Hi,
Atom masks in ptraj have residue and atom lists separate, so instead of:
> distance dist_73-84_139-150 :73.CA-84.CA :139.CA-150.CA out distance.dat
try:
distance dist_73-84_139-150 :73-84.CA :139-150.CA out distance.dat
-Dan
--
-------------------------
Daniel R. Roe, PhD
Postdoctoral Associate
BioMaPS Institute, Rutgers University
610 Taylor Road
Piscataway, NJ 08854
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Received on Fri Dec 16 2011 - 07:00:02 PST