ArticleActa crystallographica. Section F, Structural biology communications2014
Preparation, purification, crystallization and preliminary crystallographic analysis of dual-domain β-propeller phytase from Bacillus sp. HJB17.
Article in Acta crystallographica. Section F, Structural biology communications, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed, 6 citations in OpenAlex.
- Research status of3 Biotech · 2021Review
- Crystallization and X-ray diffraction analysis of native and selenomethionine-substituted PhyH-DI from Bacillus sp. HJB17.Acta crystallographica. Section F, Structural biology communications · 2017Article
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9 authors at 3 institutions in 1 country.
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Abstract
β-Propeller phytases (BPPs) are abundant in nature. Recently, dual-domain BPPs have been found in which the typical BPP domain is responsible for phytate hydrolysis. The dual-domain BPP (PhyH) from Bacillus sp. HJB17 was obtained with an incomplete N-terminal BPP domain (PhyH-DI; residues 41-318) and a typical BPP domain (PhyH-DII; residues 319-644) at the C-terminus. PhyH-DI was found to act synergistically (with a 1.2-2.5-fold increase in phosphate release) with PhyH-DII, other BPPs (PhyP and 168PhyA) and a histidine acid phosphatase. The structure of PhyH was therefore studied with the aim of explaining these functions. PhyH with the secreted signal peptide of the first 40 amino acids deleted (PhyHT) was cloned and expressed in Escherichia coli. Purified and active PhyHT protein was obtained by refolding from the precipitant. PhyHT was crystallized using the vapour-diffusion method. The crystal grew in a condition consisting of 0.2 M sodium acetate trihydrate, 0.1 M Tris-HCl pH 9.5, 25%(w/v) polyethylene glycol 4000 using 1 mg ml(-1) protein solution at 289 K. A complete data set was collected from a crystal to 2.85 Å resolution using synchrotron radiation at 100 K. The crystal belonged to space group P1211, with unit-cell parameters a = 46.82, b = 140.19, c = 81.94 Å, α = 90.00, β = 92.00, γ = 90.00°. The asymmetric unit was estimated to contain one molecule of PhyHT.
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