Cryo-EM structure of Chikungunya virus in complex with mAb CHK-263 IgG (subregion around icosahedral 2-fold vertex)
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage
| Chains | Type | Family Name | Domain Identifier | Family Identifier | Provenance Source (Version) |
|---|---|---|---|---|---|
| U [auth s] | SCOP2B Superfamily | Trypsin-like serine proteases | 8101317 | 3000114 | SCOP2B (2022-06-29) |
| RA [auth t] | SCOP2B Superfamily | Trypsin-like serine proteases | 8101317 | 3000114 | SCOP2B (2022-06-29) |
Domain Annotation: ECOD Classification ECOD Database Homepage
| Chains | Family Name | Domain Identifier | Architecture | Possible Homology | Homology | Topology | Family | Provenance Source (Version) |
|---|---|---|---|---|---|---|---|---|
| U [auth s] | PA14 | e7cw3s1 | A: a/b three-layered sandwiches | X: CNF1/YfiH-like putative cysteine hydrolases | H: Bromodomain | T: Bromodomain | F: PA14 | ECOD (v294.1) |
| RA [auth t] | PA14 | e7cw3t1 | A: a/b three-layered sandwiches | X: CNF1/YfiH-like putative cysteine hydrolases | H: Bromodomain | T: Bromodomain | F: PA14 | ECOD (v294.1) |
| W [auth l] | PA14 | e7cw3l1 | A: a/b three-layered sandwiches | X: CNF1/YfiH-like putative cysteine hydrolases | H: Bromodomain | T: Bromodomain | F: PA14 | ECOD (v294.1) |
| TA [auth p] | PA14 | e7cw3p1 | A: a/b three-layered sandwiches | X: CNF1/YfiH-like putative cysteine hydrolases | H: Bromodomain | T: Bromodomain | F: PA14 | ECOD (v294.1) |
| J [auth r] | PA14 | e7cw3r1 | A: a/b three-layered sandwiches | X: CNF1/YfiH-like putative cysteine hydrolases | H: Bromodomain | T: Bromodomain | F: PA14 | ECOD (v294.1) |
| GA [auth n] | PA14 | e7cw3n1 | A: a/b three-layered sandwiches | X: CNF1/YfiH-like putative cysteine hydrolases | H: Bromodomain | T: Bromodomain | F: PA14 | ECOD (v294.1) |
| V [auth k] | PA14 | e7cw3k1 | A: a/b three-layered sandwiches | X: CNF1/YfiH-like putative cysteine hydrolases | H: Bromodomain | T: Bromodomain | F: PA14 | ECOD (v294.1) |
| SA [auth o] | PA14 | e7cw3o1 | A: a/b three-layered sandwiches | X: CNF1/YfiH-like putative cysteine hydrolases | H: Bromodomain | T: Bromodomain | F: PA14 | ECOD (v294.1) |
| I [auth q] | PA14 | e7cw3q1 | A: a/b three-layered sandwiches | X: CNF1/YfiH-like putative cysteine hydrolases | H: Bromodomain | T: Bromodomain | F: PA14 | ECOD (v294.1) |
| FA [auth m] | PA14 | e7cw3m1 | A: a/b three-layered sandwiches | X: CNF1/YfiH-like putative cysteine hydrolases | H: Bromodomain | T: Bromodomain | F: PA14 | ECOD (v294.1) |
| Z [auth U] | PA14 | e7cw3U1 | A: a/b three-layered sandwiches | X: CNF1/YfiH-like putative cysteine hydrolases | H: Bromodomain | T: Bromodomain | F: PA14 | ECOD (v294.1) |
| X [auth W] | PA14 | e7cw3W1 | A: a/b three-layered sandwiches | X: CNF1/YfiH-like putative cysteine hydrolases | H: Bromodomain | T: Bromodomain | F: PA14 | ECOD (v294.1) |
| S [auth e] | PA14 | e7cw3e1 | A: a/b three-layered sandwiches | X: CNF1/YfiH-like putative cysteine hydrolases | H: Bromodomain | T: Bromodomain | F: PA14 | ECOD (v294.1) |
| Q [auth g] | PA14 | e7cw3g1 | A: a/b three-layered sandwiches | X: CNF1/YfiH-like putative cysteine hydrolases | H: Bromodomain | T: Bromodomain | F: PA14 | ECOD (v294.1) |
| PA [auth M] | PA14 | e7cw3M1 | A: a/b three-layered sandwiches | X: CNF1/YfiH-like putative cysteine hydrolases | H: Bromodomain | T: Bromodomain | F: PA14 | ECOD (v294.1) |
| O [auth i] | PA14 | e7cw3i1 | A: a/b three-layered sandwiches | X: CNF1/YfiH-like putative cysteine hydrolases | H: Bromodomain | T: Bromodomain | F: PA14 | ECOD (v294.1) |
| NA [auth O] | PA14 | e7cw3O1 | A: a/b three-layered sandwiches | X: CNF1/YfiH-like putative cysteine hydrolases | H: Bromodomain | T: Bromodomain | F: PA14 | ECOD (v294.1) |
| M [auth I] | PA14 | e7cw3I1 | A: a/b three-layered sandwiches | X: CNF1/YfiH-like putative cysteine hydrolases | H: Bromodomain | T: Bromodomain | F: PA14 | ECOD (v294.1) |
