1kdn
From Proteopedia
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| - | [[Image:1kdn.jpg|left|200px]] | + | [[Image:1kdn.jpg|left|200px]] |
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| - | '''STRUCTURE OF NUCLEOSIDE DIPHOSPHATE KINASE''' | + | {{Structure |
| + | |PDB= 1kdn |SIZE=350|CAPTION= <scene name='initialview01'>1kdn</scene>, resolution 2.0Å | ||
| + | |SITE= | ||
| + | |LIGAND= <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=AF3:ALUMINUM+FLUORIDE'>AF3</scene> and <scene name='pdbligand=ADP:ADENOSINE-5'-DIPHOSPHATE'>ADP</scene> | ||
| + | |ACTIVITY= [http://en.wikipedia.org/wiki/Nucleoside-diphosphate_kinase Nucleoside-diphosphate kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.4.6 2.7.4.6] | ||
| + | |GENE= | ||
| + | }} | ||
| + | |||
| + | '''STRUCTURE OF NUCLEOSIDE DIPHOSPHATE KINASE''' | ||
| + | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1KDN is a [ | + | 1KDN is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Dictyostelium_discoideum Dictyostelium discoideum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1KDN OCA]. |
==Reference== | ==Reference== | ||
| - | AlF3 mimics the transition state of protein phosphorylation in the crystal structure of nucleoside diphosphate kinase and MgADP., Xu YW, Morera S, Janin J, Cherfils J, Proc Natl Acad Sci U S A. 1997 Apr 15;94(8):3579-83. PMID:[http:// | + | AlF3 mimics the transition state of protein phosphorylation in the crystal structure of nucleoside diphosphate kinase and MgADP., Xu YW, Morera S, Janin J, Cherfils J, Proc Natl Acad Sci U S A. 1997 Apr 15;94(8):3579-83. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/9108019 9108019] |
[[Category: Dictyostelium discoideum]] | [[Category: Dictyostelium discoideum]] | ||
[[Category: Nucleoside-diphosphate kinase]] | [[Category: Nucleoside-diphosphate kinase]] | ||
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[[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 12:16:00 2008'' |
Revision as of 10:16, 20 March 2008
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| , resolution 2.0Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | , and | ||||||
| Activity: | Nucleoside-diphosphate kinase, with EC number 2.7.4.6 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
STRUCTURE OF NUCLEOSIDE DIPHOSPHATE KINASE
Overview
Nucleoside diphosphate kinase reversibly transfers the gamma-phosphate of ATP onto its active site histidine. We have investigated the transition state of histidine phosphorylation with the high-resolution crystal structures of the enzyme from Dictyostelium discoideum with MgADP and either aluminium or beryllium fluoride. The bound aluminium fluoride species is the neutral species AlF3 and not the more common AlF4-. AlF3 forms a trigonal bipyramid that makes it an accurate analog of the transition state of the gamma-phosphate of ATP undergoing transfer to the catalytic histidine. Its axial ligands are a histidine nitrogen and a beta-phosphate oxygen. Beryllium fluoride also binds at the same position and with the same ligands but in a tetrahedral geometry resembling the Michaelis complex rather than the transition state. The two x-ray structures show explicit enzyme-substrate interactions that discriminate between the ground and the transition states of the reaction. They also illustrate the partially dissociative geometry of the transition state of phosphoryl transfer and demonstrate the potential applications of metallofluorides for the study of kinase mechanisms.
About this Structure
1KDN is a Single protein structure of sequence from Dictyostelium discoideum. Full crystallographic information is available from OCA.
Reference
AlF3 mimics the transition state of protein phosphorylation in the crystal structure of nucleoside diphosphate kinase and MgADP., Xu YW, Morera S, Janin J, Cherfils J, Proc Natl Acad Sci U S A. 1997 Apr 15;94(8):3579-83. PMID:9108019
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