1ibi

QUAIL CYSTEINE AND GLYCINE-RICH PROTEIN, NMR, 15 MINIMIZED MODEL STRUCTURES

spinqualitylabelsall models 1ibi Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 1ibi is a 1 chain structure with sequence from Coturnix japonica. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: Solution NMR Ligands: ZN Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function CSRP2_COTJA Interacts with zyxin. May be a component of a signal transduction pathway that mediates adhesion-stimulated changes in gene expression. Totally down-regulated in transformed cells. 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 The solution structure of quail CRP2(LIM2) was significantly improved by using an increased number of NOE constraints obtained from a 13C,15N-labeled protein sample and by applying a recently developed triple-resonance cross-correlated relaxation experiment for the determination of the backbone dihedral angle psi. Additionally, the relative orientation of the 15N(i)-1HN(i) dipole and the 13CO(i) CSA tensor, which is related to both backbone angles phi and psi, was probed by nitrogen-carbonyl multiple-quantum relaxation and used as an additional constraint for the refinement of the local geometry of the metal-coordination sites in CRP2(LIM2). The backbone dynamics of residues located in the folded part of CRP2(LIM2) have been characterized by proton-detected 13C'(i-1)-15N(i) and 15N(i)-1HN(i) multiple-quantum relaxation, respectively. We show that regions having cross-correlated time modulation of backbone isotropic chemical shifts on the millisecond to microsecond time scale correlate with residues that are structurally altered in the mutant protein CRP2(LIM2)R122A (disruption of the CCHC zinc-finger stabilizing side-chain hydrogen bond) and that these residues are part of an extended hydrogen-bonding network connecting the two zinc-binding sites. This indicates the presence of long-range collective motions in the two zinc-binding subdomains. The conformational plasticity of the LIM domain may be of functional relevance for this important protein recognition motif. Application of cross-correlated NMR spin relaxation to the zinc-finger protein CRP2(LIM2): evidence for collective motions in LIM domains.,Schuler W, Kloiber K, Matt T, Bister K, Konrat R Biochemistry. 2001 Aug 14;40(32):9596-604. PMID:11583159 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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