On Jun 5, 2018, at 6:38 PM, Modeller Caretaker <modeller-care@salilab.org> wrote:

On 6/5/18 12:26 PM, Richard E. Gillilan wrote:
Trying to hold a range of atoms rigid during optimization.

In most cases it's easier and more efficient to do that by simply excluding the atoms from the optimization, by defining select_atoms as per https://salilab.org/modeller/9.20/manual/node23.html

Nice idea! I can do this for one of the rigid bodies. The other, which isn’t defined yet in the code snip I sent, needs to move relative to the other, so I’m thinking it will have to be defined as a true rigid body. 

I get an error message. Can anyone spot what I’m doing wrong here?
r1 = rigid_body(self.residue_range('152:A','384:A'))

Sure, you are trying to make a rigid body containing another rigid body, which isn't supported in Modeller. If you want to go the rigid body route the following should work:

Ah ha! I see I split a line and accidentally duplicated the rigid_body function. Funny how you can stare at something simple and just not see it. Thanks!

r1 = rigid_body(self.residue_range('152:A','384:A'))

Ben Webb, Modeller Caretaker
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