local CryoEM structure of the SARS-CoV-2 S6PV2 in complex with BD-812 Fab and BD-836 Fab
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage
Domain Annotation: ECOD Classification ECOD Database Homepage
| Chains | Family Name | Domain Identifier | Architecture | Possible Homology | Homology | Topology | Family | Provenance Source (Version) |
|---|---|---|---|---|---|---|---|---|
| E [auth N] | V-set | e7ezvN1 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: V-set | ECOD (1.6) |
| D [auth M] | V-set_8 | e7ezvM1 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: V-set_8 | ECOD (1.6) |
| C [auth L] | V-set | e7ezvL1 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: V-set | ECOD (1.6) |
| B [auth H] | V-set_10 | e7ezvH1 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: V-set_10 | ECOD (1.6) |
| A | Spike_rec_bind | e7ezvA1 | A: a+b three layers | X: Coronavirus spike protein receptor-binding domain (From Homology) | H: Coronavirus spike protein receptor-binding domain | T: Beta-coronavirus spike protein receptor-binding domain | F: Spike_rec_bind | ECOD (1.6) |
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 |
|---|---|---|---|---|---|---|---|---|
| E [auth N] | BD-836 Fab, anti-SARS-CoV-2, neutralizing, in complex | 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 (202549-0) |
| D [auth M] | BD-836 Fab, anti-SARS-CoV-2, neutralizing, in complex | VH-CH1 | Homo sapiens (human) | IGHV1-58*01, IGHJ1*01, IGHJ3*01, IGHJ3*02, IGHJ2*01, IGHJ5*01, IGHJ4*01, IGHJ6-2*01, IGHJ6-3*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 (202549-0) |
| C [auth L] | BD-812 Fab, anti-SARS-CoV-2, neutralizing, in complex | L-KAPPA | Homo sapiens (human) | IGKV1-27*01, TRAJ39*01, TRAJ17*01, TRAJ26*01, IGKC*01 | V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA | IG | FAB-GAMMA-1_KAPPA | IMGT (202549-0) |
| B [auth H] | BD-812 Fab, anti-SARS-CoV-2, neutralizing, in complex | VH-CH1 | Homo sapiens (human) | IGHV5-51*01, IGHV5-51*03, IGHJ1*01, IGHJ5*02, IGHJ3*01, IGHJ2*01, IGHJ5*01, IGHJ4*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 (202549-0) |
SAbDab Antibody Annotation SAbDab Database Homepage
| Chain | Chain Class | Chain Subclass | Chain Type | Antigen Name(s) | Provenance Source |
|---|---|---|---|---|---|
| E [auth N] | Light Chain | IGKV3 | Kappa | spike glycoprotein | SAbDab (2025-12-19) |
| D [auth M] | Heavy Chain | IGHV1 | - | spike glycoprotein | SAbDab (2025-12-19) |
| C [auth L] | Light Chain | IGKV1 | Kappa | spike glycoprotein | SAbDab (2025-12-19) |
| B [auth H] | Heavy Chain | IGHV5 | - | spike glycoprotein | SAbDab (2025-12-19) |
Protein Family Annotation Pfam Database Homepage
| Chains | Accession | Name | Description | Comments | Source |
|---|---|---|---|---|---|
| PF09408 | Betacoronavirus spike glycoprotein S1, receptor binding (bCoV_S1_RBD) | Betacoronavirus spike glycoprotein S1, receptor binding | This entry represents the receptor binding domain (S1 RBD) of the betacoronavirus spike glycoprotein. The spike glycoprotein is arranged in trimers on the surface of the viral membrane and is essential for viral entry. The spike protein is translat ... | Domain |














