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 6QX4 | pdb_00006qx4

Structure of the Bacillus anthracis Sap S-layer assembly domain

External Resource: Annotation


Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
F [auth H]Ycf9e6qx4H1 A: alpha arraysX: Ten stranded beta/alpha barrelH: Ten stranded beta/alpha barrelT: Ten stranded beta/alpha barrelF: Ycf9ECOD (v295.2)
DCsx1_CARFe6qx4D1 A: alpha arraysX: Ten stranded beta/alpha barrelH: Ten stranded beta/alpha barrelT: Ten stranded beta/alpha barrelF: Csx1_CARFECOD (v295.2)
EYcf9e6qx4E1 A: alpha arraysX: Ten stranded beta/alpha barrelH: Ten stranded beta/alpha barrelT: Ten stranded beta/alpha barrelF: Ycf9ECOD (v295.2)
CCsx1_CARFe6qx4C1 A: alpha arraysX: Ten stranded beta/alpha barrelH: Ten stranded beta/alpha barrelT: Ten stranded beta/alpha barrelF: Csx1_CARFECOD (v295.2)
BYcf9e6qx4B1 A: alpha arraysX: Ten stranded beta/alpha barrelH: Ten stranded beta/alpha barrelT: Ten stranded beta/alpha barrelF: Ycf9ECOD (v295.2)
ACsx1_CARFe6qx4A1 A: alpha arraysX: Ten stranded beta/alpha barrelH: Ten stranded beta/alpha barrelT: Ten stranded beta/alpha barrelF: Csx1_CARFECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
B2.60.40.1220 Mainly Beta Sandwich Immunoglobulin-like CATH (utative)
A2.60.40.1220 Mainly Beta Sandwich Immunoglobulin-like CATH (utative)

SAbDab Antibody Annotation SAbDab Database Homepage

ChainChain ClassChain SubclassChain TypeAntigen Name(s) Provenance Source
D,
F [auth H]		Heavy ChainIGHV3 -s-layer protein sapSAbDab (2026-09-25)
C, E
Heavy ChainIGHV1 -s-layer protein sapSAbDab (2026-09-25)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B
PF02368Bacterial Ig-like domain (group 2) (Big_2)Bacterial Ig-like domain (group 2)This family consists of bacterial domains with an Ig-like fold. Members of this family are found in bacterial and phage surface proteins such as intimins. Domain
A, B
PF13205Bacterial Ig-like domain (Big_5)Bacterial Ig-like domainDomain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
D,
F [auth H]		Nanobody NbAF694---
C, E
Nanobody NbAF683---
A, B
S-layer protein sap- -

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
A, B
IPR051465Cell_Envelope_Struct_CompUnknown
A, B
IPR014755Copper resistance protein CopC/internalin, immunoglobulin-likeHomologous Superfamily
A, B
IPR032812SbsA, Ig-like domainDomain
A, B
IPR003343Bacterial Ig-like domain, group 2Domain
A, B
IPR008964Invasin/intimin cell-adhesion fragmentsHomologous Superfamily
A, B
IPR001119S-layer homology domainDomain