2XKN | pdb_00002xkn

Crystal structure of the Fab fragment of the anti-EGFR antibody 7A7


Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
ALysine_decarboxe2xknA1 A: alpha bundlesX: Thioredoxin-likeH: Thioredoxin-likeT: Thioredoxin-likeF: Lysine_decarboxECOD (develop294)
CYjeF_Ne2xknC1 A: alpha bundlesX: Lipocalins/StreptavidinH: Zn-dependent exopeptidasesT: Zn-dependent exopeptidasesF: YjeF_NECOD (develop294)
DYjeF_Ne2xknD1 A: alpha bundlesX: Lipocalins/StreptavidinH: Zn-dependent exopeptidasesT: Zn-dependent exopeptidasesF: YjeF_NECOD (develop294)
BLysine_decarboxe2xknB1 A: alpha bundlesX: Thioredoxin-likeH: Thioredoxin-likeT: Thioredoxin-likeF: Lysine_decarboxECOD (develop294)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (4.3.0)
C2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (4.3.0)
D2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (4.3.0)
B2.60.40.10 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
A, C
Fab 7A7, anti-EGFR L-KAPPA Mus musculus (house mouse) IGKV10-96*01, IGKJ1*01, IGKC*01, IGKC*02 V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA IG FAB-GAMMA-2A_KAPPA IMGT (202610-0)
B, D
Fab 7A7, anti-EGFR VH-CH1 Mus musculus (house mouse) IGHV5-9-1*01, IGHJ3*01, IGHG2A*01, IGHG2A*02 V-DOMAIN VH, C-DOMAIN CH1 IG FAB-GAMMA-2A_KAPPA IMGT (202610-0)

SAbDab Antibody Annotation SAbDab Database Homepage

ChainChain ClassChain SubclassChain TypeAntigen Name(s) Provenance Source
A, C
Light ChainIGKV10 Kappa-SAbDab (2026-03-20)
B, D
Heavy ChainIGHV5 --SAbDab (2026-03-20)