[aj3537]

Topology diagrams are simple sketches that show the juxtaposition of secondary
structure elements and how these elements are connected in the polypeptide. Cholera
toxin is a protein virulence factor from Vibrio cholera that causes Cholera. The protein is
a homopentamer. Draw a topology diagram for one subunit of cholera toxin.

This is a homework question. I want a program that draws this type of structure for me. I went to TOPS but it wants a PDB code. I did a google search for the code and discovered a million of them and none of them worked in TOPS. Help please. I'm a horrible artist.

Link to TOPS

http://www.tops.leeds.ac.uk/

[AWK]

http://www.rcsb.org/pdb/explore.do?structureId=1xtc

[aj3537]

This gives be the PDB code, but i can't find a single topology diagram using the code: 1xtc.

[AWK]

This site allow you also draw molecule in countless ways. Just find the proper way!