| LA [auth Q] | PA14 | e7cw3Q1 | A: a/b three-layered sandwiches | X: CNF1/YfiH-like putative cysteine hydrolases | H: Bromodomain | T: Bromodomain | F: PA14 | ECOD (v294.1) |
| K | PA14 | e7cw3K1 | A: a/b three-layered sandwiches | X: CNF1/YfiH-like putative cysteine hydrolases | H: Bromodomain | T: Bromodomain | F: PA14 | ECOD (v294.1) |
| JA [auth a] | PA14 | e7cw3a1 | A: a/b three-layered sandwiches | X: CNF1/YfiH-like putative cysteine hydrolases | H: Bromodomain | T: Bromodomain | F: PA14 | ECOD (v294.1) |
| HA [auth c] | PA14 | e7cw3c1 | A: a/b three-layered sandwiches | X: CNF1/YfiH-like putative cysteine hydrolases | H: Bromodomain | T: Bromodomain | F: PA14 | ECOD (v294.1) |
| G [auth E] | PA14 | e7cw3E1 | A: a/b three-layered sandwiches | X: CNF1/YfiH-like putative cysteine hydrolases | H: Bromodomain | T: Bromodomain | F: PA14 | ECOD (v294.1) |
| E [auth G] | PA14 | e7cw3G1 | A: a/b three-layered sandwiches | X: CNF1/YfiH-like putative cysteine hydrolases | H: Bromodomain | T: Bromodomain | F: PA14 | ECOD (v294.1) |
| DA [auth S] | PA14 | e7cw3S1 | A: a/b three-layered sandwiches | X: CNF1/YfiH-like putative cysteine hydrolases | H: Bromodomain | T: Bromodomain | F: PA14 | ECOD (v294.1) |
| C | PA14 | e7cw3C1 | A: a/b three-layered sandwiches | X: CNF1/YfiH-like putative cysteine hydrolases | H: Bromodomain | T: Bromodomain | F: PA14 | ECOD (v294.1) |
| BA [auth Y] | PA14 | e7cw3Y1 | A: a/b three-layered sandwiches | X: CNF1/YfiH-like putative cysteine hydrolases | H: Bromodomain | T: Bromodomain | F: PA14 | ECOD (v294.1) |
| A | PA14 | e7cw3A1 | A: a/b three-layered sandwiches | X: CNF1/YfiH-like putative cysteine hydrolases | H: Bromodomain | T: Bromodomain | F: PA14 | ECOD (v294.1) |
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 |
|---|---|---|---|---|---|---|---|---|
| GA [auth n], J [auth r], TA [auth p], W [auth l] | mAb CHK-263 | L-KAPPA | Mus musculus (house mouse) | IGKV5-43*01, IGKJ2*01, IGKC*01, IGKC*02 | V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA | IG | FAB-GAMMA-1_KAPPA | IMGT (202612-0) |
| FA [auth m], I [auth q], SA [auth o], V [auth k] | mAb CHK-263 | VH-CH1 | Mus musculus (house mouse) | IGHV1-80*01, IGHJ2*01, IGHG2C*01, IGHG2C*02, IGHG2C*03 | V-DOMAIN VH, C-DOMAIN CH1 | IG | FAB-GAMMA-1_KAPPA | IMGT (202612-0) |
SAbDab Antibody Annotation SAbDab Database Homepage
| Chain | Chain Class | Chain Subclass | Chain Type | Antigen Name(s) | Provenance Source |
|---|---|---|---|---|---|
| GA [auth n], J [auth r], TA [auth p], W [auth l] | Light Chain | IGKV5 | Kappa | e2 glycoprotein | e1 glycoprotein, unknown | unknown, capsid protein | capsid protein, fab light chain | fab heavy chain | SAbDab (2026-03-27) |
| FA [auth m], I [auth q], SA [auth o], V [auth k] | Heavy Chain | IGHV1 | - | e2 glycoprotein | e1 glycoprotein, unknown | unknown, capsid protein | capsid protein, fab light chain | fab heavy chain | SAbDab (2026-03-27) |
Protein Family Annotation Pfam Database Homepage
| Chains | Accession | Name | Description | Comments | Source |
|---|---|---|---|---|---|
| PF00943 | Alphavirus E2 glycoprotein (Alpha_E2_glycop) | Alphavirus E2 glycoprotein | - | Family | |
| PF00944 | Alphavirus core protein (Peptidase_S3) | Alphavirus core protein | Also known as coat protein C and capsid protein C. This makes the literature very confusing. Alphaviruses consist of a nucleoprotein core, a lipid membrane which envelopes the core, and glycoprotein spikes protruding from the lipid membrane. | Domain | |
| PF00944 | Alphavirus core protein (Peptidase_S3) | Alphavirus core protein | Also known as coat protein C and capsid protein C. This makes the literature very confusing. Alphaviruses consist of a nucleoprotein core, a lipid membrane which envelopes the core, and glycoprotein spikes protruding from the lipid membrane. | Domain | |
| PF01589 | Alphavirus E1 glycoprotein (Alpha_E1_glycop) | Alphavirus E1 glycoprotein | - | Family |














