Crystal structure of human Fab CAP256-VRC26.03, a potent V1V2-directed HIV-1 neutralizing antibody
Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage
| Chains | Domain Info | Class | Fold | Superfamily | Family | Domain | Species | Provenance Source (Version) |
|---|---|---|---|---|---|---|---|---|
| B [auth L] | d4od1l2 | All beta proteins | Immunoglobulin-like beta-sandwich | Immunoglobulin | C1 set domains (antibody constant domain-like) | automated matches | human (Homo sapiens ) [TaxId: 9606 ], | SCOPe (2.08) |
| B [auth L] | d4od1l1 | All beta proteins | Immunoglobulin-like beta-sandwich | Immunoglobulin | automated matches | automated matches | human (Homo sapiens ) [TaxId: 9606 ], | SCOPe (2.08) |
| A [auth H] | d4od1h_ | All beta proteins | Immunoglobulin-like beta-sandwich | Immunoglobulin | V set domains (antibody variable domain-like) | automated matches | human (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] | AA_kinase | e4od1L2 | A: a/b three-layered sandwiches | X: Repetitive alpha hairpins | H: alpha/beta-Hammerhead/Barrel-sandwich hybrid | T: Nicotinate/Quinolinate PRTase N-terminal domain-like | F: AA_kinase | ECOD (v294.1) |
| A [auth H] | BT_3987-like_N | e4od1H3 | A: a/b three-layered sandwiches | X: Fusion glycoprotein F2 | H: MoeA-I/Ornithine decarboxylase-C/Reverse ferredoxin-like domain in RNA-polymerase | T: MoeA-I/Ornithine decarboxylase-C/Reverse ferredoxin-like domain in RNA-polymerase | F: BT_3987-like_N | ECOD (v294.1) |
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] | CAP256-VRC26.03 mAb, anti-gp120 [HIV-1], neutralizing | L-LAMBDA | Homo sapiens (human) | IGLV1-51*02, IGLJ1*01, IGLC1*02, IGLC2*01, IGLC2*02, IGLC3*04 | V-DOMAIN V-LAMBDA, C-DOMAIN C-LAMBDA | IG | FAB-GAMMA-1_LAMBDA | IMGT (202615-0) |
| A [auth H] | CAP256-VRC26.03 mAb, anti-gp120 [HIV-1], neutralizing | VH-CH1 | Homo sapiens (human) | IGHV3-30*18, IGHJ3*01, IGHJ3*02, IGHJ5*01, IGHG1*03 | V-DOMAIN VH, C-DOMAIN CH1 | IG | FAB-GAMMA-1_LAMBDA | IMGT (202615-0) |
SAbDab Antibody Annotation SAbDab Database Homepage
| Chain | Chain Class | Chain Subclass | Chain Type | Antigen Name(s) | Provenance Source |
|---|---|---|---|---|---|
| B [auth L] | Light Chain | IGLV1 | Lambda | - | SAbDab (2026-04-24) |
| A [auth H] | Heavy Chain | IGHV3 | - | - | SAbDab (2026-04-24) |
Protein Modification Annotation
| Modified Residue(s) | ||
|---|---|---|
| Chain | Residue(s) | Description |
| A [auth H] | TYS | Parent Component: TYR : AA0172 : O4'-sulfo-L-tyrosine MOD:00181 |
