2n9b

Solution NMR Structure of Antiparallel Myosin-10:GCN4 Tandem Coiled-Coil

spinqualitylabelsall models 2n9b Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 2n9b is a 2 chain structure with sequence from Bos taurus and Saccharomyces cerevisiae S288C. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance. Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function MYO10_BOVIN In hippocampal neurons it induces the formation of dendritic filopodia by trafficking the actin-remodeling protein VASP to the tips of filopodia, where it promotes actin elongation (By similarity). Myosins are actin-based motor molecules with ATPase activity. Unconventional myosins serve in intracellular movements. MYO10 binds to actin filaments and actin bundles and functions as plus end-directed motor. The tail domain binds to membranous compartments containing phosphatidylinositol 3,4,5-trisphosphate, which are then moved relative to actin filaments. Stimulates the formation and elongation of filopodia. Regulates cell shape, cell spreading and cell adhesion. Plays a role in formation of the podosome belt in osteoclasts. GCN4_YEAST Is a transcription factor that is responsible for the activation of more than 30 genes required for amino acid or for purine biosynthesis in response to amino acid or purine starvation. Binds and recognize the DNA sequence: 5'-TGA[CG]TCA-3'. Publication Abstract from PubMed Coiled-coil fusions are a useful approach to enforce dimerization in protein engineering. However, the final structures of coiled-coil fusion proteins have received relatively little attention. Here, we determine the structural outcome of adjacent parallel and antiparallel coiled coils. The targets are coiled coils that stabilize myosin-10 in single-molecule biophysical studies. We reveal the solution structure of a short, antiparallel, myosin-10 coiled-coil fused to the parallel GCN4-p1 coiled coil. Surprisingly, this structure is a continuous, antiparallel coiled coil where GCN4-p1 pairs with myosin-10 rather than itself. We also show that longer myosin-10 segments in these parallel/antiparallel fusions are dynamic and do not fold cooperatively. Our data resolve conflicting results on myosin-10 selection of actin filament bundles, demonstrating the importance of understanding coiled-coil orientation and stability. Competition between Coiled-Coil Structures and the Impact on Myosin-10 Bundle Selection.,Vavra KC, Xia Y, Rock RS Biophys J. 2016 Jun 7;110(11):2517-2527. doi: 10.1016/j.bpj.2016.04.048. PMID:27276269 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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