4xih | pdb_00004xih

Crystal structure of the R116A mutant AhpE from Mycobacterium tuberculosis

spinqualitylabelsall models 4xih, resolution 2.25Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 4xih is a 2 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Related: 1xxu, 4x0x, 1xvw, 4x1u Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Publication Abstract from PubMed Peroxiredoxins catalyze the reduction of peroxides, a process of vital importance to survive oxidative stress. A nucleophilic cysteine, also known as the peroxidatic cysteine, is responsible for this catalytic process. We used the Mycobacterium tuberculosis alkyl hydroperoxide reductase E (MtAhpE) as a model to investigate the effect of the chemical environment on the specificity of the reaction. Using an integrative structural (R116A - PDB ; F37H - PDB ), kinetic and computational approach, we explain the mutational effects of key residues in its environment. This study shows that the active site residues are specifically oriented to create an environment which selectively favours a reaction with peroxides. The active site architecture in peroxiredoxins: a case study on Mycobacterium tuberculosis AhpE.,Pedre B, van Bergen LA, Pallo A, Rosado LA, Dufe VT, Molle IV, Wahni K, Erdogan H, Alonso M, Proft F, Messens J Chem Commun (Camb). 2016 Jul 29. PMID:27471753 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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