
            defects in larval melanocyte regeneration  in zebrafish .
Ref. 9.(2004) Common variants of gene associated to Diabetes mellitus type 2. 
Ref. 10.(1999):  Cloning and mapping of gene GFPT2 from mouse and human.  
 
LOCUS       NP_005101                682 aa            linear   PRI 23-NOV-2018
DEFINITION  glutamine--fructose-6-phosphate aminotransferase [isomerizing] 2
            [Homo sapiens].
ACCESSION   NP_005101
VERSION     NP_005101.1
DBSOURCE    REFSEQ: accession NM_005110.4
KEYWORDS    RefSeq.
SOURCE      Homo sapiens (human)
  ORGANISM  Homo sapiens
            Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
            Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini;
            Catarrhini; Hominidae; Homo.
REFERENCE   1  (residues 1 to 682)
  AUTHORS   Oikari S, Makkonen K, Deen AJ, Tyni I, Karna R, Tammi RH and Tammi
            MI.
  TITLE     Hexosamine biosynthesis in keratinocytes: roles of GFAT and GNPDA
            enzymes in the maintenance of UDP-GlcNAc content and hyaluronan
            synthesis
  JOURNAL   Glycobiology 26 (7), 710-722 (2016)
   PUBMED   26887390
  REMARK    GeneRIF: GNPDA1 siRNA induced GFAT2 which was hardly measurable in
            these cells under standard culture conditions, GNPDA2 siRNA
            increased GFAT1, and GFAT1 siRNA increased the expression of
            hyaluronan synthase 2 (HAS2). Silencing of GFAT1 stimulated GNPDA1
            and GDPDA2, and inhibited cell migration.
REFERENCE   2  (residues 1 to 682)
  AUTHORS   Yang X, Coulombe-Huntington J, Kang S,et al. 
  TITLE     Widespread Expansion of Protein Interaction Capabilities by
            Alternative Splicing
  JOURNAL   Cell 164 (4), 805-817 (2016)
   PUBMED   26871637
REFERENCE   3  (residues 1 to 682)
  AUTHORS   Irvin MR, Shrestha S, Chen YD, Wiener HW, Haritunians T, Vaughan
            LK, Tiwari HK, Taylor KD, Scherzer R, Saag MS, Grunfeld C, Rotter
            JI and Arnett DK.
  TITLE     Genes linked to energy metabolism and immunoregulatory mechanisms
            are associated with subcutaneous adipose tissue distribution in
            HIV-infected men
  JOURNAL   Pharmacogenet. Genomics 21 (12), 798-807 (2011)
   PUBMED   21897333
REFERENCE   4  (residues 1 to 682)
  AUTHORS   Lee OH, Kim H, He Q, Baek HJ, Yang D, Chen LY, Liang J, Chae HK,
            Safari A, Liu D and Songyang Z.
  TITLE     Genome-wide YFP fluorescence complementation screen identifies new
            regulators for telomere signaling in human cells
  JOURNAL   Mol. Cell Proteomics 10 (2), M110.001628 (2011)
   PUBMED   21044950
REFERENCE   5  (residues 1 to 682)
  AUTHORS   Lango Allen H, Estrada K et al. 
  TITLE     Hundreds of variants clustered in genomic loci and biological
            pathways affect human height
  JOURNAL   Nature 467 (7317), 832-838 (2010)
   PUBMED   20881960
REFERENCE   6  (residues 1 to 682)
  AUTHORS   Prasad P, Tiwari AK, Kumar KM, Ammini AC, Gupta A, Gupta R and
            Thelma BK.
  TITLE     Association analysis of ADPRT1, AKR1B1, RAGE, GFPT2 and PAI-1 gene
            polymorphisms with chronic renal insufficiency among Asian Indians
            with type-2 diabetes
  JOURNAL   BMC Med. Genet. 11, 52 (2010)
   PUBMED   20353610
  REMARK    GeneRIF: association of nine single nucleotide polymorphisms in
            ADPRT1, AKR1B1), RAGE, GFPT2 and PAI-1 genes with chronic renal
            insufficiency among Asian Indians with type 2 diabetes
            GeneRIF: Observational study of gene-disease association. (HuGE
            Navigator)
            Publication Status: Online-Only
REFERENCE   7  (residues 1 to 682)
  AUTHORS   Srinivasan V, Sandhya N, Sampathkumar R, Farooq S, Mohan V and
            Balasubramanyam M.
  TITLE     Glutamine fructose-6-phosphate amidotransferase (GFAT) gene
            expression and activity in patients with type 2 diabetes:
            inter-relationships with hyperglycaemia and oxidative stress
  JOURNAL   Clin. Biochem. 40 (13-14), 952-957 (2007)
   PUBMED   17574229
  REMARK    GeneRIF: Increased GFAT activity appears to be associated with
            insulin resistance, postprandial hyperglycaemia and oxidative
            stress in T2DM and may point towards a potential pathway amenable
            for therapeutic intervention.
REFERENCE   8  (residues 1 to 682)
  AUTHORS   Yang CT, Hindes AE, Hultman KA and Johnson SL.
  TITLE     Mutations in gfpt1 and skiv2l2 cause distinct stage-specific
            defects in larval melanocyte regeneration in zebrafish
  JOURNAL   PLoS Genet. 3 (6), e88 (2007)
   PUBMED   17542649
REFERENCE   9  (residues 1 to 682)
  AUTHORS   Zhang H, Jia Y, Cooper JJ, Hale T, Zhang Z and Elbein SC.
  TITLE     Common variants in glutamine:fructose-6-phosphate amidotransferase
            2 (GFPT2) gene are associated with type 2 diabetes, diabetic
            nephropathy, and increased GFPT2 mRNA levels
  JOURNAL   J. Clin. Endocrinol. Metab. 89 (2), 748-755 (2004)
   PUBMED   14764791
  REMARK    GeneRIF: GFPT2 mRNA levels in transformed lymphocytes significantly
            increased among African-Americans. Associated allele of 3' UTR SNP
            approximately 2-fold overexpressed. 3' UTR variant results in
            increased GFPT2 mRNA with resultant increased hexosamine flux.
            GeneRIF: Observational study of gene-disease association. (HuGE
            Navigator)
REFERENCE   10 (residues 1 to 682)
  AUTHORS   Oki T, Yamazaki K, Kuromitsu J, Okada M and Tanaka I.
  TITLE     cDNA cloning and mapping of a novel subtype of
            glutamine:fructose-6-phosphate amidotransferase (GFAT2) in human
            and mouse
  JOURNAL   Genomics 57 (2), 227-234 (1999)
   PUBMED   10198162
COMMENT     VALIDATED REFSEQ: This record has undergone validation or
            preliminary review. The reference sequence was derived from
            BI753491.1, AB016789.1, AK022507.1 and BC000012.2.
            
