1cvm
From Proteopedia
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[[Image:1cvm.gif|left|200px]] | [[Image:1cvm.gif|left|200px]] | ||
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'''CADMIUM INHIBITED CRYSTAL STRUCTURE OF PHYTASE FROM BACILLUS AMYLOLIQUEFACIENS''' | '''CADMIUM INHIBITED CRYSTAL STRUCTURE OF PHYTASE FROM BACILLUS AMYLOLIQUEFACIENS''' | ||
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[[Category: Oh, B H.]] | [[Category: Oh, B H.]] | ||
[[Category: Shin, S.]] | [[Category: Shin, S.]] | ||
- | [[Category: | + | [[Category: Thermostable bacillus phytase phytate phosphatase cadmium calcium]] |
- | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 13:09:30 2008'' | |
- | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + |
Revision as of 10:09, 2 May 2008
CADMIUM INHIBITED CRYSTAL STRUCTURE OF PHYTASE FROM BACILLUS AMYLOLIQUEFACIENS
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
1CVM 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 Page seeded by OCA on Fri May 2 13:09:30 2008