1zak

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{{STRUCTURE_1zak| PDB=1zak | SCENE= }}
{{STRUCTURE_1zak| PDB=1zak | SCENE= }}
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'''ADENYLATE KINASE FROM MAIZE IN COMPLEX WITH THE INHIBITOR P1,P5-BIS(ADENOSINE-5'-)PENTAPHOSPHATE (AP5A)'''
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===ADENYLATE KINASE FROM MAIZE IN COMPLEX WITH THE INHIBITOR P1,P5-BIS(ADENOSINE-5'-)PENTAPHOSPHATE (AP5A)===
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==Overview==
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The crystal structure of adenylate kinase from maize ligated with an inhibitor has been determined by molecular replacement and refined to 3.5-A resolution. The enzyme keeps the ATP/ADP/AMP equilibrium in the cell. In the C4 plant maize, it has the special task to recycle the AMP produced in large amounts in primary CO2 assimilation. The established structure explains the side reaction with CMP. Moreover, it shows infinite rods that can be readily discerned in the crystal packing. In comparison with homologues, two structural differences that are crucial for this supramolecular assembly are evident. We propose that the rods represent a natural inactive storage form that assembles at night when maize stops CO2 assimilation and thus most of the AMP production in its C4 cycle. The enzyme is particularly abundant in mesophyll chloroplasts, where such an assembly would release appreciable amounts of water that can be used in other processes during the night.
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(as it appears on PubMed at http://www.pubmed.gov), where 9428681 is the PubMed ID number.
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{{ABSTRACT_PUBMED_9428681}}
==About this Structure==
==About this Structure==
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[[Category: Atp:amp-phosphotransferase]]
[[Category: Atp:amp-phosphotransferase]]
[[Category: Transferase]]
[[Category: Transferase]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 17:23:33 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 21:55:54 2008''

Revision as of 18:55, 28 July 2008

Image:1zak.png

Template:STRUCTURE 1zak

ADENYLATE KINASE FROM MAIZE IN COMPLEX WITH THE INHIBITOR P1,P5-BIS(ADENOSINE-5'-)PENTAPHOSPHATE (AP5A)

Template:ABSTRACT PUBMED 9428681

About this Structure

1ZAK is a Single protein structure of sequence from Zea mays. Full crystallographic information is available from OCA.

Reference

Structure, catalysis and supramolecular assembly of adenylate kinase from maize., Wild K, Grafmuller R, Wagner E, Schulz GE, Eur J Biochem. 1997 Dec 1;250(2):326-31. PMID:9428681

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