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CRYSTAL STRUCTURE OF THE BIMAGRUMAB Fab External Resource: Annotation Chains Family Name Domain Identifier Architecture Possible Homology Homology Topology Family Provenance Source (Version) B [auth L] PBS_linker_poly e5nhwL1 A: alpha arrays X: Cryptochrome/photolyase FAD-binding domain-related H: Cryptochrome/photolyase FAD-binding domain-related T: Undecaprenyl diphosphate synthase F: PBS_linker_poly ECOD (v295.2) A [auth H] PBS_linker_poly e5nhwH1 A: alpha arrays X: Cryptochrome/photolyase FAD-binding domain-related H: Cryptochrome/photolyase FAD-binding domain-related T: Undecaprenyl diphosphate synthase F: PBS_linker_poly 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] Anti-human ActRII Bimagrumab Fab L-LAMBDA Homo sapiens (human) IGLV2-23*01, IGLJ2*01, IGLJ3*02, IGLJ3*01, IGLC2*01, IGLC2*02, IGLC3*04 V-DOMAIN V-LAMBDA, C-DOMAIN C-LAMBDA IG FAB-GAMMA-1_LAMBDA IMGT (202637-0) A [auth H] Anti-human ActRII Bimagrumab Fab VH-CH1 Homo sapiens (human) IGHV1-2*02, IGHJ4*01, IGHJ5*01, IGHJ5*02, IGHJ4*02, IGHJ4*03, IGHG1*01, IGHG1*02, IGHG1*04, IGHG1*05 V-DOMAIN VH, C-DOMAIN CH1 IG FAB-GAMMA-1_LAMBDA IMGT (202637-0)
Chain Chain Class Chain Subclass Chain Type Antigen Name(s) Provenance Source B [auth L] Light Chain IGLV2 Lambda - SAbDab (2026-09-25) A [auth H] Heavy Chain IGHV1 - - SAbDab (2026-09-25)
Protein Modification Annotation Modified Residue(s) Chain Residue(s) Description A [auth H] PCA Parent Component: GLN RESID AA0031 PSI-MOD MOD:00040 , 2-pyrrolidone-5-carboxylic acid (Glu) MOD:00420