Hi Eduardo, Aha! You can see all the header information from the PDB file (the lines that come before the coordinates). How to do that: open the Model Panel (Favorites... Model Panel) and for the model you are interested in, click "attributes..." Click the "PDB Headers..." button at the bottom of the resulting attributes panel. Currently the header lines are shown in a different order than in the original PDB file (they are sorted alphabetically by type, but wthin each type such as REMARK the order is not changed), so you will have to scroll down to the SOURCE record to see the organism. Best, Elaine On Apr 7, 2006, at 11:29 AM, Eduardo Sanz Garcia wrote:

My real situation: 1. I have File... Fletch by ID using 2ypi 2. I didn't know what source organism they are using to get the structure.

Option a: go to www.pdb.org and obtain the information. Option from chimera?: display the text file 2ypi.pdb to get the necessary information?

I was wondering if there is a command or function to display (the text) of a PDB file.

----- Elaine C. Meng, Ph.D. meng@cgl.ucsf.edu UCSF Computer Graphics Lab and Babbitt Lab Department of Pharmaceutical Chemistry University of California, San Francisco http://www.cgl.ucsf.edu/home/meng/index.html