Structure of the 1121B Fab fragment
Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage
| Chains | Domain Info | Class | Fold | Superfamily | Family | Domain | Species | Provenance Source (Version) |
|---|---|---|---|---|---|---|---|---|
| B [auth H] | d3s34h_ | All beta proteins | Immunoglobulin-like beta-sandwich | Immunoglobulin | V set domains (antibody variable domain-like) | automated matches | mouse (Mus musculus ) [TaxId: 10090 ], human (Homo sapiens ) [TaxId: 9606 ], | SCOPe (2.08) |
| A [auth L] | d3s34l2 | All beta proteins | Immunoglobulin-like beta-sandwich | Immunoglobulin | C1 set domains (antibody constant domain-like) | automated matches | mouse (Mus musculus ) [TaxId: 10090 ], human (Homo sapiens ) [TaxId: 9606 ], | SCOPe (2.08) |
| A [auth L] | d3s34l1 | All beta proteins | Immunoglobulin-like beta-sandwich | Immunoglobulin | automated matches | automated matches | mouse (Mus musculus ) [TaxId: 10090 ], human (Homo sapiens ) [TaxId: 9606 ], | SCOPe (2.08) |
Domain Annotation: ECOD Classification ECOD Database Homepage
| Chains | Family Name | Domain Identifier | Architecture | Possible Homology | Homology | Topology | Family | Provenance Source (Version) |
|---|---|---|---|---|---|---|---|---|
| B [auth H] | e3s34H1 | A: Cystatin-like | X: Immunoglobulin-related | H: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | T: HATPase_c | F: | ECOD (20:10:01) | |
| A [auth L] | e3s34L1 | A: Cystatin-like | X: Immunoglobulin-related | H: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | T: HATPase_c | F: | ECOD (20:10:01) |
Domain Annotation: CATH CATH Database Homepage
| Chain | Domain | Class | Architecture | Topology | Homology | Provenance Source (Version) |
|---|---|---|---|---|---|---|
| B [auth H] | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (4.3.0) |
| A [auth L] | 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 [auth H] | 1121B, IMC_1121B Fab, ramucirumab, anti-KDR (VEGFR2, FLK1, CD309) | VH-CH1 | Homo sapiens (human) | IGHV3-21*01, IGHV3-21*02, IGHV3-21*04, IGHV3-21*03, IGHJ3*02, IGHG1*01, IGHG1*02, IGHG1*03 | V-DOMAIN VH, C-DOMAIN CH1 | IG | FAB-GAMMA-1_KAPPA | IMGT (202609-0) |
| A [auth L] | 1121B, IMC_1121B Fab, ramucirumab, anti-KDR (VEGFR2, FLK1, CD309) | L-KAPPA | Homo sapiens (human) | IGKV1-12*01, IGKV1D-12*01, IGKV1-12*02, IGKV1D-12*02, IGKJ4*01, IGKJ4*02, IGKC*01 | V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA | 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 [auth H] | Heavy Chain | IGHV3 | - | - | SAbDab (2026-03-13) |
| A [auth L] | Light Chain | IGKV1 | Kappa | - | SAbDab (2026-03-13) |
Thera-SAbDab Antibody Annotation Thera-SAbDab Database Homepage
| Chain | Name | Target | Provenance Source |
|---|---|---|---|
| B [auth H] | Ramucirumab | KDR/CD309/VEGFR2 | Therapeutic SAbDab (2026-03-13) |
| A [auth L] | Pulocimab | KDR/CD309/VEGFR2 | Therapeutic SAbDab (2026-03-13) |