            ##Evidence-Data-START##
            Transcript exon combination :: AK022507.1, SRR1803616.184569.1
                                           [ECO:0000332]
            RNAseq introns              :: mixed/partial sample support
                                           SAMEA1965299, SAMEA1966682
                                           [ECO:0000350]
            ##Evidence-Data-END##
FEATURES             Location/Qualifiers
     source          1..682
                     /organism="Homo sapiens"
                     /db_xref="taxon:9606"
                     /chromosome="5"
                     /map="5q35.3"
     Protein         1..682
                     /product="glutamine--fructose-6-phosphate aminotransferase
                     [isomerizing] 2"
                     /EC_number="2.6.1.16"
                     /note="glutamine: fructose-6-phosphate aminotransferase 2;
                     glucosamine--fructose-6-phosphate aminotransferase
                     [isomerizing] 2; hexosephosphate aminotransferase 2;
                     D-fructose-6-phosphate amidotransferase 2;
                     glutamine:fructose-6-phosphate amidotransferase 2"
                     /calculated_mol_wt=76800
     Region          1..682
                     /region_name="PLN02981"
                     /note="glucosamine:fructose-6-phosphate aminotransferase"
                     /db_xref="CDD:215531"
     Region          2..285
                     /region_name="GFAT"
                     /note="Glutamine amidotransferases class-II
                     (Gn-AT)_GFAT-type. This domain is found at the N-terminus
                     of glucosamine-6P synthase (GlmS, or GFAT in humans). The
                     glutaminase domain catalyzes amide nitrogen transfer from
                     glutamine to the appropriate substrate. In...; cd00714"
                     /db_xref="CDD:238366"
     Site            order(2,33,92..93,95..96,105,120..121,145..146)
                     /site_type="active"
                     /note="glutaminase active site [active]"
                     /db_xref="CDD:238366"
     Site            244
                     /site_type="other"
                     /experiment="experimental evidence, no additional details
                     recorded"
                     /note="Phosphoserine. {ECO:0000244|PubMed:23186163};
                     propagated from UniProtKB/Swiss-Prot (O94808.3)"
     Region          369..494
                     /region_name="SIS_GlmS_GlmD_1"
                     /note="SIS (Sugar ISomerase) domain repeat 1 found in
                     Glucosamine 6-phosphate synthase (GlmS) and
                     Glucosamine-6-phosphate deaminase (GlmD). The SIS domain
                     is found in many phosphosugar isomerases and phosphosugar
                     binding proteins. GlmS contains a N-terminal...; cd05008"
                     /db_xref="CDD:240141"
     Site            order(375..376,386..387,390..391,398,400,404,407,429)
                     /site_type="other"
                     /note="dimer interface [polypeptide binding]"
                     /db_xref="CDD:240141"
     Site            order(377..378,422..424)
                     /site_type="active"
                     /db_xref="CDD:240141"
     Region          377..378
                     /region_name="Substrate-binding.
                     {ECO:0000250|UniProtKB:Q06210}"
                     /experiment="experimental evidence, no additional details
