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P32363

- GPI3_YEAST

UniProt

P32363 - GPI3_YEAST

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Protein
Phosphatidylinositol N-acetylglucosaminyltransferase GPI3 subunit
Gene
SPT14, CWH6, GPI3, YPL175W, P2269
Organism
Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast)
Status
Reviewed - Annotation score: 5 out of 5 - Experimental evidence at protein leveli

Functioni

Catalytic subunit in the complex catalyzing the transfer of N-acetylglucosamine from UDP-N-acetylglucosamine to phosphatidylinositol, the first step of GPI biosynthesis.2 Publications

Catalytic activityi

UDP-N-acetyl-D-glucosamine + 1-phosphatidyl-1D-myo-inositol = UDP + 6-(N-acetyl-alpha-D-glucosaminyl)-1-phosphatidyl-1D-myo-inositol.

Enzyme regulationi

Inhibited by Ras, probably via the interaction between RAS2 and ERI1.1 Publication

Pathwayi

GO - Molecular functioni

  1. UDP-glycosyltransferase activity Source: SGD
  2. phosphatidylinositol N-acetylglucosaminyltransferase activity Source: UniProtKB-EC

GO - Biological processi

  1. GPI anchor biosynthetic process Source: SGD
Complete GO annotation...

Keywords - Molecular functioni

Glycosyltransferase, Transferase

Keywords - Biological processi

GPI-anchor biosynthesis

Enzyme and pathway databases

BioCyciYEAST:G3O-34070-MONOMER.
UniPathwayiUPA00196.

Protein family/group databases

CAZyiGT4. Glycosyltransferase Family 4.

Names & Taxonomyi

Protein namesi
Recommended name:
Phosphatidylinositol N-acetylglucosaminyltransferase GPI3 subunit (EC:2.4.1.198)
Alternative name(s):
GlcNAc-PI synthesis protein
Gene namesi
Name:SPT14
Synonyms:CWH6, GPI3
Ordered Locus Names:YPL175W
ORF Names:P2269
OrganismiSaccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast)
Taxonomic identifieri559292 [NCBI]
Taxonomic lineageiEukaryotaFungiDikaryaAscomycotaSaccharomycotinaSaccharomycetesSaccharomycetalesSaccharomycetaceaeSaccharomyces
ProteomesiUP000002311: Chromosome XVI

Organism-specific databases

SGDiS000006096. SPT14.

Subcellular locationi

Topology

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Transmembranei407 – 42721Helical; Reviewed prediction
Add
BLAST

GO - Cellular componenti

  1. endoplasmic reticulum Source: SGD
  2. endoplasmic reticulum membrane Source: UniProtKB-SubCell
  3. glycosylphosphatidylinositol-N-acetylglucosaminyltransferase (GPI-GnT) complex Source: SGD
  4. integral component of membrane Source: UniProtKB-KW
Complete GO annotation...

Keywords - Cellular componenti

Endoplasmic reticulum, Membrane

Pathology & Biotechi

Mutagenesis

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Mutagenesisi289 – 2891E → A: Severe growth defect. 1 Publication
Mutagenesisi289 – 2891E → D: Reduces the transferase reaction 12-fold. 1 Publication
Mutagenesisi289 – 2891E → G: Lethal. 1 Publication
Mutagenesisi297 – 2971E → A or G: Lethal. 1 Publication
Mutagenesisi297 – 2971E → D: No transferase activity. 1 Publication
Mutagenesisi301 – 3011C → A: Reduces the transferase reaction 5-fold. 1 Publication

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 452452Phosphatidylinositol N-acetylglucosaminyltransferase GPI3 subunit
PRO_0000080325Add
BLAST

Proteomic databases

MaxQBiP32363.
PaxDbiP32363.
PeptideAtlasiP32363.
PRIDEiP32363.

Expressioni

Gene expression databases

GenevestigatoriP32363.

Interactioni

Subunit structurei

Component of the phosphatidylinositol N-acetylglucosaminyltransferase complex composed of at least GPI1, GPI2, GPI3, GPI15, GPI19 and ERI1.

Protein-protein interaction databases

BioGridi36008. 62 interactions.
DIPiDIP-1834N.
IntActiP32363. 1 interaction.
MINTiMINT-385729.
STRINGi4932.YPL175W.

Structurei

3D structure databases

ProteinModelPortaliP32363.
SMRiP32363. Positions 17-376.

Family & Domainsi

Sequence similaritiesi

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

eggNOGiCOG0438.
GeneTreeiENSGT00390000014405.
HOGENOMiHOG000203293.
KOiK03857.
OMAiHTGRENT.
OrthoDBiEOG7ZGXCR.

