1dko: Difference between revisions
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[[Image:1dko.gif|left|200px]] | [[Image:1dko.gif|left|200px]] | ||
'''CRYSTAL STRUCTURE OF TUNGSTATE COMPLEX OF ESCHERICHIA COLI PHYTASE AT PH 6.6 WITH TUNGSTATE BOUND AT THE ACTIVE SITE AND WITH HG2+ CATION ACTING AS AN INTERMOLECULAR BRIDGE''' | {{Structure | ||
|PDB= 1dko |SIZE=350|CAPTION= <scene name='initialview01'>1dko</scene>, resolution 2.380Å | |||
|SITE= | |||
|LIGAND= <scene name='pdbligand=HG:MERCURY+(II)+ION'>HG</scene> and <scene name='pdbligand=WO4:TUNGSTATE(VI)ION'>WO4</scene> | |||
|ACTIVITY= [http://en.wikipedia.org/wiki/Acid_phosphatase Acid phosphatase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.3.2 3.1.3.2] | |||
|GENE= | |||
}} | |||
'''CRYSTAL STRUCTURE OF TUNGSTATE COMPLEX OF ESCHERICHIA COLI PHYTASE AT PH 6.6 WITH TUNGSTATE BOUND AT THE ACTIVE SITE AND WITH HG2+ CATION ACTING AS AN INTERMOLECULAR BRIDGE''' | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
1DKO is a [ | 1DKO is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1DKO OCA]. | ||
==Reference== | ==Reference== | ||
Crystal structures of Escherichia coli phytase and its complex with phytate., Lim D, Golovan S, Forsberg CW, Jia Z, Nat Struct Biol. 2000 Feb;7(2):108-13. PMID:[http:// | Crystal structures of Escherichia coli phytase and its complex with phytate., Lim D, Golovan S, Forsberg CW, Jia Z, Nat Struct Biol. 2000 Feb;7(2):108-13. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/10655611 10655611] | ||
[[Category: Acid phosphatase]] | [[Category: Acid phosphatase]] | ||
[[Category: Escherichia coli]] | [[Category: Escherichia coli]] | ||
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[[Category: histidine acid phosphatase fold]] | [[Category: histidine acid phosphatase fold]] | ||
''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 10:39:59 2008'' | ||
Revision as of 11:40, 20 March 2008
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| , resolution 2.380Å | |||||||
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| Ligands: | and | ||||||
| Activity: | Acid phosphatase, with EC number 3.1.3.2 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
CRYSTAL STRUCTURE OF TUNGSTATE COMPLEX OF ESCHERICHIA COLI PHYTASE AT PH 6.6 WITH TUNGSTATE BOUND AT THE ACTIVE SITE AND WITH HG2+ CATION ACTING AS AN INTERMOLECULAR BRIDGE
OverviewOverview
Phytases catalyze the hydrolysis of phytate and are able to improve the nutritional quality of phytate-rich diets. Escherichia coli phytase, a member of the histidine acid phosphatase family has the highest specific activity of all phytases characterized. The crystal structure of E. coli phytase has been determined by a two-wavelength anomalous diffraction method using the exceptionally strong anomalous scattering of tungsten. Despite a lack of sequence similarity, the structure closely resembles the overall fold of other histidine acid phosphatases. The structure of E. coli phytase in complex with phytate, the preferred substrate, reveals the binding mode and substrate recognition. The binding is also accompanied by conformational changes which suggest that substrate binding enhances catalysis by increasing the acidity of the general acid.
About this StructureAbout this Structure
1DKO is a Single protein structure of sequence from Escherichia coli. Full crystallographic information is available from OCA.
ReferenceReference
Crystal structures of Escherichia coli phytase and its complex with phytate., Lim D, Golovan S, Forsberg CW, Jia Z, Nat Struct Biol. 2000 Feb;7(2):108-13. PMID:10655611
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