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Cetuximab Fab in complex with L5E meditope variant External Resource: Annotation Chains Family Name Domain Identifier Architecture Possible Homology Homology Topology Family Provenance Source (Version) D tRNA_anti-codon e5etuD1 A: alpha arrays X: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 H: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 T: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 F: tRNA_anti-codon ECOD (v295.2) B tRNA_anti-codon e5etuB1 A: alpha arrays X: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 H: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 T: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 F: tRNA_anti-codon ECOD (v295.2) C tRNA_anti-codon e5etuC1 A: alpha arrays X: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 H: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 T: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 F: tRNA_anti-codon ECOD (v295.2) A tRNA_anti-codon e5etuA1 A: alpha arrays X: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 H: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 T: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 F: tRNA_anti-codon ECOD (v295.2)
Chain Protein Name Description Organism Name Gene Allele Name(s) Domain Name(s) Receptor Type Receptor Description Provenance Source Cetuximab Fab VH-CH1 Chimeric (chimeric) IGHV2-2*03, IGHJ3*01, IGHG1*03 V-DOMAIN VH, C-DOMAIN CH1 IG FAB-GAMMA-1_KAPPA IMGT (202636-0) Cetuximab Fab L-KAPPA Chimeric (chimeric) IGKV5-48*01, IGKJ5*01, IGKC*01 V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA IG FAB-GAMMA-1_KAPPA IMGT (202636-0)
Chain Chain Class Chain Subclass Chain Type Antigen Name(s) Provenance Source Heavy Chain IGHV2 - - SAbDab (2026-09-18) Light Chain IGKV5 Kappa - SAbDab (2026-09-18)
Chain Name Target Provenance Source Cetuximab EGFR/ERBB1/HER1, ERBB3/HER3 Therapeutic SAbDab (2026-09-18) Izalontamab EGFR/ERBB1/HER1, ERBB3/HER3 Therapeutic SAbDab (2026-09-18)