Crystal structure of the Fab fragment of necitumumab (Fab11F8) in complex with domain III from a cetuximab resistant variant of EGFR (sEGFRd3-S468R)
External Resource: Annotation
- Domain Annotation: SCOP/SCOPe Classification
- Domain Annotation: SCOP2 Classification
- Domain Annotation: ECOD Classification
- Domain Annotation: CATH
- IMGT Antibody Annotation
- SAbDab Antibody Annotation
- Thera-SAbDab Antibody Annotation
- Protein Family Annotation
- Gene Ontology: Gene Product Annotation
- InterPro: Protein Family Classification
- Pharos: Disease Associations
Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage
| Chains | Type | Family Name | Domain Identifier | Family Identifier | Provenance Source (Version) |
|---|---|---|---|---|---|
| J [auth I] | SCOP2B Superfamily | Growth factor receptor domain-like | 8038763 | 3000398 | SCOP2B (2022-06-29) |
| J [auth I] | SCOP2B Superfamily | L domain-like | 8038760 | 3001010 | SCOP2B (2022-06-29) |
| G [auth E] | SCOP2B Superfamily | Growth factor receptor domain-like | 8038763 | 3000398 | SCOP2B (2022-06-29) |
| G [auth E] | SCOP2B Superfamily | L domain-like | 8038760 | 3001010 | SCOP2B (2022-06-29) |
| D [auth B] | SCOP2B Superfamily | L domain-like | 8038760 | 3001010 | SCOP2B (2022-06-29) |
| D [auth B] | SCOP2B Superfamily | Growth factor receptor domain-like | 8038763 | 3000398 | SCOP2B (2022-06-29) |
| A | SCOP2B Superfamily | L domain-like | 8038760 | 3001010 | SCOP2B (2022-06-29) |
| A | SCOP2B Superfamily | Growth factor receptor domain-like | 8038763 | 3000398 | 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) |
|---|---|---|---|---|---|---|---|---|
| L [auth K] | ATP-synt_Eps | e6b3sK1 | A: a/b three-layered sandwiches | X: Periplasmic binding protein-like II | H: Rubredoxin-related | T: Tetrapyrrole methylase C-terminal domain | F: ATP-synt_Eps | ECOD (v294.1) |
| I [auth G] | ATP-synt_Eps | e6b3sG1 | A: a/b three-layered sandwiches | X: Periplasmic binding protein-like II | H: Rubredoxin-related | T: Tetrapyrrole methylase C-terminal domain | F: ATP-synt_Eps | ECOD (v294.1) |
| F [auth D] | ATP-synt_Eps | e6b3sD1 | A: a/b three-layered sandwiches | X: Periplasmic binding protein-like II | H: Rubredoxin-related | T: Tetrapyrrole methylase C-terminal domain | F: ATP-synt_Eps | ECOD (v294.1) |
| C [auth L] | RuBisCO_large_N | e6b3sL1 | A: a/b three-layered sandwiches | X: Protein kinase/SAICAR synthase/ATP-grasp | H: Protein kinase/SAICAR synthase/ATP-grasp | T: Undecaprenyl diphosphate synthase | F: RuBisCO_large_N | ECOD (v294.1) |
| K [auth J] | ATP-synt_Eps | e6b3sJ1 | A: a/b three-layered sandwiches | X: Periplasmic binding protein-like II | H: Rubredoxin-related | T: Tetrapyrrole methylase C-terminal domain | F: ATP-synt_Eps | ECOD (v294.1) |
| H [auth F] | ATP-synt_Eps | e6b3sF1 | A: a/b three-layered sandwiches | X: Periplasmic binding protein-like II | H: Rubredoxin-related | T: Tetrapyrrole methylase C-terminal domain | F: ATP-synt_Eps | ECOD (v294.1) |
| E [auth C] | ATP-synt_Eps | e6b3sC1 | A: a/b three-layered sandwiches | X: Periplasmic binding protein-like II | H: Rubredoxin-related | T: Tetrapyrrole methylase C-terminal domain | F: ATP-synt_Eps | ECOD (v294.1) |
