The heme.defattr file is a link from the URL you already found:
https://www.cgl.ucsf.edu/pipermail/chimera-users/2019-July/015972.html
In the lower part of that page, the link to the defattr file is URL: <http://plato.cgl.ucsf.edu/pipermail/chimera-users/attachments/20190715/ecb1dce6/attachment.obj> ...and you just need to click that and then save it as a plain text file. You can rename that plain text file heme.defattr if you want. I hope this helps, Elaine ----- Elaine C. Meng, Ph.D. UCSF Chimera(X) team Department of Pharmaceutical Chemistry University of California, San Francisco
On Sep 12, 2020, at 9:53 AM, Rio Aquarius <rioxel@gmail.com> wrote:
Hi, I have an issue with heme minimization, Fe atom leaves a heme plane. I saw at least one user had the same issue and got help to solve it (https://www.cgl.ucsf.edu/pipermail/chimera-users/2019-July/015972.html). I could try the protocol described there, but I don't have the heme.defattr file. I hope you can help me with it too. I have attached a pdb file with this issue. <CYP51_min300.pdb>