Family and domain databases

InterProiIPR001296. Glyco_trans_1.
IPR013234. PIGA_GPI_anchor_biosynthesis.
[Graphical view]
PfamiPF00534. Glycos_transf_1. 1 hit.
PF08288. PIGA. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

P32363-1 [UniParc]FASTAAdd to Basket

« Hide

MGFNIAMLCD FFYPQLGGVE FHIYHLSQKL IDLGHSVVII THAYKDRVGV    50
RHLTNGLKVY HVPFFVIFRE TTFPTVFSTF PIIRNILLRE QIQIVHSHGS 100
ASTFAHEGIL HANTMGLRTV FTDHSLYGFN NLTSIWVNKL LTFTLTNIDR 150
VICVSNTCKE NMIVRTELSP DIISVIPNAV VSEDFKPRDP TGGTKRKQSR 200
DKIVIVVIGR LFPNKGSDLL TRIIPKVCSS HEDVEFIVAG DGPKFIDFQQ 250
MIESHRLQKR VQLLGSVPHE KVRDVLCQGD IYLHASLTEA FGTILVEAAS 300
CNLLIVTTQV GGIPEVLPNE MTVYAEQTSV SDLVQATNKA INIIRSKALD 350
TSSFHDSVSK MYDWMDVAKR TVEIYTNISS TSSADDKDWM KMVANLYKRD 400
GIWAKHLYLL CGIVEYMLFF LLEWLYPRDE IDLAPKWPKK TVSNETKEAR 450
ET 452
Length:452
Mass (Da):51,242
Last modified:June 16, 2009 - v4
Checksum:i7589FD815707EC73
GO

Sequence cautioni

The sequence CAA97882.1 differs from that shown. Reason: Erroneous gene model prediction.

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
X63290 Genomic DNA. Translation: CAA44924.1.
Z73531 Genomic DNA. Translation: CAA97882.1. Sequence problems.
BK006949 Genomic DNA. Translation: DAA11259.1.
PIRiS65187.
RefSeqiNP_015150.2. NM_001183989.1.

Genome annotation databases

EnsemblFungiiYPL175W; YPL175W; YPL175W.
GeneIDi855928.
KEGGisce:YPL175W.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
X63290 Genomic DNA. Translation: CAA44924.1 .
Z73531 Genomic DNA. Translation: CAA97882.1 . Sequence problems.
BK006949 Genomic DNA. Translation: DAA11259.1 .
PIRi S65187.
RefSeqi NP_015150.2. NM_001183989.1.

3D structure databases

ProteinModelPortali P32363.
SMRi P32363. Positions 17-376.
ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

BioGridi 36008. 62 interactions.
DIPi DIP-1834N.
IntActi P32363. 1 interaction.
MINTi MINT-385729.
STRINGi 4932.YPL175W.

Protein family/group databases

CAZyi GT4. Glycosyltransferase Family 4.

Proteomic databases

MaxQBi P32363.
PaxDbi P32363.
PeptideAtlasi P32363.
PRIDEi P32363.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

EnsemblFungii YPL175W ; YPL175W ; YPL175W .
GeneIDi 855928.
KEGGi sce:YPL175W.

Organism-specific databases

SGDi S000006096. SPT14.

Phylogenomic databases

eggNOGi COG0438.
GeneTreei ENSGT00390000014405.
HOGENOMi HOG000203293.
KOi K03857.
OMAi HTGRENT.
OrthoDBi EOG7ZGXCR.

Enzyme and pathway databases

UniPathwayi UPA00196 .
BioCyci YEAST:G3O-34070-MONOMER.

Miscellaneous databases

NextBioi 980663.
PROi P32363.

Gene expression databases

Genevestigatori P32363.

Family and domain databases

InterProi IPR001296. Glyco_trans_1.
IPR013234. PIGA_GPI_anchor_biosynthesis.
[Graphical view ]
Pfami PF00534. Glycos_transf_1. 1 hit.
PF08288. PIGA. 1 hit.
[Graphical view ]
ProtoNeti Search...

