5lao

S-nitrosylated 3D NMR structure of the cytoplasmic rhodanese domain of the inner membrane protein YgaP from Escherichia coli

spinqualitylabelsall models 5lao Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 5lao is a 1 chain structure with sequence from Escherichia coli K-12. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: Solution NMR Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function YGAP_ECOLI Publication Abstract from PubMed S-Nitrosylation is well established as an important post-translational regulator in protein function and signaling. However, relatively little is known about its structural and dynamical consequences. We have investigated the effects of S-nitrosylation on the rhodanese domain of the Escherichia coli integral membrane protein YgaP by NMR, X-ray crystallography, and mass spectrometry. The results show that the active cysteine in the rhodanese domain of YgaP is subjected to two competing modifications: S-nitrosylation and S-sulfhydration, which are naturally occurring in vivo. It has been observed that in addition to inhibition of the sulfur transfer activity, S-nitrosylation of the active site residue Cys63 causes an increase in slow motion and a displacement of helix 5 due to a weakening of the interaction between the active site and the helix dipole. These findings provide an example of how nitrosative stress can exert action at the atomic level. S-Nitrosylation Induces Structural and Dynamical Changes in a Rhodanese Family Protein.,Eichmann C, Tzitzilonis C, Nakamura T, Kwiatkowski W, Maslennikov I, Choe S, Lipton SA, Riek R J Mol Biol. 2016 Jul 27. pii: S0022-2836(16)30255-8. doi:, 10.1016/j.jmb.2016.07.010. PMID:27473602 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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