4JY6 | pdb_00004jy6

Crystal structure of human Fab PGT123, a broadly reactive and potent HIV-1 neutralizing antibody

External Resource: Annotation


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

ChainsDomain InfoClassFoldSuperfamilyFamilyDomainSpeciesProvenance Source (Version)
Dd4jy6d_ All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin automated matches automated matches human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Bd4jy6b_ All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin automated matches automated matches human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Cd4jy6c1 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin automated matches automated matches human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Ad4jy6a1 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)
De4jy6D1 A: alpha bundlesX: HTHH: HTHT: Three-helical HTHF:ECOD (develop294)
BPGM_PMM_IVe4jy6B1 A: alpha bundlesX: all-alpha NTP pyrophosphatasesH: all-alpha NTP pyrophosphatasesT: MazG-relatedF: PGM_PMM_IVECOD (develop294)
CIg_2e4jy6C3 A: alpha bundlesX: Subtilisin-likeH: Subtilisin-likeT: Subtilisin-likeF: Ig_2ECOD (develop294)
AIg_2e4jy6A3 A: alpha bundlesX: Subtilisin-likeH: Subtilisin-likeT: Subtilisin-likeF: Ig_2ECOD (develop294)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
D2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (4.3.0)
B2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (4.3.0)
C2.60.40.10 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
B, D
PGT123 mAb, anti-gp120 [HIV-1], broadly neutralizing VH-CH1 Homo sapiens (human) IGHV4-59*01, IGHV4-59*08, IGHJ3*01, IGHG1*03 V-DOMAIN VH, C-DOMAIN CH1 IG FAB-GAMMA-1_LAMBDA IMGT (202610-0)
A, C
PGT123 mAb, anti-gp120 [HIV-1], broadly neutralizing L-LAMBDA Homo sapiens (human) IGLV3-21*01, IGLJ3*02, IGLC3*03 V-DOMAIN V-LAMBDA, C-DOMAIN C-LAMBDA IG FAB-GAMMA-1_LAMBDA IMGT (202610-0)

SAbDab Antibody Annotation SAbDab Database Homepage

ChainChain ClassChain SubclassChain TypeAntigen Name(s) Provenance Source
B, D
Heavy ChainIGHV4 --SAbDab (2026-03-20)