
1 BUILDING A STRUCTURAL MODEL OF KCSA 7
Figure 2: Molecules in file 1K4C.pdb
Now that the file is loaded, you can explore it by trying out different selections
and drawing options, and use the Query mouse mode (Mouse menu, or shortcut
0) to see information about individual atoms. Get familiar with the structure
and be sure that you have identified KcsA as the chain that contains α-helices.
Try to identify the file contents mentioned above, and which chain each belongs
to.
6 Once you are done exploring the structure, close VMD.
Webpdb. VMD can download a pdb file from the Protein Data
Bank if a network connection is available. Just type the four letter
co de of the protein in the File Name text entry of the Molecule File
Browser window and press the Load button. VMD will download it
automatically.
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