6iht

Crystal structure of bacterial serine phosphatase bound with phosphorylated peptide

spinqualitylabelsall models 6iht, resolution 1.57Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 6iht is a 2 chain structure with sequence from Peptide display vector fth1 and Staphylococcus aureus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 1.569Å Ligands: MG, MN, SEP Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function Q9RL81_STAAU Publication Abstract from PubMed Staphylococcus aureus Stp1, which belongs to the bacterial metal-dependent protein phosphatase (PPM) family, is a promising candidate for antivirulence targeting. How Stp1 recognizes the phosphorylated peptide remains unclear, however. In order to investigate the recognition mechanism of Stp1 in depth, we have determined a series of crystal structures of S. aureus Stp1 in different states and the structural complex of Stp1 bound with a phosphorylated peptide His12. Different phosphorylated peptides, including MgrA- and GraR-derived phosphopeptides, are substrates of Stp1, which supports the function of Stp1 as a selective Ser/Thr phosphatase. In addition, interestingly, the crystal structures of R161-Stp1 variants combined with the biochemical activity validations have uncovered that R161 residue plays a key role to control the conformation switches of the flap domain in order to facilitate substrate binding and the dephosphorylation process. Our findings provide crucial structural insight into the molecular mechanism of S. aureus Stp1 phosphatase and reveal the phosphorylated peptides for biochemistry study and inhibitor screening of Stp1. Structural Insight into the Mechanism of Staphylococcus aureus Stp1 Phosphatase.,Yang T, Liu T, Gan J, Yu K, Chen K, Xue W, Lan L, Yang S, Yang CG ACS Infect Dis. 2019 Jun 14;5(6):841-850. doi: 10.1021/acsinfecdis.8b00316. Epub , 2019 Mar 25. PMID:30868877 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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