3f41 | pdb_00003f41

Structure of the tandemly repeated protein tyrosine phosphatase like phytase from Mitsuokella multacida

spinqualitylabelsall models 3f41, resolution 2.30Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 3f41 is a 2 chain structure with sequence from Mitsuokella multacida. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.3Å Ligands: EDO, PO4 Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function A3QMF6_9FIRM Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMed Mitsuokella multacida expresses a unique inositol polyphosphatase (PhyAmm) that is composed of tandem repeats (TRs). Each repeat possesses a protein tyrosine phosphatase (PTP) active-site signature sequence and fold. Using a combination of structural, mutational, and kinetic studies, we show that the N-terminal (D1) and C-terminal (D2) active sites of the TR have diverged and possess significantly different specificities for inositol polyphosphate. Structural analysis and molecular docking calculations identify steric and electrostatic differences within the substrate binding pocket of each TR that may be involved in the altered substrate specificity. The implications of our results for the biological function of related PTP-like phytases are discussed. Finally, the structures and activities of PhyAmm and tandemly repeated receptor PTPs are compared and discussed. To our knowledge, this is the first example of an inositol phosphatase with tandem PTP domains possessing substrate specificity for different inositol phosphates. Structural analysis of a multifunctional, tandemly repeated inositol polyphosphatase.,Gruninger RJ, Selinger LB, Mosimann SC J Mol Biol. 2009 Sep 11;392(1):75-86. Epub 2009 Jun 3. PMID:19500593 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Phytase 3D structures

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