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Protein

Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit stt3

Gene

stt3

Organism
Schizosaccharomyces pombe (strain 972 / ATCC 24843) (Fission yeast)
Status
Reviewed-Annotation score: -Protein inferred from homologyi

Functioni

Catalytic subunit of the N-oligosaccharyl transferase (OST) complex which catalyzes the transfer of a high mannose oligosaccharide to an asparagine residue within an Asn-X-Ser/Thr consensus motif in nascent polypeptide chains. N-glycosylation occurs cotranslationally and the complex associates with the Sec61 complex at the channel-forming translocon complex that mediates protein translocation across the endoplasmic reticulum (ER) (By similarity).By similarity

Catalytic activityi

Dolichyl diphosphooligosaccharide + [protein]-L-asparagine = dolichyl diphosphate + a glycoprotein with the oligosaccharide chain attached by N-beta-D-glycosyl linkage to a protein L-asparagine.

Pathwayi: protein glycosylation

This protein is involved in the pathway protein glycosylation, which is part of Protein modification.
View all proteins of this organism that are known to be involved in the pathway protein glycosylation and in Protein modification.

GO - Molecular functioni

GO - Biological processi

  • post-translational protein modification Source: GO_Central
  • protein N-linked glycosylation Source: PomBase
  • protein N-linked glycosylation via asparagine Source: GO_Central

Keywordsi

Molecular functionGlycosyltransferase, Transferase

Enzyme and pathway databases

UniPathwayiUPA00378

Protein family/group databases

CAZyiGT66 Glycosyltransferase Family 66

Names & Taxonomyi

Protein namesi
Recommended name:
Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit stt3 (EC:2.4.99.18)
Short name:
Oligosaccharyl transferase subunit stt3
Gene namesi
Name:stt3
ORF Names:SPBC1271.02
OrganismiSchizosaccharomyces pombe (strain 972 / ATCC 24843) (Fission yeast)
Taxonomic identifieri284812 [NCBI]
Taxonomic lineageiEukaryotaFungiDikaryaAscomycotaTaphrinomycotinaSchizosaccharomycetesSchizosaccharomycetalesSchizosaccharomycetaceaeSchizosaccharomyces
Proteomesi
  • UP000002485 Componenti: Chromosome II

Organism-specific databases

EuPathDBiFungiDB:SPBC1271.02
PomBaseiSPBC1271.02 stt3

Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cell wall Cytoskeleton Vacuole Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte; Source: COMPARTMENTS

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Topological domaini1 – 21CytoplasmicSequence analysisAdd BLAST21
Transmembranei22 – 42HelicalSequence analysisAdd BLAST21
Topological domaini43 – 120LumenalSequence analysisAdd BLAST78
Transmembranei121 – 141HelicalSequence analysisAdd BLAST21
Topological domaini142 – 175CytoplasmicSequence analysisAdd BLAST34
Transmembranei176 – 196HelicalSequence analysisAdd BLAST21
Topological domaini197 – 214LumenalSequence analysisAdd BLAST18
Transmembranei215 – 235HelicalSequence analysisAdd BLAST21
Topological domaini236 – 243CytoplasmicSequence analysis8
Transmembranei244 – 264HelicalSequence analysisAdd BLAST21
Topological domaini265 – 275LumenalSequence analysisAdd BLAST11
Transmembranei276 – 296HelicalSequence analysisAdd BLAST21
Topological domaini297 – 303CytoplasmicSequence analysis7
Transmembranei304 – 323HelicalSequence analysisAdd BLAST20
Topological domaini324 – 364LumenalSequence analysisAdd BLAST41
Transmembranei365 – 385HelicalSequence analysisAdd BLAST21
Topological domaini386 – 392CytoplasmicSequence analysis7
Transmembranei393 – 410HelicalSequence analysisAdd BLAST18
Topological domaini411LumenalSequence analysis1
Transmembranei412 – 432HelicalSequence analysisAdd BLAST21
Topological domaini433 – 482CytoplasmicSequence analysisAdd BLAST50
Transmembranei483 – 503HelicalSequence analysisAdd BLAST21
Topological domaini504 – 752LumenalSequence analysisAdd BLAST249

Keywords - Cellular componenti

Endoplasmic reticulum, Membrane

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00000722921 – 752Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit stt3Add BLAST752

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Glycosylationi569N-linked (GlcNAc...) asparagineSequence analysis1
Glycosylationi573N-linked (GlcNAc...) asparagineSequence analysis1

