You can find the trimmed version of 1c4z.pdb in RosettaExamples/RosettaUserGuide/AlanineScanExample/ which can be downloaded from the software section of rosettacommons.
> I am new to Rosetta.
> I would like to try the Alanine scanning example under the heading Design of Protein Protein Interactions – available at http://www.rosettacommons.org/tiki/tiki-index.php?page=Quick+Start&highlight=prepack#Prepacking_the_Starting_Structures
> I did not find the trimmed down version of 1c4z.pdb structure file in the Rosetta 2.0, 2.1.1 or 2.3.0
> Could someone please let me know where is it located. I can as well download the structure from PDB but would like to follow the example for my understanding.
> I will appreciate any help in this regard.
> Thank you.