4ds7

Crystal structure of yeast calmodulin bound to the C-terminal fragment of spindle pole body protein Spc110

spinqualitylabelsall models 4ds7, resolution 2.15Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 4ds7 is a 8 chain structure with sequence from Kluyveromyces lactis NRRL Y-1140 and Saccharomyces cerevisiae S288C. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.15Å Ligands: GOL, SO4, SR Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function CALM_KLULA Calmodulin mediates the control of a large number of enzymes, ion channels and other proteins by Ca(2+). Among the enzymes to be stimulated by the calmodulin-Ca(2+) complex are a number of protein kinases and phosphatases. Publication Abstract from PubMed Microtubule organizing centers (MTOCs) form, anchor and stabilize the polarized network of microtubules in a cell. The central MTOC is the centrosome that duplicates during the cell cycle and during mitosis assembles a bipolar spindle to capture and segregate sister chromatids. Yet, despite their importance in cell biology, the physical structure of MTOCs is poorly understood. Here we determine the molecular architecture of the core of the yeast spindle pole body (SPB) by Bayesian integrative structure modeling based on in vivo FRET, small-angle X-ray scattering (SAXS), X-ray crystallography, electron microscopy and two-hybrid analysis. The model is validated by several methods that include a genetic analysis of the conserved PACT domain that recruits Spc110, a protein related to pericentrin, to the SPB. The model suggests that calmodulin can act as a protein cross-linker and Spc29 is an extended, flexible protein. The model led to the identification of a single, essential heptad in the coiled coil of Spc110 and a minimal PACT domain. It also led to a proposed pathway for the integration of Spc110 into the SPB. The molecular architecture of the yeast spindle pole body core determined by Bayesian integrative modeling.,Viswanath S, Bonomi M, Kim SJ, Klenchin VA, Taylor KC, Yabut KC, Umbreit NT, Van Epps HA, Meehl J, Jones MH, Russel D, Velazquez-Muriel JA, Winey M, Rayment I, Davis TN, Sali A, Muller EG Mol Biol Cell. 2017 Aug 16. pii: mbc.E17-06-0397. doi: 10.1091/mbc.E17-06-0397. PMID:28814505 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Calmodulin 3D structures

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