The atomic coordinates of VP1 are displayed using various molecular rendering techniques: molecular surface, space filling, wireframe, ball-and-stick, and ribbon diagram. The space-filling representation plots the positions of atoms; wireframe and ball-and-stick representations identify chemical bonds as well as atom positions. The protein's secondary structure (i.e. local structural elements such as alpha-helix or beta-sheet (Chothia et al., 1977)) can be examined with a plot of the alpha-carbon backbone, or preferably, with a ribbon diagram (Richardson, 1985).
Fig. 1: rendered as a molecular surface using Grasp.
Fig. 2: rendered as space-filling using MIDAS.
Fig. 3: rendered as wireframe using SYBYL
Fig. 4: rendered as ball-and-stick using SYBYL
Fig. 5: rendered as a ribbon diagram using Ribbons
Fig. 6: alpha-carbon backbone, rendered as wireframe using SYBYL.
Chothia, C., M. Levitt, D. Richardson. 1977. Structure of proteins: packing of alpha-helices and pleated sheets. Proc. Natl. Acad. Sci. USA 74:4130-4134.
Richardson, J.S. 1985. Schematic drawings of protein structures. Methods Enzymol. 115:359-380.
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© 1994 Jean-Yves Sgro and Stephan M. Spencer. Institute for Molecular Virology/ jsgro@facstaff.wisc.edu