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Crystal structure of 1E9 PheL89Ser/LeuH47Trp/MetH100bPhe, an engineered Diels-Alderase Fab with modified specificity and catalytic activity External Resource: Annotation Chains Family Name Domain Identifier Architecture Possible Homology Homology Topology Family Provenance Source (Version) B [auth H] G-gamma e3o2vH1 A: alpha arrays X: Immunoglobulin-like beta-sandwich H: Immunoglobulin-related T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like F: G-gamma ECOD (v295.2) A [auth L] G-gamma e3o2vL1 A: alpha arrays X: Immunoglobulin-like beta-sandwich H: Immunoglobulin-related T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like F: G-gamma ECOD (v295.2)
Chain Protein Name Description Organism Name Gene Allele Name(s) Domain Name(s) Receptor Type Receptor Description Provenance Source B [auth H] 1E9, VL F105>S, VH L52>W, M115>F Fab, Diels-Alder catalytic VH-CH1 Chimeric (chimeric) IGHV9-3-1*01, IGHJ4*01, IGHG1*01, IGHG1*02, IGHG1*04, IGHG1*05 V-DOMAIN VH, C-DOMAIN CH1 IG FAB-GAMMA-1_KAPPA IMGT (202637-0) A [auth L] 1E9, VL F105>S, VH L52>W, M115>F Fab, Diels-Alder catalytic L-KAPPA Chimeric (chimeric) IGKV1-110*01, IGKJ1*02, IGKC*01 V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA IG FAB-GAMMA-1_KAPPA IMGT (202637-0)
Chain Chain Class Chain Subclass Chain Type Antigen Name(s) Provenance Source B [auth H] Heavy Chain IGHV9 - - SAbDab (2026-09-25) A [auth L] Light Chain IGKV1 Kappa - SAbDab (2026-09-25)