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LT1009 humanized antibody Fab fragment in complex with calcium External Resource: Annotation Chains Family Name Domain Identifier Architecture Possible Homology Homology Topology Family Provenance Source (Version) B [auth L] e6vrtL1 A: alpha arrays X: putative RnfG subunit of electron transport complex H: putative RnfG subunit of electron transport complex T: Aspartate/ornithine carbamoyltransferase F: ECOD (v295.2) A [auth H] e6vrtH1 A: alpha arrays X: putative RnfG subunit of electron transport complex H: putative RnfG subunit of electron transport complex T: Aspartate/ornithine carbamoyltransferase F: ECOD (v295.2)
Chain Protein Name Description Organism Name Gene Allele Name(s) Domain Name(s) Receptor Type Receptor Description Provenance Source B [auth L] Fab Sonepcizumab L-KAPPA Homo sapiens (human) IGKV1-6*01, IGKV1-6*02, IGKJ2*01, IGKJ2*02, IGKC*01 V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA IG FAB-GAMMA-1_KAPPA IMGT (202637-0) A [auth H] Fab Sonepcizumab VH-CH1 Homo sapiens (human) IGHV5-51*01, IGHV5-51*03, IGHJ3*01, IGHJ3*02, IGHG1*03, IGHG1*08, IGHG1*06 V-DOMAIN VH, C-DOMAIN CH1 IG FAB-GAMMA-1_KAPPA IMGT (202637-0)
Chain Chain Class Chain Subclass Chain Type Antigen Name(s) Provenance Source B [auth L] Light Chain IGKV17 Kappa - SAbDab (2026-09-25) A [auth H] Heavy Chain IGHV5 - - SAbDab (2026-09-25)