[phenixbb] autobuild : use of ncs

Lepore, Bryan Bryan.Lepore at umassmed.edu
Wed Sep 22 09:01:58 PDT 2010

i read and see that autobuild finds ncs automatically and uses it. i have one .pdb with one copy of the model for segid's A and B, and chainid's A and B.

however, i notice sometimes in density modification that ncs has "NO" flags as to its use, and the output .pdb's have a single chain in them. refinement has sensible .eff's and such for ncs, there's find_ncs_* output, but some .log's suggest it is not specified or used.

so just generally, how is ncs used - e.g. is it strict, which would explain a single chain the output .pdb?


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