2poo: Difference between revisions
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[[Image:2poo.jpg|left|200px]] | [[Image:2poo.jpg|left|200px]] | ||
'''THERMOSTABLE PHYTASE IN FULLY CALCIUM LOADED STATE''' | {{Structure | ||
|PDB= 2poo |SIZE=350|CAPTION= <scene name='initialview01'>2poo</scene>, resolution 2.050Å | |||
|SITE= | |||
|LIGAND= <scene name='pdbligand=CA:CALCIUM ION'>CA</scene> | |||
|ACTIVITY= [http://en.wikipedia.org/wiki/3-phytase 3-phytase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.3.8 3.1.3.8] | |||
|GENE= | |||
}} | |||
'''THERMOSTABLE PHYTASE IN FULLY CALCIUM LOADED STATE''' | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
2POO is a [ | 2POO is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Bacillus_amyloliquefaciens Bacillus amyloliquefaciens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2POO OCA]. | ||
==Reference== | ==Reference== | ||
Preliminary X-ray crystallographic analysis of a novel phytase from a Bacillus amyloliquefaciens strain., Ha NC, Kim YO, Oh TK, Oh BH, Acta Crystallogr D Biol Crystallogr. 1999 Mar;55(Pt 3):691-3. PMID:[http:// | Preliminary X-ray crystallographic analysis of a novel phytase from a Bacillus amyloliquefaciens strain., Ha NC, Kim YO, Oh TK, Oh BH, Acta Crystallogr D Biol Crystallogr. 1999 Mar;55(Pt 3):691-3. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/10089471 10089471] | ||
[[Category: 3-phytase]] | [[Category: 3-phytase]] | ||
[[Category: Bacillus amyloliquefaciens]] | [[Category: Bacillus amyloliquefaciens]] | ||
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[[Category: thermostable phytase]] | [[Category: thermostable phytase]] | ||
''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 18:15:41 2008'' | ||
Revision as of 16:15, 20 March 2008
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| 2poo, resolution 2.050Å | |||||||||||||
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| Ligands: | CA | ||||||||||||
| Activity: | 3-phytase, with EC number 3.1.3.8 | ||||||||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||||||||
THERMOSTABLE PHYTASE IN FULLY CALCIUM LOADED STATE
Overview
A novel bacterial phytase from a Bacillus amyloliquefaciens strain was crystallized using the hanging-drop vapour-diffusion method. The amino-acid sequence of the enzyme does not show any homology to those of other known phytases or phosphatases, with the exception of a phytase from Bacillus subtilis. The enzyme exhibits a thermal stability which is strongly dependent on calcium ions. High-quality single crystals of the enzyme in the absence of calcium ions were obtained using a precipitant solution containing 20% 2-methyl-2, 4-pentanediol and 0.1 M MES (pH 6.5). Native diffraction data to 2.0 A resolution were obtained from a flash-frozen crystal at 110 K using a rotating-anode X-ray source. The crystals belong to space group P212121 with unit-cell dimensions a = 50.4, b = 64.1, c = 104. 2 A and contain one monomer per asymmetric unit. Structure determination using heavy-atom derivative crystals is in progress, along with an effort to crystallize the calcium ion bound form of the enzyme.
About this Structure
2POO is a Single protein structure of sequence from Bacillus amyloliquefaciens. Full crystallographic information is available from OCA.
Reference
Preliminary X-ray crystallographic analysis of a novel phytase from a Bacillus amyloliquefaciens strain., Ha NC, Kim YO, Oh TK, Oh BH, Acta Crystallogr D Biol Crystallogr. 1999 Mar;55(Pt 3):691-3. PMID:10089471
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