1ucb
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STRUCTURE OF UNCOMPLEXED FAB COMPARED TO COMPLEX (1CLY, 1CLZ)
OverviewOverview
The 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.
DiseaseDisease
Known disease associated with this structure: Kappa light chain deficiency OMIM:[147200]
About this StructureAbout this Structure
1UCB is a Single protein structure of sequence from Homo sapiens with SO4 as ligand. Full crystallographic information is available from OCA.
ReferenceReference
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
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