7K8Q | pdb_00007k8q

Crystal structure of an anti-SARS-CoV-2 human neutralizing antibody Fab fragment, C121

External Resource: Annotation


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

ChainsDomain InfoClassFoldSuperfamilyFamilyDomainSpeciesProvenance Source (Version)
B [auth L]d7k8ql2 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin C1 set domains (antibody constant domain-like) automated matches Human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
B [auth L]d7k8ql1 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin automated matches automated matches Human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
A [auth H]e7k8qH1 A: Family A G protein-coupled receptor-likeX: Family A G protein-coupled receptor-likeH: Family A G protein-coupled receptor-likeT: C2F:ECOD (20:10:01)
B [auth L]e7k8qL1 A: Family A G protein-coupled receptor-likeX: Family A G protein-coupled receptor-likeH: Family A G protein-coupled receptor-likeT: C2F:ECOD (20:10:01)

Domain Annotation: CATH CATH Database Homepage

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

IMGT Antibody Annotation IMGT Database Homepage

ChainProtein NameDescriptionOrganism NameGene Allele Name(s)Domain Name(s)Receptor TypeReceptor DescriptionProvenance Source
A [auth H]Fab C121, anti-SARS-CoV-2, neutralizing VH-CH1 Homo sapiens (human) IGHV1-2*02, IGHJ6*01, IGHG1*03, IGHG1*08, IGHG1*06 V-DOMAIN VH, C-DOMAIN CH1 IG FAB-GAMMA-1_KAPPA IMGT (202609-0)
B [auth L]Fab C121, anti-SARS-CoV-2, neutralizing L-LAMBDA Homo sapiens (human) IGLV2-23*01, IGLJ2*01, IGLJ3*02, IGLJ1*01, IGLJ3*01, IGLC2*01, IGLC2*02, IGLC3*04 V-DOMAIN V-LAMBDA, C-DOMAIN C-LAMBDA IG FAB-GAMMA-1_KAPPA IMGT (202609-0)

SAbDab Antibody Annotation SAbDab Database Homepage

ChainChain ClassChain SubclassChain TypeAntigen Name(s) Provenance Source
A [auth H]Heavy ChainIGHV1 --SAbDab (2026-03-13)
B [auth L]Light ChainIGLV2 Lambda-SAbDab (2026-03-13)