3TCL | pdb_00003tcl

Crystal Structure of HIV-1 Neutralizing Antibody CH04


Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
D [auth B]e3tclB1 A: Alpha-beta plaitsX: Phage tail protein-likeH: Transmembrane protein 14AT: PK_Tyr_Ser-ThrF:ECOD (20:10:01)
B [auth L]e3tclL1 A: OB-foldX: RIFT-relatedH: Phage tail proteinsT: PTPlike_phytaseF:ECOD (20:10:01)
C [auth A]e3tclA1 A: Alpha-beta plaitsX: Phage tail protein-likeH: Transmembrane protein 14AT: PK_Tyr_Ser-ThrF:ECOD (20:10:01)
A [auth H]e3tclH1 A: Alpha-beta plaitsX: Phage tail protein-likeH: Transmembrane protein 14AT: PK_Tyr_Ser-ThrF:ECOD (20:10:01)

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)
B [auth L]2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (4.3.0)
C [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
B [auth L],
D [auth B]
CH04 mAb, anti-gp120 [HIV-1], neutralizing L-KAPPA Homo sapiens (human) IGKV3-20*01, IGKJ1*01, IGKJ2*01, IGKC*01 V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA IG FAB-GAMMA-1_KAPPA IMGT (202609-0)
A [auth H],
C [auth A]
CH04 mAb, anti-gp120 [HIV-1], neutralizing VH-CH1 Homo sapiens (human) IGHV3-20*01, IGHJ2*01, IGHG1*01, IGHG1*02, IGHG1*04 V-DOMAIN VH, C-DOMAIN CH1 IG FAB-GAMMA-1_KAPPA IMGT (202609-0)

SAbDab Antibody Annotation SAbDab Database Homepage

ChainChain ClassChain SubclassChain TypeAntigen Name(s) Provenance Source
B [auth L],
D [auth B]
Light ChainIGKV3 Kappa-SAbDab (2026-03-13)
A [auth H],
C [auth A]
Heavy ChainIGHV3 --SAbDab (2026-03-13)