Crystal Structure of HIV-1 Neutralizing Antibody m66.6


Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
D [auth B]MreCe4nrzB1 A: beta barrelsX: DEATH domainH: HTHT: winged helix domainF: MreCECOD (v294.2)
C [auth L]Acylphosphatasee4nrzL1 A: beta barrelsX: FAD-linked reductases, C-terminal domain-likeH: FAD-linked reductases-CT: FAD-linked reductases-CF: AcylphosphataseECOD (v294.2)
B [auth A]MreCe4nrzA1 A: beta barrelsX: DEATH domainH: HTHT: winged helix domainF: MreCECOD (v294.2)
A [auth H]MreCe4nrzH1 A: beta barrelsX: DEATH domainH: HTHT: winged helix domainF: MreCECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
D [auth B]2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (4.3.0)
C [auth L]2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (4.3.0)
B [auth A]2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (4.3.0)
A [auth H]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
C [auth L],
D [auth B]
N-terminal region [HIV-1], neutralizing L-KAPPA Homo sapiens (human) IGKV1-39*01, IGKV1D-39*01, IGKJ3*01, IGKC*01 V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA IG FAB-GAMMA-1_KAPPA IMGT (202618-0)
A [auth H],
B [auth A]
N-terminal region [HIV-1], neutralizing VH-CH1 Homo sapiens (human) IGHV5-51*01, IGHV5-51*03, IGHJ6*01, IGHJ6*02, IGHG1*01, IGHG1*02, IGHG1*04 V-DOMAIN VH, C-DOMAIN CH1 IG FAB-GAMMA-1_KAPPA IMGT (202618-0)

SAbDab Antibody Annotation SAbDab Database Homepage

ChainChain ClassChain SubclassChain TypeAntigen Name(s) Provenance Source
C [auth L],
D [auth B]
Light ChainIGKV1 Kappa-SAbDab (2026-05-15)
A [auth H],
B [auth A]
Heavy ChainIGHV5 --SAbDab (2026-05-15)