Gene Symbol | STT3B |
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Entrez Gene | 201595 |
Alt Symbol | CDG1X, SIMP, STT3-B |
Species | Human |
Gene Type | protein-coding |
Description | STT3B, subunit of the oligosaccharyltransferase complex (catalytic) |
Other Description | STT3, subunit of the oligosaccharyltransferase complex, homolog B|dolichyl-diphosphooligosaccharide protein glycotransferase|dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit STT3B|homolog of yeast STT3|oligosaccharyl transferase subunit STT3B|source of immunodominant MHC-associated peptides homolog |
Swissprots | Q96JZ4 Q96KY7 Q8TCJ2 |
Accessions | CAF85831 EAW64415 EAW64416 Q8TCJ2 AI914841 AK027789 BAB55370 AK074587 AK075380 BAC11581 AK311488 AX799082 CAE48447 AY074880 AAL71884 BC015880 AAH15880 HY015137 HY039873 XM_011533465 XP_011531767 NM_178862 NP_849193 |
Function | Catalytic 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. 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). STT3B is present in a small subset of OST complexes and mediates both cotranslational and post-translational N-glycosylation of target proteins: STT3B-containing complexes are required for efficient cotranslational glycosylation and while they are less competent than STT3A-containing complexes for cotranslational glycosylation, they have the ability to mediate glycosylation of some nascent sites that are not accessible for STT3A. STT3B-containing complexes also act post-translationally and mediate modification of skip |
Subcellular Location | Endoplasmic reticulum membrane; Multi-pass membrane protein. |
Tissue Specificity | Expressed in heart, brain, placenta, lung, liver, muscle, kidney and pancreas. Expressed in skin fibroblasts (at protein level). {ECO:0000269|PubMed:12887896}. |
Top Pathways | N-Glycan biosynthesis, Protein processing in endoplasmic reticulum |
SIMP (K-14) - sc-100148 from Santa Cruz Biotechnology
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SIMP (N-15) - sc-100149 from Santa Cruz Biotechnology
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Anti-STT3B antibody - ab122351 from Abcam
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STT3B Antibody - NBP1-81884 from Novus Biologicals
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Anti-STT3B antibody produced in rabbit - HPA036646 from Sigma-Aldrich
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STT3B antibody - 70R-20617 from Fitzgerald
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Stt3b Antibody - abx115879 from Abbexa
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STT3B / SIMP antibody - 15323-1-AP from Acris Antibodies
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STT3B antibody - 15323-1-AP from Proteintech Group
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Anti-STT3B (aa 492-533) polyclonal antibody - DPABH-20647 from Creative Diagnostics
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Anti-STT3B monoclonal antibody - DCABH-201552 from Creative Diagnostics
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STT3, subunit of the oligosaccharyltransferase complex, homolog B, Polyclonal Antibody - MBS711510 from MyBioSource
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STT3B Antibody - CSB-PA022886GA01HU from Cusabio
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Monoclonal Antibody to Fibroblast Activation Protein Alpha (FAPa) - MAC469Hu22 from Cloud-clone
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Polyclonal Antibody to Fibroblast Activation Protein Alpha (FAPa) - PAC469Hu01 from Cloud-clone
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STT3B - A9091 from NeoScientific
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STT3B Polyclonal Antibody - A9091 from ABclonal
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STT3B Antibody - abx124903 from Abbexa
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STT3B Antibody - abx145706 from Abbexa
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STT3B Antibody - NBP2-48657 from Novus Biologicals
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Anti-STT3B antibody produced in rabbit - HPA036448 from Sigma-Aldrich
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anti-STT3B antibody - A008356 from Biobool
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STT3B antibody - C-terminal region (OAAB02299) - OAAB02299 from Aviva Systems Biology
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STT3B, Polyclonal Antibody - MBS7604589 from MyBioSource
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STT3B antibody - DF12327 from Affinity Biosciences
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