ArticleActa crystallographica. Section F, Structural biology and crystallization communications2013
Crystallization and preliminary X-ray diffraction analysis of a high-affinity phosphate-binding protein endowed with phosphatase activity from Pseudomonas aeruginosa PAO1.
Article in Acta crystallographica. Section F, Structural biology and crystallization communications, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
In prokaryotes, phosphate starvation induces the expression of numerous phosphate-responsive genes, such as the pst operon including the high-affinity phosphate-binding protein (PBP or pstS) and alkaline phosphatases such as PhoA. This response increases the cellular inorganic phosphate import efficiency. Notably, some Pseudomonas species secrete, via a type-2 secretion system, a phosphate-binding protein dubbed LapA endowed with phosphatase activity. Here, the expression, purification, crystallization and X-ray data collection at 0.87 Å resolution of LapA are described. Combined with biochemical and enzymatic characterization, the structure of this intriguing phosphate-binding protein will help to elucidate the molecular origin of its phosphatase activity and to decipher its putative role in phosphate uptake.
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