Crystal Structure of an influenza A hemagglutinin antibody Fab variant CH67:1203d4 chimera
External Resource: Annotation
Domain Annotation: ECOD Classification ECOD Database Homepage
| Chains | Family Name | Domain Identifier | Architecture | Possible Homology | Homology | Topology | Family | Provenance Source (Version) |
|---|---|---|---|---|---|---|---|---|
| D [auth A] | e6dl8A1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: a+b domain in acetyl-CoA synthetase-like proteins | T: a+b domain in acetyl-CoA synthetase-like proteins | F: | ECOD (v294.1) | |
| B [auth H] | Sigma70_r2,Sigma70_ner | e6dl8H1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: P-loop domains-related | T: P-loop containing nucleoside triphosphate hydrolases | F: Sigma70_r2,Sigma70_ner | ECOD (v294.1) |
| C [auth B] | Sigma70_r2,Sigma70_ner | e6dl8B1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: P-loop domains-related | T: P-loop containing nucleoside triphosphate hydrolases | F: Sigma70_r2,Sigma70_ner | ECOD (v294.1) |
| A [auth L] | e6dl8L1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: a+b domain in acetyl-CoA synthetase-like proteins | T: a+b domain in acetyl-CoA synthetase-like proteins | F: | ECOD (v294.1) |
Domain Annotation: CATH CATH Database Homepage
| Chain | Domain | Class | Architecture | Topology | Homology | Provenance Source (Version) |
|---|---|---|---|---|---|---|
| D [auth A] | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (utative) |
| B [auth H] | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (utative) |
| C [auth B] | 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], D [auth A] | Fab CH67 | VH-CH1 | Homo sapiens (human) | IGHV1-2*04, IGHJ6*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_LAMBDA | IMGT (202612-0) |
| A [auth L], C [auth B] | Fab CH67 | L-LAMBDA | Homo sapiens (human) | IGLV3-21*02, IGLJ2*01, IGLJ3*01, IGLC2*01, IGLC2*02, IGLC3*04 | V-DOMAIN V-LAMBDA, C-DOMAIN C-LAMBDA | IG | FAB-GAMMA-1_LAMBDA | IMGT (202612-0) |
SAbDab Antibody Annotation SAbDab Database Homepage
| Chain | Chain Class | Chain Subclass | Chain Type | Antigen Name(s) | Provenance Source |
|---|---|---|---|---|---|
| B [auth H], D [auth A] | Heavy Chain | IGHV1 | - | - | SAbDab (2026-03-27) |
| A [auth L], C [auth B] | Light Chain | IGLV3 | Lambda | - | SAbDab (2026-03-27) |