                     recorded"
                     /note="propagated from UniProtKB/Swiss-Prot (O94808.3)"
     Region          422..424
                     /region_name="Substrate-binding.
                     {ECO:0000250|UniProtKB:Q06210}"
                     /experiment="experimental evidence, no additional details
                     recorded"
                     /note="propagated from UniProtKB/Swiss-Prot (O94808.3)"
     Region          526..680
                     /region_name="SIS_GlmS_GlmD_2"
                     /note="SIS (Sugar ISomerase) domain repeat 2 found in
                     Glucosamine 6-phosphate synthase (GlmS) and
                     Glucosamine-6-phosphate deaminase (GlmD). The SIS domain
                     is found in many phosphosugar isomerases and phosphosugar
                     binding proteins. GlmS contains a N-terminal...; cd05009"
                     /db_xref="CDD:240142"
     Site            order(547,561,565,567,569,571,575,577..579,581..584,
                     601..602,606,608..609,673..674,679)
                     /site_type="other"
                     /note="dimer interface [polypeptide binding]"
                     /db_xref="CDD:240142"
     Site            order(559,562)
                     /site_type="active"
                     /db_xref="CDD:240142"
     CDS             1..682
                     /gene="GFPT2"
                     /gene_synonym="GFAT; GFAT 2; GFAT2"
                     /coded_by="NM_005110.4:120..2168"
                     /db_xref="CCDS:CCDS43411.1"
                     /db_xref="GeneID:9945"
                     /db_xref="HGNC:HGNC:4242"
                     /db_xref="MIM:603865"
ORIGIN      
        1 mcgifaymny rvprtrkeif etlikglqrl eyrgydsagv aidgnnhevk erhiqlvkkr
       61 gkvkaldeel ykqdsmdlkv efethfgiah trwathgvps avnshpqrsd kgnefvvihn
      121 giitnykdlr kfleskgyef esetdtetia klikyvfdnr eteditfstl verviqqleg
      181 afalvfksvh ypgeavatrr gsplligvrs kyklsteqip ilyrtctlen vknicktrmk
      241 rldssaclha vgdkavefff asdasaiieh tnrvifledd diaavadgkl sihrvkrsas
      301 ddpsraiqtl qmelqqimkg nfsafmqkei feqpesvfnt mrgrvnfetn tvllgglkdh
      361 lkeirrcrrl ivigcgtsyh aavatrqvle eltelpvmve lasdfldrnt pvfrddvcff
      421 isqsgetadt llalryckdr galtvgvtnt vgssisretd cgvhinagpe igvastkayt
      481 sqfislvmfg lmmsedrisl qnrrqeiirg lrslpelike vlsleekihd lalelytqrs
      541 llvmgrgyny atclegalki keitymhseg ilagelkhgp lalidkqmpv imvimkdpcf
      601 akcqnalqqv tarqgrpiil cskddtessk fayktielph tvdclqgils viplqllsfh
      661 lavlrgydvd fprnlaksvt ve
//

Neuramiinihappo eli sialihappo


 Ihmisellä  sokeriaineenvaihdunnasta käsin syntyy sialihappoa, eli neuramiinihappoa.
 Glukoosin täytyy ensiki oll fosforyloituneena  ja siten  muttuneena fruktoosi6-fosfaatiksi, josta entsyymi GFAT ja glutamiini  tuottavat glukosamini-6-fosfaattia.   GFAT  entsyymi  on olennainen.


 Tähän  enimmäiseen synteesiin osallistuu aminohappo fundamentaaliesta aineenvaihdunnasta, glutamiinihappoa. Typpipitoinen ryhmä liitetään sokeriin, jolloin sokeri siirtyy  struktuurirakenteeksi.


https://www.researchgate.net/profile/Camille_Mace/publication/260647505/figure/fig3/AS:203099760271370@1425434164438/Sialic-acid-biosynthesis-and-recycling-pathway-In-humans-sialic-acid-is-synthesized.png

https://www.sigmaaldrich.com/life-science/learning-center/biofiles/biofiles-5-1/sialic-acid-synthesis.htmlsynthesis.html https://www.sigmaaldrich.com/content/dam/sigma-aldrich/images/online-catalog/figure-3-lg.gif