Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
D [auth M]SCOP2B SuperfamilyImmunoglobulin (Ig) domain-like 8091519 3000071 SCOP2B (2022-06-29)
B [auth H]SCOP2B SuperfamilyImmunoglobulin (Ig) domain-like 8091519 3000071 SCOP2B (2022-06-29)
A [auth L]SCOP2B SuperfamilyImmunoglobulin (Ig) domain-like 8091527 3000071 SCOP2B (2022-06-29)
C [auth K]SCOP2B SuperfamilyImmunoglobulin (Ig) domain-like 8091527 3000071 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
D [auth M]e6n35M1 A: L-aspartase middle domain-likeX: L-aspartase middle domain-likeH: L-aspartase middle domain-likeT: MetallophosF:ECOD (20:10:01)
B [auth H]e6n35H1 A: L-aspartase middle domain-likeX: L-aspartase middle domain-likeH: L-aspartase middle domain-likeT: MetallophosF:ECOD (20:10:01)
A [auth L]e6n35L1 A: L-aspartase middle domain-likeX: L-aspartase middle domain-likeH: L-aspartase middle domain-likeT: MetallophosF:ECOD (20:10:01)
C [auth K]e6n35K1 A: L-aspartase middle domain-likeX: L-aspartase middle domain-likeH: L-aspartase middle domain-likeT: MetallophosF:ECOD (20:10:01)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
D [auth M]2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (utative)
B [auth H]2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (utative)
A [auth L]2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (4.3.0)
C [auth K]2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (4.3.0)

IMGT Antibody Annotation IMGT Database Homepage

ChainProtein NameDescriptionOrganism NameGene Allele Name(s)Domain Name(s)Receptor TypeReceptor DescriptionProvenance Source
B [auth H],
D [auth M]
Fab 2G12 VH-CH1 Homo sapiens (human) IGHV3-21*01, IGHV3-21*02, IGHV3-21*04, IGHV3-21*03, IGHJ2*01, IGHJ4*01, IGHJ5*01, IGHJ5*02, IGHJ4*02, IGHJ4*03, IGHG1*01, IGHG1*02, IGHG1*04, IGHG1*05, IGHG1*12, IGHG1*14, IGHG1*13, IGHG1*09, IGHG1*10, IGHG1*07, IGHG1*11 V-DOMAIN VH, C-DOMAIN CH1 IG FAB-GAMMA-1_KAPPA IMGT (202609-0)
A [auth L],
C [auth K]
Fab 2G12 L-KAPPA Homo sapiens (human) IGKV1-5*03, IGKJ1*01, IGKJ5*01, IGKC*01 V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA IG FAB-GAMMA-1_KAPPA IMGT (202609-0)

SAbDab Antibody Annotation SAbDab Database Homepage

ChainChain ClassChain SubclassChain TypeAntigen Name(s) Provenance Source
A [auth L],
C [auth K]
Light ChainIGKV1 Kappapolysaccharide, ALPHA-D-MANNOSESAbDab (2026-03-13)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
B [auth H],
D [auth M]
PF07654Immunoglobulin C1-set domain (C1-set)Immunoglobulin C1-set domainDomain
A [auth L],
C [auth K]
PF07654Immunoglobulin C1-set domain (C1-set)Immunoglobulin C1-set domainDomain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
B [auth H],
D [auth M]
Fab 2G12 heavy chain
A [auth L],
C [auth K]
Fab 2G12 light chain