1ucb
From Proteopedia
STRUCTURE OF UNCOMPLEXED FAB COMPARED TO COMPLEX (1CLY, 1CLZ)
Structural highlights
DiseaseIGKC_HUMAN Defects in IGKC are the cause of immunoglobulin kappa light chain deficiency (IGKCD) [MIM:614102. IGKCD is a disease characterized by the complete absence of immunoglobulin kappa chains.[1] FunctionEvolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedThe X-ray structure of the uncomplexed human chimeric Fab' of the anti-tumor antibody BR96 has been determined at 2.6 A resolution. The structure has been compared with Lewis Y antigen-complexed structures of BR96 which were determined previously. The comparison reveals segmental motions and/or conformational rearrangements of three CDR loops (L1, L3, and H2), whereas CDR H3 does not undergo changes upon complexation despite its significant main-chain contacts to the carbohydrate antigen. In light of the uncomplexed chimeric Fab' structure reported here, the previously observed high mobility of the CL:CH1 domains of the complexed chimeric BR96 Fab is rationalized as a "swinging" motion approximately about the axis of the elbow bend. X-ray structure of the uncomplexed anti-tumor antibody BR96 and comparison with its antigen-bound form.,Sheriff S, Chang CY, Jeffrey PD, Bajorath J J Mol Biol. 1996 Jun 28;259(5):938-46. PMID:8683596[2] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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