Publicationsi

« Hide 'large scale' publications
  1. "The Saccharomyces cerevisiae SPT14 gene is essential for normal expression of the yeast transposon, Ty, as well as for expression of the HIS4 gene and several genes in the mating pathway."
    Fassler J.S., Gray W., Lee J.P., Yu G., Gingerich G.
    Mol. Gen. Genet. 230:310-320(1991) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
    Strain: ATCC 204508 / S288c.
  2. Fassler J.S.
    Submitted (JAN-1992) to the EMBL/GenBank/DDBJ databases
    Cited for: SEQUENCE REVISION.
  3. "The nucleotide sequence of Saccharomyces cerevisiae chromosome XVI."
    Bussey H., Storms R.K., Ahmed A., Albermann K., Allen E., Ansorge W., Araujo R., Aparicio A., Barrell B.G., Badcock K., Benes V., Botstein D., Bowman S., Brueckner M., Carpenter J., Cherry J.M., Chung E., Churcher C.M.
    , Coster F., Davis K., Davis R.W., Dietrich F.S., Delius H., DiPaolo T., Dubois E., Duesterhoeft A., Duncan M., Floeth M., Fortin N., Friesen J.D., Fritz C., Goffeau A., Hall J., Hebling U., Heumann K., Hilbert H., Hillier L.W., Hunicke-Smith S., Hyman R.W., Johnston M., Kalman S., Kleine K., Komp C., Kurdi O., Lashkari D., Lew H., Lin A., Lin D., Louis E.J., Marathe R., Messenguy F., Mewes H.-W., Mirtipati S., Moestl D., Mueller-Auer S., Namath A., Nentwich U., Oefner P., Pearson D., Petel F.X., Pohl T.M., Purnelle B., Rajandream M.A., Rechmann S., Rieger M., Riles L., Roberts D., Schaefer M., Scharfe M., Scherens B., Schramm S., Schroeder M., Sdicu A.-M., Tettelin H., Urrestarazu L.A., Ushinsky S., Vierendeels F., Vissers S., Voss H., Walsh S.V., Wambutt R., Wang Y., Wedler E., Wedler H., Winnett E., Zhong W.-W., Zollner A., Vo D.H., Hani J.
    Nature 387:103-105(1997) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: ATCC 204508 / S288c.
  4. Cited for: GENOME REANNOTATION.
    Strain: ATCC 204508 / S288c.
  5. "The yeast spt14 gene is homologous to the human PIG-A gene and is required for GPI anchor synthesis."
    Schoenbaechler M., Horvath A., Fassler J.S., Riezman H.
    EMBO J. 14:1637-1645(1995) [PubMed] [Europe PMC] [Abstract]
    Cited for: CHARACTERIZATION.
  6. "Temperature-sensitive yeast GPI anchoring mutants gpi2 and gpi3 are defective in the synthesis of N-acetylglucosaminyl phosphatidylinositol. Cloning of the GPI2 gene."
    Leidich S.D., Kostova Z., Latek R.R., Costello L.C., Drapp D.A., Gray W., Fassler J.S., Orlean P.
    J. Biol. Chem. 270:13029-13035(1995) [PubMed] [Europe PMC] [Abstract]
    Cited for: FUNCTION.
  7. "Photoaffinity labelling with P3-(4-azidoanilido)uridine 5'-triphosphate identifies gpi3p as the UDP-GlcNAc-binding subunit of the enzyme that catalyses formation of GlcNAc-phosphatidylinositol, the first glycolipid intermediate in glycosylphosphatidylinositol synthesis."
    Kostova Z., Rancour D.M., Menon A.K., Orlean P.
    Biochem. J. 350:815-822(2000) [PubMed] [Europe PMC] [Abstract]
    Cited for: FUNCTION, SUBSTRATE BINDING.
  8. "Test of intron predictions reveals novel splice sites, alternatively spliced mRNAs and new introns in meiotically regulated genes of yeast."
    Davis C.A., Grate L., Spingola M., Ares M. Jr.
    Nucleic Acids Res. 28:1700-1706(2000) [PubMed] [Europe PMC] [Abstract]
    Cited for: IDENTIFICATION OF INTRON.
  9. "Comparative importance in vivo of conserved glutamate residues in the EX7E motif retaining glycosyltransferase Gpi3p, the UDP-GlcNAc-binding subunit of the first enzyme in glycosylphosphatidylinositol assembly."
    Kostova Z., Yan B.C., Vainauskas S., Schwartz R., Menon A.K., Orlean P.
    Eur. J. Biochem. 270:4507-4514(2003) [PubMed] [Europe PMC] [Abstract]
    Cited for: MUTAGENESIS OF GLU-289; GLU-297 AND CYS-301.
  10. Cited for: LEVEL OF PROTEIN EXPRESSION [LARGE SCALE ANALYSIS].
  11. "Yeast Ras regulates the complex that catalyzes the first step in GPI-anchor biosynthesis at the ER."
    Sobering A.K., Watanabe R., Romeo M.J., Yan B.C., Specht C.A., Orlean P., Riezman H., Levin D.E.
    Cell 117:637-648(2004) [PubMed] [Europe PMC] [Abstract]
    Cited for: ENZYME REGULATION.

Entry informationi

Entry nameiGPI3_YEAST
AccessioniPrimary (citable) accession number: P32363
Secondary accession number(s): D6W3J3, Q08918
Entry historyi
Integrated into UniProtKB/Swiss-Prot: October 1, 1993
Last sequence update: June 16, 2009
Last modified: June 11, 2014
This is version 122 of the entry and version 4 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programFungal Protein Annotation Program

Miscellaneousi

Miscellaneous

Present with 1480 molecules/cell in log phase SD medium.

Caution

Was originally (1 Publication) thought to be involved in transcription.

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families
  3. Yeast
    Yeast (Saccharomyces cerevisiae): entries, gene names and cross-references to SGD
  4. Yeast chromosome XVI
    Yeast (Saccharomyces cerevisiae) chromosome XVI: entries and gene names

External Data

Dasty 3

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