1w9d

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==Overview==
==Overview==
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Myrosinase, a thioglucoside glucohydrolase, is the only enzyme able to, hydrolyse glucosinolates, a unique family of molecules bearing an anomeric, O-sulfated thiohydroximate function. Non-hydrolysable myrosinase, inhibitors have been devised and studied for their biological interaction., Diverse modifications of the O-sulfate moiety did not result in a, significant inhibitory effect, whereas replacing the D-glucopyrano residue, by its carba-analogue allowed inhibition to take place. X-Ray experiments, carried out after soaking allowed for the first time inclusion of a, non-hydrolysable inhibitor inside the enzymatic pocket. Structural tuning, of the aglycon part in its pocket is being used as a guide for the, development of simplified and more potent inhibitors.
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Myrosinase, a thioglucoside glucohydrolase, is the only enzyme able to hydrolyse glucosinolates, a unique family of molecules bearing an anomeric O-sulfated thiohydroximate function. Non-hydrolysable myrosinase inhibitors have been devised and studied for their biological interaction. Diverse modifications of the O-sulfate moiety did not result in a significant inhibitory effect, whereas replacing the D-glucopyrano residue by its carba-analogue allowed inhibition to take place. X-Ray experiments carried out after soaking allowed for the first time inclusion of a non-hydrolysable inhibitor inside the enzymatic pocket. Structural tuning of the aglycon part in its pocket is being used as a guide for the development of simplified and more potent inhibitors.
==About this Structure==
==About this Structure==
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[[Category: Sinapis alba]]
[[Category: Sinapis alba]]
[[Category: Single protein]]
[[Category: Single protein]]
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[[Category: Transferred entry: 3.2.1.147]]
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[[Category: Transferred entry: 3 2.1 147]]
[[Category: Arzt, S.]]
[[Category: Arzt, S.]]
[[Category: Bourderioux, A.]]
[[Category: Bourderioux, A.]]
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[[Category: Burmeister, W.P.]]
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[[Category: Burmeister, W P.]]
[[Category: Cottaz, S.]]
[[Category: Cottaz, S.]]
[[Category: Gueyrard, D.]]
[[Category: Gueyrard, D.]]
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[[Category: thiohydroximate]]
[[Category: thiohydroximate]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Feb 3 10:20:48 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 15:41:51 2008''

Revision as of 13:41, 21 February 2008


1w9d, resolution 1.6Å

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S. ALBA MYROSINASE IN COMPLEX WITH S-ETHYL PHENYLACETOTHIOHYDROXIMATE-O-SULFATE

Overview

Myrosinase, a thioglucoside glucohydrolase, is the only enzyme able to hydrolyse glucosinolates, a unique family of molecules bearing an anomeric O-sulfated thiohydroximate function. Non-hydrolysable myrosinase inhibitors have been devised and studied for their biological interaction. Diverse modifications of the O-sulfate moiety did not result in a significant inhibitory effect, whereas replacing the D-glucopyrano residue by its carba-analogue allowed inhibition to take place. X-Ray experiments carried out after soaking allowed for the first time inclusion of a non-hydrolysable inhibitor inside the enzymatic pocket. Structural tuning of the aglycon part in its pocket is being used as a guide for the development of simplified and more potent inhibitors.

About this Structure

1W9D is a Single protein structure of sequence from Sinapis alba with , , , and as ligands. Active as Transferred entry: 3.2.1.147, with EC number 3.2.3.1 Known structural/functional Site: . Full crystallographic information is available from OCA.

Reference

The glucosinolate-myrosinase system. New insights into enzyme-substrate interactions by use of simplified inhibitors., Bourderioux A, Lefoix M, Gueyrard D, Tatibouet A, Cottaz S, Arzt S, Burmeister WP, Rollin P, Org Biomol Chem. 2005 May 21;3(10):1872-9. Epub 2005 Apr 14. PMID:15889170

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