[gmx-users] make_ndx specific residues backbone in Chain A and B

[RJ]

Dear all,


How do i select different chain backbone in make_ndx ?


i could select the chain A and B desperately but cant select them together.


The manual says 'chain' ch1 [ch2 ..]


I tried as like the manual, but end up with error;


chain A | chain B & r 236-297 | r 321-400 | r 433-512 | r 526-1057 [r 322-598 | r 616-722] & 4




Thanks in advance