Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.
Protein

Dolichyl-diphosphooligosaccharide--protein glycosyltransferase 48 kDa subunit

Gene

DDOST

Organism
Canis lupus familiaris (Dog) (Canis familiaris)
Status
Reviewed-Annotation score: Annotation score: 4 out of 5-Experimental evidence at protein leveli

Functioni

Essential subunit of the N-oligosaccharyl transferase (OST) complex which catalyzes the transfer of a high mannose oligosaccharide from a lipid-linked oligosaccharide donor to an asparagine residue within an Asn-X-Ser/Thr consensus motif in nascent polypeptide chains.

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

  • protein glycosylation Source: UniProtKB
  • protein N-linked glycosylation via asparagine Source: InterPro
Complete GO annotation...

Keywords - Molecular functioni

Glycosyltransferase, Transferase

Enzyme and pathway databases

UniPathwayiUPA00378.

Names & Taxonomyi

Protein namesi
Recommended name:
Dolichyl-diphosphooligosaccharide--protein glycosyltransferase 48 kDa subunit (EC:2.4.99.18)
Short name:
DDOST 48 kDa subunit
Short name:
Oligosaccharyl transferase 48 kDa subunit
Gene namesi
Name:DDOST
Synonyms:OST48
OrganismiCanis lupus familiaris (Dog) (Canis familiaris)
Taxonomic identifieri9615 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaLaurasiatheriaCarnivoraCaniformiaCanidaeCanis
Proteomesi
  • UP000002254 Componenti: Unplaced

Subcellular locationi

Topology

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Topological domaini33 – 416384LumenalSequence analysisAdd
BLAST
Transmembranei417 – 43620HelicalSequence analysisAdd
BLAST
Topological domaini437 – 4459CytoplasmicSequence analysis

GO - Cellular componenti

  • integral component of membrane Source: UniProtKB-KW
  • oligosaccharyltransferase complex Source: UniProtKB
Complete GO annotation...

Keywords - Cellular componenti

Endoplasmic reticulum, Membrane

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Signal peptidei1 – 3232By similarityAdd
BLAST
Chaini33 – 445413Dolichyl-diphosphooligosaccharide--protein glycosyltransferase 48 kDa subunitPRO_0000021955Add
BLAST

Proteomic databases

PaxDbiQ05052.
PRIDEiQ05052.

Interactioni

Subunit structurei

Component of the oligosaccharyltransferase (OST) complex. OST seems to exist in different forms which contain at least RPN1, RPN2, OST48, DAD1, OSTC, KRTCAP2 and either STT3A or STT3B. OST can form stable complexes with the Sec61 complex or with both the Sec61 and TRAP complexes even after release from the ribosome. Also identified as part of a complex which includes CANX, DERL1, DERL2, DDOST/OST48, RPN1, RPN2, SELK, VIMP, STT3A AND VCP. This contains known members of the OST complex and may be a form of this complex.1 Publication

Protein-protein interaction databases

IntActiQ05052. 1 interaction.
STRINGi9615.ENSCAFP00000022169.

Family & Domainsi

Sequence similaritiesi

Belongs to the DDOST 48 kDa subunit family.Curated

Keywords - Domaini

Signal, Transmembrane, Transmembrane helix

Phylogenomic databases

eggNOGiKOG2754. Eukaryota.
ENOG410XSF3. LUCA.
HOGENOMiHOG000173744.
HOVERGENiHBG053378.
InParanoidiQ05052.
KOiK12670.

Family and domain databases

InterProiIPR005013. DDOST_48_kDa_subunit.
[Graphical view]
PANTHERiPTHR10830. PTHR10830. 1 hit.
PfamiPF03345. DDOST_48kD. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

Q05052-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MRRRRKMEAG AAARAWSLLW LLLPLLGPVC ASGPRTLVLL DNLNLRETHS
60 70 80 90 100
LFFRSLKDRA FELTFKTADD PSLSLIKYGE FLYDNLIIFS PSVEDFGGNI
110 120 130 140 150
NVETISTFID GGGSVLVAAS SDIGDPLREL GSECGIEFDE EKTAVIDHHN
160 170 180 190 200
YDVSDLGQHT LIVADPENLL KAPTIVGRSS LNPILFRGVG MVADPDNPLV
210 220 230 240 250
LDILTGSSTS YSFFPDKPIT QYPHAVGKNT LLIAGLQARN NARVVFSGSL
260 270 280 290 300
DFFSDAFFNS AVQKAAPGSQ RYSQTGNYEL AVALSRWVFK EEGVLRVGPV
310 320 330 340 350
SHHRVGETAP PNAYTVTDLV EYSIVIEQLS NGRWVPFDGD DIQLEFVRID
360 370 380 390 400
PFVRTFLKKK GGKYSVQFKL PDVYGVFQFK VDYNRLGYTH LHSSTQVSVR
410 420 430 440
PLQHTQYERF IPSAYPYYAS AFSMMLGLFI FSTVFLHMKE KEKSD
Length:445
Mass (Da):49,634
Last modified:February 1, 1994 - v1
Checksum:iC4F3384B4CE4CF66
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
M98392 mRNA. Translation: AAA30880.1.
PIRiA45139.
RefSeqiNP_001003321.1. NM_001003321.1.
UniGeneiCfa.44600.

Genome annotation databases

GeneIDi404012.
KEGGicfa:404012.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
M98392 mRNA. Translation: AAA30880.1.
PIRiA45139.
RefSeqiNP_001003321.1. NM_001003321.1.
UniGeneiCfa.44600.

3D structure databases

ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

IntActiQ05052. 1 interaction.
STRINGi9615.ENSCAFP00000022169.

Proteomic databases

PaxDbiQ05052.
PRIDEiQ05052.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

GeneIDi404012.
KEGGicfa:404012.

Organism-specific databases

CTDi1650.

Phylogenomic databases

eggNOGiKOG2754. Eukaryota.
ENOG410XSF3. LUCA.
HOGENOMiHOG000173744.
HOVERGENiHBG053378.
InParanoidiQ05052.
KOiK12670.

Enzyme and pathway databases

UniPathwayiUPA00378.

Family and domain databases

InterProiIPR005013. DDOST_48_kDa_subunit.
[Graphical view]
PANTHERiPTHR10830. PTHR10830. 1 hit.
PfamiPF03345. DDOST_48kD. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiOST48_CANLF
AccessioniPrimary (citable) accession number: Q05052
Entry historyi
Integrated into UniProtKB/Swiss-Prot: February 1, 1994
Last sequence update: February 1, 1994
Last modified: June 8, 2016
This is version 97 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Caution

It is uncertain whether Met-1 or Met-7 is the initiator.Curated

Keywords - Technical termi

Complete proteome, Direct protein sequencing, Reference proteome

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.