1zak: Difference between revisions
No edit summary |
No edit summary |
||
| Line 1: | Line 1: | ||
[[Image:1zak.jpg|left|200px]] | [[Image:1zak.jpg|left|200px]] | ||
'''ADENYLATE KINASE FROM MAIZE IN COMPLEX WITH THE INHIBITOR P1,P5-BIS(ADENOSINE-5'-)PENTAPHOSPHATE (AP5A)''' | {{Structure | ||
|PDB= 1zak |SIZE=350|CAPTION= <scene name='initialview01'>1zak</scene>, resolution 3.5Å | |||
|SITE= | |||
|LIGAND= <scene name='pdbligand=AP5:BIS(ADENOSINE)-5'-PENTAPHOSPHATE'>AP5</scene> | |||
|ACTIVITY= [http://en.wikipedia.org/wiki/Adenylate_kinase Adenylate kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.4.3 2.7.4.3] | |||
|GENE= | |||
}} | |||
'''ADENYLATE KINASE FROM MAIZE IN COMPLEX WITH THE INHIBITOR P1,P5-BIS(ADENOSINE-5'-)PENTAPHOSPHATE (AP5A)''' | |||
==Overview== | ==Overview== | ||
| Line 7: | Line 16: | ||
==About this Structure== | ==About this Structure== | ||
1ZAK is a [ | 1ZAK is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Zea_mays Zea mays]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ZAK OCA]. | ||
==Reference== | ==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:[http:// | 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:[http://www.ncbi.nlm.nih.gov/pubmed/9428681 9428681] | ||
[[Category: Adenylate kinase]] | [[Category: Adenylate kinase]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
| Line 20: | Line 29: | ||
[[Category: transferase]] | [[Category: transferase]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 15:33:11 2008'' | ||
Revision as of 16:33, 20 March 2008
| |||||||
| , resolution 3.5Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | |||||||
| Activity: | Adenylate kinase, with EC number 2.7.4.3 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
ADENYLATE KINASE FROM MAIZE IN COMPLEX WITH THE INHIBITOR P1,P5-BIS(ADENOSINE-5'-)PENTAPHOSPHATE (AP5A)
OverviewOverview
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.
About this StructureAbout this Structure
1ZAK is a Single protein structure of sequence from Zea mays. Full crystallographic information is available from OCA.
ReferenceReference
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
Page seeded by OCA on Thu Mar 20 15:33:11 2008