| B [auth H] | RuBisCO_large_N | e6b3sH1 | A: a/b three-layered sandwiches | X: Protein kinase/SAICAR synthase/ATP-grasp | H: Protein kinase/SAICAR synthase/ATP-grasp | T: Undecaprenyl diphosphate synthase | F: RuBisCO_large_N | ECOD (v294.1) |
| J [auth I] | ATP-synt_Eps | e6b3sI1 | A: a/b three-layered sandwiches | X: Periplasmic binding protein-like II | H: Rubredoxin-related | T: Tetrapyrrole methylase C-terminal domain | F: ATP-synt_Eps | ECOD (v294.1) |
| G [auth E] | ATP-synt_Eps | e6b3sE1 | A: a/b three-layered sandwiches | X: Periplasmic binding protein-like II | H: Rubredoxin-related | T: Tetrapyrrole methylase C-terminal domain | F: ATP-synt_Eps | ECOD (v294.1) |
| D [auth B] | RuBisCO_large_N | e6b3sB1 | A: a/b three-layered sandwiches | X: Protein kinase/SAICAR synthase/ATP-grasp | H: Protein kinase/SAICAR synthase/ATP-grasp | T: Undecaprenyl diphosphate synthase | F: RuBisCO_large_N | ECOD (v294.1) |
| A | ATP-synt_Eps | e6b3sA1 | A: a/b three-layered sandwiches | X: Periplasmic binding protein-like II | H: Rubredoxin-related | T: Tetrapyrrole methylase C-terminal domain | F: ATP-synt_Eps | ECOD (v294.1) |
Domain Annotation: CATH CATH Database Homepage
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 |
|---|---|---|---|---|---|---|---|---|
| C [auth L], F [auth D], I [auth G], L [auth K] | Necitumumab Fab | L-KAPPA | Homo sapiens (human) | IGKV3D-11*02, IGKJ4*01, IGKJ4*02, IGKC*01 | V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA | IG | FAB-GAMMA-1_KAPPA | IMGT (202611-0) |
| B [auth H], E [auth C], H [auth F], K [auth J] | Necitumumab Fab | VH-CH1 | Homo sapiens (human) | IGHV4-30-4*01, IGHJ4*01, IGHJ4*02, IGHJ4*03, IGHG1*01, IGHG1*02, IGHG1*04, IGHG1*05 | V-DOMAIN VH, C-DOMAIN CH1 | IG | FAB-GAMMA-1_KAPPA | IMGT (202611-0) |
| A, D [auth B], G [auth E], J [auth I] | Epidermal Growth Factor Receptor (EGFR) | EGFR1 | Homo sapiens (human) | EGFR*01 | R-LIKE-DOMAIN EGFR (Pr28-459) | RPI | EGFR1 | IMGT (202611-0) |
SAbDab Antibody Annotation SAbDab Database Homepage
| Chain | Chain Class | Chain Subclass | Chain Type | Antigen Name(s) | Provenance Source |
|---|---|---|---|---|---|
| C [auth L], F [auth D], I [auth G], L [auth K] | Light Chain | IGKV3 | Kappa | epidermal growth factor receptor | SAbDab (2026-03-27) |
| B [auth H], E [auth C], H [auth F], K [auth J] | Heavy Chain | IGHV4 | - | epidermal growth factor receptor | SAbDab (2026-03-27) |
Thera-SAbDab Antibody Annotation Thera-SAbDab Database Homepage
| Chain | Name | Target | Provenance Source |
|---|---|---|---|
| C [auth L], F [auth D], I [auth G], L [auth K] | Necitumumab | EGFR/ERBB1/HER1 | Therapeutic SAbDab (2026-03-27) |
| B [auth H], E [auth C], H [auth F], K [auth J] | Necitumumab | EGFR/ERBB1/HER1 | Therapeutic SAbDab (2026-03-27) |
Protein Family Annotation Pfam Database Homepage
| Chains | Accession | Name | Description | Comments | Source |
|---|---|---|---|---|---|
| A, D [auth B], G [auth E], J [auth I] | PF01030 | Receptor L domain (Recep_L_domain) | Receptor L domain | - | Repeat |














