1crl
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(New page: 200px<br /><applet load="1crl" size="450" color="white" frame="true" align="right" spinBox="true" caption="1crl, resolution 2.06Å" /> '''INSIGHTS INTO INTERF...)
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Revision as of 10:35, 20 November 2007
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INSIGHTS INTO INTERFACIAL ACTIVATION FROM AN 'OPEN' STRUCTURE OF CANDIDA RUGOSA LIPASE
Overview
The structure of the Candida rugosa lipase determined at 2.06-A resolution, reveals a conformation with a solvent-accessible active site. Comparison, with the crystal structure of the homologous lipase from Geotrichum, candidum, in which the active site is covered by surface loops and is, inaccessible from the solvent, shows that the largest structural, differences occur in the vicinity of the active site. Three loops in this, region differ significantly in conformation, and the interfacial, activation of these lipases is likely to be associated with conformational, rearrangements of these loops. The "open" structure provides a new image, of the substrate binding region and active site access, which is different, from that inferred from the structure of the "closed" form of the G., candidum lipase.
About this Structure
1CRL is a Single protein structure of sequence from [1] with NAG as ligand. Active as Triacylglycerol lipase, with EC number 3.1.1.3 Full crystallographic information is available from OCA.
Reference
Insights into interfacial activation from an open structure of Candida rugosa lipase., Grochulski P, Li Y, Schrag JD, Bouthillier F, Smith P, Harrison D, Rubin B, Cygler M, J Biol Chem. 1993 Jun 15;268(17):12843-7. PMID:8509417
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