Search found 5 matches

by lewis martin
Fri Sep 22, 2023 2:27 pm
Forum: OpenMM
Topic: What type of bond determines a molecule in a barostat?
Replies: 2
Views: 385

What type of bond determines a molecule in a barostat?

Hi all, I'd like to restrain a ligand to a bound pose in a (also restrained) protein pocket, in a system along with a barostat. I could use CustomExternalForce, but that is locked to an absolute position in space - and a barostat might keep moving the COMs of the ligand and protein away from that ab...
by lewis martin
Mon Nov 08, 2021 7:57 pm
Forum: OpenMM
Topic: OpenMM 7.7 beta
Replies: 1
Views: 179

Re: OpenMM 7.7 beta

Thank you for the updateParametersInContext() update! I'll post here if any feedback.
by lewis martin
Wed Nov 03, 2021 2:26 am
Forum: OpenMM
Topic: What is the functional form of the AmoebaOutOfPlaneBendForce?
Replies: 2
Views: 98

What is the functional form of the AmoebaOutOfPlaneBendForce?

Hi, I'd like to use the AmoebaOutOfPlaneBendForce to achieve ring planarity. Could someone please explain the functional form this uses? The AMOEBA forcefield paper refers to it as: "out-of-plane bending was restrained at sp2-hybridized trigonal centers with a Wilson-Decius cross function, 27" 27. W...