6vs4 | pdb_00006vs4

Crystal structure of ADP RIBOSYLATION FACTOR-LIKE GTP BINDING PROTEIN /Small COPII coat GTPase SAR1 from Encephalitozoon cuniculi in complex with GDP

spinqualitylabelsall models 6vs4, resolution 2.40Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 6vs4 is a 2 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: GDP, MG, PEG Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function [SAR1_ENCCU] Small GTPase component of the coat protein complex II (COPII) which promotes the formation of transport vesicles from the endoplasmic reticulum (ER). The coat has two main functions, the physical deformation of the endoplasmic reticulum membrane into vesicles and the selection of cargo molecules. SAR1 controls the coat assembly in a stepwise manner. Activated SAR1-GTP binds to membranes first and recruits the SEC23/24 complex. These SEC23/24-SAR1 prebudding intermediates are then collected by the SEC13/31 complex as subunits polymerize to form coated transport vesicles. Conversion to SAR1-GDP triggers coat release and recycles COPII subunits (By similarity).

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