1b8g

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[[Image:1b8g.gif|left|200px]]
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{{Seed}}
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[[Image:1b8g.png|left|200px]]
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{{STRUCTURE_1b8g| PDB=1b8g | SCENE= }}
{{STRUCTURE_1b8g| PDB=1b8g | SCENE= }}
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'''1-AMINOCYCLOPROPANE-1-CARBOXYLATE SYNTHASE'''
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===1-AMINOCYCLOPROPANE-1-CARBOXYLATE SYNTHASE===
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==Overview==
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The 2.4 A crystal structure of the vitamin B6-dependent enzyme 1-aminocyclopropane-1-carboxylate (ACC) synthase is described. This enzyme catalyses the committed step in the biosynthesis of ethylene, a plant hormone that is responsible for the initiation of fruit ripening and for regulating many other developmental processes. ACC synthase has 15 % sequence identity with the well-studied aspartate aminotransferase, and a completely different catalytic activity yet the overall folds and the active sites are very similar. The new structure together with available biochemical data enables a comparative mechanistic analysis that largely explains the catalytic roles of the conserved and non-conserved active site residues. An external aldimine reaction intermediate (external aldimine with ACC, i.e. with the product) has been modeled. The new structure provides a basis for the rational design of inhibitors with broad agricultural applications.
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The line below this paragraph, {{ABSTRACT_PUBMED_10610793}}, adds the Publication Abstract to the page
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(as it appears on PubMed at http://www.pubmed.gov), where 10610793 is the PubMed ID number.
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{{ABSTRACT_PUBMED_10610793}}
==About this Structure==
==About this Structure==
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[[Category: Storici, P.]]
[[Category: Storici, P.]]
[[Category: Ethylene biosynthesis]]
[[Category: Ethylene biosynthesis]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 11:12:15 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jun 30 18:33:27 2008''

Revision as of 15:33, 30 June 2008

Image:1b8g.png

Template:STRUCTURE 1b8g

1-AMINOCYCLOPROPANE-1-CARBOXYLATE SYNTHASE

Template:ABSTRACT PUBMED 10610793

About this Structure

1B8G is a Single protein structure of sequence from Malus x domestica. Full crystallographic information is available from OCA.

Reference

Structure of 1-aminocyclopropane-1-carboxylate synthase, a key enzyme in the biosynthesis of the plant hormone ethylene., Capitani G, Hohenester E, Feng L, Storici P, Kirsch JF, Jansonius JN, J Mol Biol. 1999 Dec 3;294(3):745-56. PMID:10610793

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