8B6L | pdb_00008b6l

Subtomogram average of the human Sec61-TRAP-OSTA-translocon


Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
CSCOP2B SuperfamilyProtein translocase subunit SecE-like 8098782 3002174 SCOP2B (2022-06-29)
ASCOP2B SuperfamilySecY-like 8098818 3000333 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
ISTT3e8b6lI1 A: alpha bundlesX: STT3/PglB/AglB transmembrane domain (From Topology)H: STT3/PglB/AglB transmembrane domain (From Topology)T: STT3/PglB/AglB transmembrane domainF: STT3ECOD (1.6)
Iarchaeo_STT3_1ste8b6lI2 A: a/b three-layered sandwichesX: STT3/PglB/AglB core domain (From Topology)H: STT3/PglB/AglB core domain (From Topology)T: STT3/PglB/AglB core domainF: archaeo_STT3_1stECOD (1.6)
FF_UNCLASSIFIEDe8b6lF1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: F_UNCLASSIFIEDECOD (1.6)
EF_UNCLASSIFIEDe8b6lE1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: F_UNCLASSIFIEDECOD (1.6)
EF_UNCLASSIFIEDe8b6lE2 A: extended segmentsX: Notch transmembrane helix (From Topology)H: Notch transmembrane helix (From Topology)T: Notch transmembrane helixF: F_UNCLASSIFIEDECOD (1.6)
CSecE_1e8b6lC1 A: extended segmentsX: Preprotein translocase SecE subunit (From Topology)H: Preprotein translocase SecE subunit (From Topology)T: Preprotein translocase SecE subunitF: SecE_1ECOD (1.6)
BSec61_betae8b6lB1 A: extended segmentsX: Sec-beta subunit (From Topology)H: Sec-beta subunit (From Topology)T: Sec-beta subunitF: Sec61_betaECOD (1.6)
KOst4e8b6lK1 A: extended segmentsX: Oligosaccharyltransferase subunit ost4p (From Topology)H: Oligosaccharyltransferase subunit ost4p (From Topology)T: Oligosaccharyltransferase subunit ost4pF: Ost4ECOD (1.6)
ASecYe8b6lA1 A: alpha complex topologyX: Preprotein translocase SecY subunit (From Topology)H: Preprotein translocase SecY subunit (From Topology)T: Preprotein translocase SecY subunitF: SecYECOD (1.6)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF02516Oligosaccharyl transferase STT3, N-terminal (STT3)Oligosaccharyl transferase STT3, N-terminalThis entry consists of the oligosaccharyl transferase STT3 subunit and related proteins. The STT3 subunit is part of the oligosaccharyl transferase (OTase) complex of proteins and is required for its activity [2]. In eukaryotes, OTase transfers a l ...This entry consists of the oligosaccharyl transferase STT3 subunit and related proteins. The STT3 subunit is part of the oligosaccharyl transferase (OTase) complex of proteins and is required for its activity [2]. In eukaryotes, OTase transfers a lipid-linked core-oligosaccharide to selected asparagine residues in the ER [2]. In the archaea STT3 occurs alone, rather than in an OTase complex, and is required for N-glycosylation of asparagines [3-4]. This entry represents the N-terminal domain, consisting of transmembrane helices.
Domain
PF22627AglB core domain (AglB_core-like)AglB core domainThis entry represents the C-terminal core domain of archaeal oligosaccharyltransferase AglB that transfers oligosaccharide chain from a lipid-linked oligosaccharide (LLO) donor to the asparagine residues in the N-glycosylation sequon, Asn-X-Ser/Thr ( ...This entry represents the C-terminal core domain of archaeal oligosaccharyltransferase AglB that transfers oligosaccharide chain from a lipid-linked oligosaccharide (LLO) donor to the asparagine residues in the N-glycosylation sequon, Asn-X-Ser/Thr (X=Pro) [1-5]. In the archaea AlgB, it occurs alone, rather than in complex as the eukaryotic homologue STT3. This domain adopts a mixed alpha/beta fold and contains a highly conserved WWDYG motif that may be of functional relevance.
Domain
PF00584SecE/Sec61-gamma subunits of protein translocation complex (SecE)SecE/Sec61-gamma subunits of protein translocation complex- Family
PF04597Ribophorin I (Ribophorin_I)Ribophorin I- Family
PF03345OST48, N-terminal domain (OST48_N)OST48, N-terminal domainMembers of this entry are involved in asparagine-linked protein glycosylation. In particular, dolichyl-diphosphooligosaccharide-protein glycosyltransferase (DDOST), also known as oligosaccharyltransferase, transfers the high-mannose sugar GlcNAc(2)-M ...Members of this entry are involved in asparagine-linked protein glycosylation. In particular, dolichyl-diphosphooligosaccharide-protein glycosyltransferase (DDOST), also known as oligosaccharyltransferase, transfers the high-mannose sugar GlcNAc(2)-Man(9)-Glc(3) from a dolichol-linked donor to an asparagine acceptor in a consensus Asn-X-Ser/Thr motif. In most eukaryotes, the DDOST complex is composed of three subunits, which in humans are described as a 48kD subunit, ribophorin I, and ribophorin II. However, the yeast DDOST appears to consist of six subunits (alpha, beta, gamma, delta, epsilon, zeta). The yeast beta subunit is a 45kD polypeptide, previously discovered as the Wbp1 protein, with known sequence similarity to the human 48kD subunit and the other orthologues. This is the N-terminal domain of OST48 subunits from animals and plants and the orthologue from yeast Wbp1. This domain is distantly related to the IFT52 N-terminal domain (Pfam:PF23355).
Domain
PF02109DAD family (DAD)DAD family- Family
PF05251Oligosaccharyltransferase subunit 5 (Ost5)Oligosaccharyltransferase subunit 5- Family
PF10215Oligosaccaryltransferase (Ost4)Oligosaccaryltransferase- Family
PF10559Plug domain of Sec61p (Plug_translocon)Plug domain of Sec61pThe Sec61/SecY translocon mediates translocation of proteins across the membrane and integration of membrane proteins into the lipid bilayer. The structure of the translocon revealed a plug domain blocking the pore on the lumenal side.The plug is unl ...The Sec61/SecY translocon mediates translocation of proteins across the membrane and integration of membrane proteins into the lipid bilayer. The structure of the translocon revealed a plug domain blocking the pore on the lumenal side.The plug is unlikely to be important for sealing the translocation pore in yeast but it plays a role in stabilising Sec61p during translocon formation. The domain runs from residues 52-74 [1].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit STT3A
Translocon-associated protein subunit delta- -
Translocon-associated protein subunit gamma-
Translocon-associated protein subunit beta-
Translocon-associated protein subunit alpha-
Signal peptide mix---
Protein transport protein Sec61 subunit gamma
Protein transport protein Sec61 subunit beta
Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit 2-
Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit 1
Dolichyl-diphosphooligosaccharide--protein glycosyltransferase 48 kDa subunit
Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit DAD1
Transmembrane protein 258
Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit 4-
Oligosaccharyltransferase complex subunit OSTC
Protein transport protein Sec61 subunit alpha isoform 1

