1gsp

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(New page: 200px<br /> <applet load="1gsp" size="450" color="white" frame="true" align="right" spinBox="true" caption="1gsp, resolution 2.20&Aring;" /> '''RIBONUCLEASE T1 COM...)
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Revision as of 17:45, 29 October 2007

Image:1gsp.gif

1gsp, resolution 2.20Å

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RIBONUCLEASE T1 COMPLEXED WITH 2',3'-CGPS, 1 DAY

Overview

Here we present a time-resolved crystallographic analysis of the, hydrolysis of exo (Sp) guanosine 2',3'-cyclophosphorothioate by RNase T1., The use of a slow substrate and fast crystallization methods made it, possible to perform the study with conventional data-collection, techniques. The results support the idea that the hydrolysis reaction, proceeds through a mechanism that is the inverse of the, transesterification reaction. In addition, the structures provide an, explanation for the differential behavior of RNase T1 towards exo- and, endo-cyclic thiophosphates.

About this Structure

1GSP is a [Single protein] structure of sequence from [Aspergillus oryzae] with CA and SGP as [ligands]. Active as [[1]], with EC number [3.1.27.3]. Full crystallographic information is available from [OCA].

Reference

Hydrolysis of a slow cyclic thiophosphate substrate of RNase T1 analyzed by time-resolved crystallography., Zegers I, Loris R, Dehollander G, Fattah Haikal A, Poortmans F, Steyaert J, Wyns L, Nat Struct Biol. 1998 Apr;5(4):280-3. PMID:9546218

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