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 5IGX | pdb_00005igx

Crystal structure of NIH45-46 Fab germline precursor in complex with 426c.TM1deltaV1-3 gp120

External Resource: Annotation


Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
C [auth L]BAHe5igxL1 A: alpha arraysX: Alpha-beta plaitsH: Pseudouridine synthaseT: Pseudouridine synthaseF: BAHECOD (v295.2)
B [auth H]BAHe5igxH1 A: alpha arraysX: Alpha-beta plaitsH: Pseudouridine synthaseT: Pseudouridine synthaseF: BAHECOD (v295.2)
A [auth G]Ribosomal_S5_Ce5igxG1 A: alpha arraysX: Nat/IvyH: Acyl-CoA N-acyltransferases (Nat)T: Acyl-CoA N-acyltransferases (Nat)F: Ribosomal_S5_CECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
C [auth L]2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (4.3.0)
B [auth H]2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (4.3.0)
A [auth G]2.170.40.20 Mainly Beta Beta Complex HIV Envelope Protein Gp120 Chain GCATH (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]NIH45-46 mAb, anti-gp120 [HIV-1] L-KAPPA Homo sapiens (human) IGKV3-11*01, IGKJ2*01, IGKJ2*02, IGKJ2*03, IGKJ2*04, IGKC*01 V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA IG FAB-GAMMA-1_KAPPA IMGT (202640-0)
B [auth H]NIH45-46 mAb, anti-gp120 [HIV-1] VH-CH1 Homo sapiens (human) IGHV1-2*02, IGHJ1*01, IGHG1*03 V-DOMAIN VH, C-DOMAIN CH1 IG FAB-GAMMA-1_KAPPA IMGT (202640-0)

SAbDab Antibody Annotation SAbDab Database Homepage

ChainChain ClassChain SubclassChain TypeAntigen Name(s) Provenance Source
C [auth L]Light ChainIGKV3 Kappa426c.tm1deltav1-3 gp120SAbDab (2026-10-16)
B [auth H]Heavy ChainIGHV1 -426c.tm1deltav1-3 gp120SAbDab (2026-10-16)