[Chimera-users] Finding disulphide bonds

[Eric Pettersen]

Hi Prathvi,
	Assuming that 'm' is your protein model, then the code would be:

from ChemGroup import findGroup
disulfides = findGroup("disulfide", [m])
num_disulfides = len(disulfides)

--Eric

	Eric Pettersen
	UCSF Computer Graphics Lab


> On Nov 7, 2022, at 12:32 AM, Prathvi Singh via Chimera-users <chimera-users at cgl.ucsf.edu> wrote:
> 
> Hi Elaine,
> 
> I have found out a way to select the disulphide bonded CYS residues in UCSF chimera using the command: select disulphide.
> 
> However, is there a way to count the number of disulphide bridges in a protein and save in a variable?
> 
> -- 
> Prathvi Singh,
> Research Fellow,
> Department of Biological Sciences & Bioengineering,
> Indian Institute of Technology, Kanpur-208016
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