Keywords - PTMi

Glycoprotein

Proteomic databases

MaxQBiO94335
PaxDbiO94335
PRIDEiO94335

Interactioni

Subunit structurei

Component of the oligosaccharyltransferase (OST) complex.By similarity

Protein-protein interaction databases

BioGridi276723, 1 interactor
STRINGi4896.SPBC1271.02.1

Family & Domainsi

Sequence similaritiesi

Belongs to the STT3 family.Curated

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

HOGENOMiHOG000157471
InParanoidiO94335
KOiK07151
OMAiNYRATAY
OrthoDBiEOG092C0UC6
PhylomeDBiO94335

Family and domain databases

InterProiView protein in InterPro
IPR003674 Oligo_trans_STT3
PfamiView protein in Pfam
PF02516 STT3, 1 hit

Sequencei

Sequence statusi: Complete.

O94335-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MANSATITSK KGVKSHQKDW KIPLKVLILI CIAVASVSSR LFSVIRYESI
60 70 80 90 100
IHEFDPWFNF RASKILVEQG FYNFLNWFDE RSWYPLGRVA GGTLYPGLMV
110 120 130 140 150
TSGIIFKVLH LLRINVNIRD VCVLLAPAFS GITAIATYYL ARELKSDACG
160 170 180 190 200
LLAAAFMGIA PGYTSRSVAG SYDNEAIAIT LLMSTFALWI KAVKSGSSFW
210 220 230 240 250
GACTGLLYFY MVTAWGGYVF ITNMIPLHVF VLLLMGRYTS KLYIAYTTYY
260 270 280 290 300
VIGTLASMQV PFVGFQPVST SEHMSALGVF GLLQLFAFYN YVKGLVSSKQ
310 320 330 340 350
FQILIRFALV CLVGLATVVL FALSSTGVIA PWTGRFYSLW DTNYAKIHIP
360 370 380 390 400
IIASVSEHQP PTWSSLFFDL QFLIWLLPVG VYLCFKELRN EHVFIIIYSV
410 420 430 440 450
LGTYFCGVMV RLVLTLTPCV CIAAAVAIST LLDTYMGPEV EEDKVSEEAA
460 470 480 490 500
SAKSKNKKGI FSILSFFTSG SKNIGIYSLL SRVLVISSTA YFLIMFVYHS
510 520 530 540 550
SWVTSNAYSS PTVVLSTVLN DGSLMYIDDF REAYDWLRRN TPYDTKVMSW
560 570 580 590 600
WDYGYQIAGM ADRITLVDNN TWNNTHIATV GKAMSSPEEK AYPILRKHDV
610 620 630 640 650
DYILIIYGGT LGYSSDDMNK FLWMIRISQG LWPDEIVERN FFTPNGEYRT
660 670 680 690 700
DDAATPTMRE SLLYKMSYHG AWKLFPPNQG YDRARNQKLP SKDPQLFTIE
710 720 730 740 750
EAFTTVHHLV RLYKVKKPDT LGRDLKQVTL FEEGKRKKLR RPAKTNEIPL

RV
Length:752
Mass (Da):84,974
Last modified:May 1, 1999 - v1
Checksum:i2ACB97DFE82B10B8
GO

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Sequence conflicti399S → P in BAA76479 (PubMed:10234787).Curated1
Sequence conflicti461F → S in BAA76479 (PubMed:10234787).Curated1
Sequence conflicti739 – 752LRRPA…IPLRV → SAVLQKLTKFL in BAA76479 (PubMed:10234787).CuratedAdd BLAST14

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AB015232 Genomic DNA Translation: BAA76479.1
CU329671 Genomic DNA Translation: CAA22192.1
PIRiT39338
T43370
RefSeqiNP_595148.1, NM_001021056.2

Genome annotation databases

EnsemblFungiiSPBC1271.02.1; SPBC1271.02.1:pep; SPBC1271.02
GeneIDi2540190
KEGGispo:SPBC1271.02

Similar proteinsi

Entry informationi

Entry nameiSTT3_SCHPO
AccessioniPrimary (citable) accession number: O94335
Secondary accession number(s): Q8WZK7
Entry historyiIntegrated into UniProtKB/Swiss-Prot: August 31, 2004
Last sequence update: May 1, 1999
Last modified: March 28, 2018
This is version 112 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programFungal Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. Schizosaccharomyces pombe
    Schizosaccharomyces pombe: entries and gene names
  3. SIMILARITY comments
    Index of protein domains and families
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