I am using NCS restraints with TLS. It seems that the NCS B-factor
restraints are applied to the overall B-factor, rather than just the
non-TLS part. Is this correct?
In my structure, the disorder varies quite a bit among equivalent
molecules, and I don't get good results unless the b_factor_weight is
about 1e-3 or less.
I am experimenting with NCS restraints in CNS, where each pair of
coordinates allows an LSQ fit of B-factor scale and offset to be
excluded from the B restraints. It would probably work even better with
TLS, which CNS does not have. I don't know if anyone has tried this, but
I think that overall molecular B-factor differences are fairly common.
Joe Krahn
