Crystal structure of Human anti-HIV-1 broadly neutralizing antibody 3BC176 Fab
Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage
| Chains | Domain Info | Class | Fold | Superfamily | Family | Domain | Species | Provenance Source (Version) |
|---|---|---|---|---|---|---|---|---|
| B [auth L] | d5awnl2 | All beta proteins | Immunoglobulin-like beta-sandwich | Immunoglobulin | C1 set domains (antibody constant domain-like) | automated matches | (Homo sapiens ) [TaxId: 9606 ], | SCOPe (2.08) |
| B [auth L] | d5awnl1 | All beta proteins | Immunoglobulin-like beta-sandwich | Immunoglobulin | automated matches | automated matches | (Homo sapiens ) [TaxId: 9606 ], | SCOPe (2.08) |
| A [auth H] | d5awnh_ | All beta proteins | Immunoglobulin-like beta-sandwich | Immunoglobulin | automated matches | automated matches | (Homo sapiens ) [TaxId: 9606 ], | SCOPe (2.08) |
Domain Annotation: ECOD Classification ECOD Database Homepage
| Chains | Family Name | Domain Identifier | Architecture | Possible Homology | Homology | Topology | Family | Provenance Source (Version) |
|---|---|---|---|---|---|---|---|---|
| B [auth L] | CDP-OH_P_transf | e5awnL1 | A: beta barrels | X: P-loop domains-like | H: Rubredoxin-related | T: Rubredoxin-related | F: CDP-OH_P_transf | ECOD (v294.2) |
| A [auth H] | CDP-OH_P_transf | e5awnH2 | A: beta barrels | X: P-loop domains-like | H: Rubredoxin-related | T: Rubredoxin-related | F: CDP-OH_P_transf | ECOD (v294.2) |
| A [auth H] | EF-hand_1, EF-hand_6, EF-hand_7 | e5awnH3 | A: beta barrels | X: Lipocalins/Streptavidin | H: SAM/DNA-glycosylase | T: SAM domain-like | F: EF-hand_1, EF-hand_6, EF-hand_7 | ECOD (v294.2) |
Domain Annotation: CATH CATH Database Homepage
| Chain | Domain | Class | Architecture | Topology | Homology | Provenance Source (Version) |
|---|---|---|---|---|---|---|
| B [auth L] | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (4.3.0) |
| A [auth H] | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (4.3.0) |
IMGT Antibody Annotation IMGT Database Homepage
| Chain | Protein Name | Description | Organism Name | Gene Allele Name(s) | Domain Name(s) | Receptor Type | Receptor Description | Provenance Source |
|---|---|---|---|---|---|---|---|---|
| B [auth L] | 3BC176 mAb, anti-gp120-gp41 [HIV-1], broadly neutralizing | L-LAMBDA | Homo sapiens (human) | IGLV2-23*02, IGLV2-23*03, TRAJ50*01, IGLC1*02, IGLC2*01, IGLC2*02, IGLC3*04 | V-DOMAIN V-LAMBDA, C-DOMAIN C-LAMBDA | IG | FAB-GAMMA-1_LAMBDA | IMGT (202617-0) |
| A [auth H] | 3BC176 mAb, anti-gp120-gp41 [HIV-1], broadly neutralizing | VH-CH1 | Homo sapiens (human) | IGHV1-2*02, IGHV1-46*01, IGHV1-46*02, IGHV1-46*03, IGHJ2*01, IGHG1*01, IGHG1*02, IGHG1*04, IGHG1*05 | V-DOMAIN VH, C-DOMAIN CH1 | IG | FAB-GAMMA-1_LAMBDA | IMGT (202617-0) |
SAbDab Antibody Annotation SAbDab Database Homepage
| Chain | Chain Class | Chain Subclass | Chain Type | Antigen Name(s) | Provenance Source |
|---|---|---|---|---|---|
| B [auth L] | Light Chain | IGLV2 | Lambda | - | SAbDab (2026-05-08) |
