How to separate proteins on the same chain?

Question

[Zayyan]

Hello All,

I am using this structure https://www.rcsb.org/structure/5N2S

I want to separate out just the receptor and remove the cytochrome. Problem being there are in the same chain

Thanks!

Answer 1

[Mensur Dlakic]

PDB files are plain text. Simply open in any text editor - so not MS Word - and delete whatever you don't need. In your case this probably means removing all HETATM lines at the end.

Answer 2

[Jeremy]

If you're using PyMol, you can hide the residues that you don't want to see. First, click "Display > Sequence" to see the amino acid sequence. Then highlight the residues that you want to hide. On the right, the highlighted residues will be indicated by "(sele)". Next to "(sele)", click "H > everything" to hide the residues that you've highlighted.