1c5c
DECARBOXYLASE CATALYTIC ANTIBODY 21D8-HAPTEN COMPLEXDECARBOXYLASE CATALYTIC ANTIBODY 21D8-HAPTEN COMPLEX
Structural highlights
Evolutionary Conservation![]() Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedAntibody 21D8 catalyzes the solvent-sensitive decarboxylation of 3-carboxybenzisoxazoles. The crystal structure of chimeric Fab 21D8 with and without hapten at 1.61 A and 2.10 A, respectively, together with computational analysis, shows how a melange of polar and non-polar sites are exploited to achieve both substrate binding and acceleration of a reaction normally facilitated by purely aprotic dipolar media. The striking similarity of the decarboxylase and a series of unrelated esterase antibodies also highlights the chemical versatility of structurally conserved anion binding sites and the relatively subtle changes involved in fine-tuning the immunoglobulin pocket for recognition of different ligands and catalysis of different reactions. Catalysis of decarboxylation by a preorganized heterogeneous microenvironment: crystal structures of abzyme 21D8.,Hotta K, Lange H, Tantillo DJ, Houk KN, Hilvert D, Wilson IA J Mol Biol. 2000 Oct 6;302(5):1213-25. PMID:11183784[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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