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 5IVZ | pdb_00005ivz

Cetuximab Fab in complex with Arg8Cir meditope variant

External Resource: Annotation


Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
DHTH_3e5ivzD1 A: alpha arraysX: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4H: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4T: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4F: HTH_3ECOD (v295.2)
BHTH_3e5ivzB1 A: alpha arraysX: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4H: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4T: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4F: HTH_3ECOD (v295.2)
CHTH_3e5ivzC1 A: alpha arraysX: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4H: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4T: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4F: HTH_3ECOD (v295.2)
AHTH_3e5ivzA1 A: alpha arraysX: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4H: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4T: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4F: HTH_3ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
D2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (4.3.0)
B2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (4.3.0)
C2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (4.3.0)
A2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (4.3.0)

IMGT Antibody Annotation IMGT Database Homepage

ChainProtein NameDescriptionOrganism NameGene Allele Name(s)Domain Name(s)Receptor TypeReceptor DescriptionProvenance Source
B, D
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)
A, C
Cetuximab Fab L-KAPPA Chimeric (chimeric) IGKV5-48*01, IGKJ5*01, IGKJ2-3*01, IGKJ2-1*01, IGKJ2-2*01, IGKC*01 V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA IG FAB-GAMMA-1_KAPPA IMGT (202636-0)

SAbDab Antibody Annotation SAbDab Database Homepage

ChainChain ClassChain SubclassChain TypeAntigen Name(s) Provenance Source
B, D
Heavy ChainIGHV2 --SAbDab (2026-09-18)
A, C
Light ChainIGKV5 Kappa-SAbDab (2026-09-18)

Thera-SAbDab Antibody Annotation Thera-SAbDab Database Homepage

ChainNameTargetProvenance Source
B, D
 Izalontamab EGFR/ERBB1/HER1, ERBB3/HER3Therapeutic SAbDab (2026-09-18)
A, C
 Cetuximab EGFR/ERBB1/HER1, ERBB3/HER3Therapeutic SAbDab (2026-09-18)

Protein Modification Annotation

Modified Residue(s)
ChainResidue(s)Description
E, F
CIR Parent Component: ARG

:  AA0214

:  L-citrulline MOD:00219