Crystal structure of the unbound Fab fragment of the human HIV-1 neutralizing antibody PGZL1.
Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage
| Chains | Domain Info | Class | Fold | Superfamily | Family | Domain | Species | Provenance Source (Version) |
|---|---|---|---|---|---|---|---|---|
| B [auth H] | d6o3dh_ | All beta proteins | Immunoglobulin-like beta-sandwich | Immunoglobulin | automated matches | automated matches | (Homo sapiens ) [TaxId: 9606 ], | SCOPe (2.08) |
| A [auth L] | d6o3dl2 | All beta proteins | Immunoglobulin-like beta-sandwich | Immunoglobulin | C1 set domains (antibody constant domain-like) | automated matches | (Homo sapiens ) [TaxId: 9606 ], | SCOPe (2.08) |
| A [auth L] | d6o3dl1 | 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 H] | ATP-synt | e6o3dH1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: DUF1107-like | T: DUF1107-like | F: ATP-synt | ECOD (v294.1) |
| A [auth L] | ATP-synt | e6o3dL1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: DUF1107-like | T: DUF1107-like | F: ATP-synt | ECOD (v294.1) |
Domain Annotation: CATH CATH Database Homepage
| Chain | Domain | Class | Architecture | Topology | Homology | Provenance Source (Version) |
|---|---|---|---|---|---|---|
| B [auth H] | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (utative) |
| A [auth L] | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (utative) |
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 H] | Fab PGZL1, anti-gp41 [HIV-1], neutralizing | VH-CH1 | Homo sapiens (human) | IGHV1-69*17, IGHJ3*01, IGHJ3*02, IGHG1*01, IGHG1*02, IGHG1*04, IGHG1*05, IGHG1*12, IGHG1*14, IGHG1*13, IGHG1*09, IGHG1*10, IGHG1*07, IGHG1*11 | V-DOMAIN VH, C-DOMAIN CH1 | IG | FAB-GAMMA-1_KAPPA | IMGT (202611-0) |
| A [auth L] | Fab PGZL1, anti-gp41 [HIV-1], neutralizing | L-KAPPA | Homo sapiens (human) | IGKV3-20*01, IGKJ5*01, IGKC*01 | V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA | IG | FAB-GAMMA-1_KAPPA | IMGT (202611-0) |
SAbDab Antibody Annotation SAbDab Database Homepage
| Chain | Chain Class | Chain Subclass | Chain Type | Antigen Name(s) | Provenance Source |
|---|---|---|---|---|---|
| B [auth H] | Heavy Chain | IGHV1 | - | - | SAbDab (2026-03-27) |
| A [auth L] | Light Chain | IGKV3 | Kappa | - | SAbDab (2026-03-27) |
