Crystal structure of 4493 Fab in complex with circumsporozoite protein DND and anti-kappa VHH domain
Domain Annotation: ECOD Classification ECOD Database Homepage
| Chains | Family Name | Domain Identifier | Architecture | Possible Homology | Homology | Topology | Family | Provenance Source (Version) |
|---|---|---|---|---|---|---|---|---|
| P [auth N] | e6o2bN1 | A: Family A G protein-coupled receptor-like | X: Family A G protein-coupled receptor-like | H: Family A G protein-coupled receptor-like | T: Rhodanese | F: | ECOD (20:10:01) | |
| K [auth M] | e6o2bM1 | A: Family A G protein-coupled receptor-like | X: Family A G protein-coupled receptor-like | H: Family A G protein-coupled receptor-like | T: Rhodanese | F: | ECOD (20:10:01) | |
| J | e6o2bJ1 | A: Family A G protein-coupled receptor-like | X: Family A G protein-coupled receptor-like | H: Family A G protein-coupled receptor-like | T: Rhodanese | F: | ECOD (20:10:01) | |
| I [auth E] | e6o2bE1 | A: Family A G protein-coupled receptor-like | X: Family A G protein-coupled receptor-like | H: Family A G protein-coupled receptor-like | T: Rhodanese | F: | ECOD (20:10:01) | |
| H [auth P] | e6o2bP1 | A: Family A G protein-coupled receptor-like | X: Family A G protein-coupled receptor-like | H: Family A G protein-coupled receptor-like | T: Rhodanese | F: | ECOD (20:10:01) | |
| F [auth I] | e6o2bI1 | A: Family A G protein-coupled receptor-like | X: Family A G protein-coupled receptor-like | H: Family A G protein-coupled receptor-like | T: Rhodanese | F: | ECOD (20:10:01) | |
| D | e6o2bD1 | A: Family A G protein-coupled receptor-like | X: Family A G protein-coupled receptor-like | H: Family A G protein-coupled receptor-like | T: Rhodanese | F: | ECOD (20:10:01) | |
| B | e6o2bB1 | A: Family A G protein-coupled receptor-like | X: Family A G protein-coupled receptor-like | H: Family A G protein-coupled receptor-like | T: Rhodanese | F: | ECOD (20:10:01) | |
| G [auth O] | e6o2bO1 | A: Family A G protein-coupled receptor-like | X: Family A G protein-coupled receptor-like | H: Family A G protein-coupled receptor-like | T: Rhodanese | F: | ECOD (20:10:01) | |
| E [auth H] | e6o2bH1 | A: Family A G protein-coupled receptor-like | X: Family A G protein-coupled receptor-like | H: Family A G protein-coupled receptor-like | T: Rhodanese | F: | ECOD (20:10:01) | |
| C | e6o2bC1 | A: Family A G protein-coupled receptor-like | X: Family A G protein-coupled receptor-like | H: Family A G protein-coupled receptor-like | T: Rhodanese | F: | ECOD (20:10:01) | |
| A | e6o2bA1 | A: Family A G protein-coupled receptor-like | X: Family A G protein-coupled receptor-like | H: Family A G protein-coupled receptor-like | T: Rhodanese | F: | ECOD (20:10:01) |
Domain Annotation: CATH CATH Database Homepage
| Chain | Domain | Class | Architecture | Topology | Homology | Provenance Source (Version) |
|---|---|---|---|---|---|---|
| G [auth O] | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (utative) |
| E [auth H] | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (utative) |
| C | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (utative) |
| A | 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, D, F [auth I], H [auth P] | Fab 4493, anti-PfCSP | L-KAPPA | Homo sapiens (human) | IGKV3-20*01, IGKJ1*01, IGKC*01 | V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA | IG | FAB-GAMMA-1_KAPPA | IMGT (202609-0) |
| A, C, E [auth H], G [auth O] | Fab 4493, anti-PfCSP | VH-CH1 | Homo sapiens (human) | IGHV3-49*04, IGHJ4*01, IGHJ4*02, IGHJ4*03, 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 (202609-0) |
SAbDab Antibody Annotation SAbDab Database Homepage
| Chain | Chain Class | Chain Subclass | Chain Type | Antigen Name(s) | Provenance Source |
|---|---|---|---|---|---|
| B, D, F [auth I], H [auth P] | Light Chain | IGKV3 | Kappa | circumsporozoite protein, circumsporozoite protein | anti-kappa vhh domain | anti-kappa vhh domain, circumsporozoite protein | anti-kappa vhh domain | SAbDab (2026-03-13) |
| A, C, E [auth H], G [auth O] | Heavy Chain | IGHV3 | - | circumsporozoite protein, circumsporozoite protein | anti-kappa vhh domain | anti-kappa vhh domain, circumsporozoite protein | anti-kappa vhh domain | SAbDab (2026-03-13) |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
| Chains | Polymer | Molecular Function | Biological Process | Cellular Component |
|---|---|---|---|---|
| L [auth F], M [auth G], N [auth K], O [auth L] | Circumsporozoite protein | - |
| |
| I [auth E], J, K [auth M], P [auth N] | Anti-kappa VHH domain | - | - | - |
| B, D, F [auth I], H [auth P] | 4493 Kappa light chain | - | - | - |
| A, C, E [auth H], G [auth O] | 4493 Fab heavy chain | - | - | - |














