Structure of anti-HIV trimer apex antibody PGT143
Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage
Domain Annotation: ECOD Classification ECOD Database Homepage
| Chains | Family Name | Domain Identifier | Architecture | Possible Homology | Homology | Topology | Family | Provenance Source (Version) |
|---|---|---|---|---|---|---|---|---|
| D [auth L] | Glyco_hydro_77 | e5uxqL1 | A: a/b three-layered sandwiches | X: HAD domain-like | H: beta-propeller | T: 8-bladed | F: Glyco_hydro_77 | ECOD (v294.1) |
| B | Glyco_hydro_77 | e5uxqB1 | A: a/b three-layered sandwiches | X: HAD domain-like | H: beta-propeller | T: 8-bladed | F: Glyco_hydro_77 | ECOD (v294.1) |
| C [auth H] | Glyco_hydro_77 | e5uxqH1 | A: a/b three-layered sandwiches | X: HAD domain-like | H: beta-propeller | T: 8-bladed | F: Glyco_hydro_77 | ECOD (v294.1) |
| A | Glyco_hydro_77 | e5uxqA1 | A: a/b three-layered sandwiches | X: HAD domain-like | H: beta-propeller | T: 8-bladed | F: Glyco_hydro_77 | ECOD (v294.1) |
Domain Annotation: CATH CATH Database Homepage
| Chain | Domain | Class | Architecture | Topology | Homology | Provenance Source (Version) |
|---|---|---|---|---|---|---|
| D [auth L] | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (4.3.0) |
| B | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (4.3.0) |
| C [auth H] | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (4.3.0) |
| A | 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, D [auth L] | Fab PGT143 | L-KAPPA | Homo sapiens (human) | IGKV2-28*01, IGKV2D-28*01, IGKJ2*02, IGKC*01 | V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA | IG | FAB-GAMMA-1_KAPPA | IMGT (202615-0) |
| A, C [auth H] | Fab PGT143 | VH-CH1 | Homo sapiens (human) | IGHV1-2*02, IGHV1-8*01, IGHV1-8*02, IGHV1-8*03, IGHJ3*01, 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 (202615-0) |
SAbDab Antibody Annotation SAbDab Database Homepage
| Chain | Chain Class | Chain Subclass | Chain Type | Antigen Name(s) | Provenance Source |
|---|---|---|---|---|---|
| B, D [auth L] | Light Chain | IGKV2 | Kappa | - | SAbDab (2026-04-24) |
| A, C [auth H] | Heavy Chain | IGHV1 | - | - | SAbDab (2026-04-24) |














