Mechanism of actin filament nucleation by Vibrio VopL and implications for tandem W domain nucleation
نویسندگان
چکیده
منابع مشابه
The bacterial virulence factors VopL and VopF nucleate actin from the pointed end
VopL and VopF (VopL/F) are tandem WH2-domain actin assembly factors used by infectious Vibrio species to induce actin assembly in host cells. There is disagreement about the filament assembly mechanism of VopL/F, including whether they associate with the filament barbed or pointed end. Here, we used multicolor total internal reflection fluorescence microscopy to directly observe actin assembly ...
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VopL is an effector protein from Vibrio parahaemolyticus that nucleates actin filaments. VopL consists of a VopL C-terminal domain (VCD) and an array of three WASP homology 2 (WH2) motifs. Here, we report the crystal structure of the VCD dimer bound to actin. The VCD organizes three actin monomers in a spatial arrangement close to that found in the canonical actin filament. In this arrangement,...
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ژورنال
عنوان ژورنال: Nature Structural & Molecular Biology
سال: 2011
ISSN: 1545-9993,1545-9985
DOI: 10.1038/nsmb.2109