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
IPR003674Oligosaccharyl transferase, STT3 subunitFamily
IPR048307Oligosaccharyl transferase STT3, N-terminal domainDomain
IPR054479AglB-like, core domainDomain
IPR008855Translocon-associatedFamily
IPR009779Translocon-associated protein subunit gammaFamily
IPR008856Translocon-associated protein subunit betaFamily
IPR005595Translocon-associated protein (TRAP), alpha subunitFamily
IPR008158Protein translocase SEC61 complex, gamma subunitFamily
IPR001901Protein translocase complex, SecE/Sec61-gamma subunitFamily
IPR023391Protein translocase SecE domain superfamilyHomologous Superfamily
IPR030671Protein transport Sec61-beta/SbhFamily
IPR016482Protein transport protein SecG/Sec61-beta/SbhFamily
IPR055375Ribophorin II, second domainDomain
IPR055373Ribophorin II, N-terminal domainDomain
IPR056790Ribophorin II, C-terminal domainDomain
IPR008814Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit Swp1Family
IPR055374Ribophorin II, third domainDomain
IPR007676Ribophorin IFamily
IPR055459OST48, middle domainDomain
IPR005013Dolichyl-diphosphooligosaccharide--protein glycosyltransferase 48kDa subunitFamily
IPR055457OST48, N-terminal domainDomain
IPR003038DAD/Ost2Family
IPR007915Oligosaccharyltransferase complex subunitFamily
IPR051307Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit 4Family
IPR018943OligosaccaryltransferaseFamily
IPR036330Oligosaccharyltransferase subunit ost4p superfamilyHomologous Superfamily
IPR021149Oligosaccharyl transferase complex, subunit OST3/OST6Family
IPR042416Oligosaccharyltransferase complex subunit OSTCFamily
IPR002208SecY/SEC61-alpha familyFamily
IPR030659SecY conserved siteConserved Site
IPR023201SecY domain superfamilyHomologous Superfamily
IPR019561Translocon Sec61/SecY, plug domainDomain

Pharos: Disease Associations Pharos Homepage Annotation

ChainsDrug Target  Associated Disease
PharosP46977
PharosP51571
PharosQ9UNL2
PharosP43308
PharosP43307
PharosP60059
PharosP60468
PharosP04844
PharosP04843
PharosP39656
PharosP61803
PharosP61165
PharosP0C6T2
PharosQ9NRP0
PharosP61619

Membrane Protein Annotation: OPM OPM Database Homepage

ChainsExternal LinkTypeClassSuperfamilyFamily
A, B, C, E, F
OPMTransmembraneAlpha-helical polytopicGlycosyl transferase GT-C superfamilyOligosaccharyltransferase

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

ChainsExternal LinkComment
A, B, C, E, F
PDBTMAnnotated as membrane protein by PDBTM