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 4X4Z | pdb_00004x4z

Retrofitting antibodies with stabilizing mutations. Herceptin VL mutant F53D.

External Resource: Annotation


Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

ChainsDomain InfoClassFoldSuperfamilyFamilyDomainSpeciesProvenance Source (Version)
Bd4x4zb_ All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin V set domains (antibody variable domain-like) automated matches (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Ad4x4za_ All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin V set domains (antibody variable domain-like) automated matches (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
BPI3_PI4_kinasee4x4zB1 A: alpha arraysX: Restriction endonuclease-likeH: HTHT: winged helix domainF: PI3_PI4_kinaseECOD (v295.2)
API3_PI4_kinasee4x4zA1 A: alpha arraysX: Restriction endonuclease-likeH: HTHT: winged helix domainF: PI3_PI4_kinaseECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
B2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (4.3.0)
A2.60.40.10 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, B
Herceptin VL F66>D V-KAPPA Homo sapiens (human) IGKV1-39*01, IGKV1D-39*01, IGKJ1*01 V-DOMAIN V-KAPPA IG (V-KAPPA) IMGT (202636-0)

SAbDab Antibody Annotation SAbDab Database Homepage

ChainChain ClassChain SubclassChain TypeAntigen Name(s) Provenance Source
A, B
Light ChainIGKV1 Kappa-SAbDab (2026-09-18)