[BetaAmyloid]

Tubules Microtubules Tubulin Alpha/Beta/Gamma/Delta/Epsilon Tubulin Multiple parts under each greek word (For example, TUBA1A)

So, I'm looking into how to draw (through a program, preferably ChemSketch) a extremely complex protein such as TUBA1A and all of its multiple cousins. Can someone give me any ideas of how to draw something like this, where to get it a molecular structural drawing, or if it is made up of sub-units that could be drawn to recreate the whole picture:

TUBA1A (From Wikipedia)



Are there similar structures between different tubulin; What are the different structures between tubulin?

Thanks.

If this cannot be drawn or cannot be found as a molecular structural drawing via the internet, please give me a site, link, place where I can go to purchase the drawing.

[Yggdrasil]

Pymol (www.pymol.org) is commonly used to display the structures of large biological molecules such as proteins.  You can search for an download files to display at the protein databank (www.rcsb.org/pdb).  I don't know if Pymol has drawing capabilities, however.

[BetaAmyloid]

Thank you yggdrasil!