[Chimera-users] DNA superposition

Marco Sette sette at uniroma2.it
Mon May 15 03:30:59 PDT 2017


Hi all,

If I select multiple models of a protein-DNA complex
select #0:1-40.B #1:1-40.B #2:1-40.B #3:1-40.B #4:1-40.B #5:1-40.B 
#6:1-40.B #7:1-40.B
where B is the DNA and then match
match #0 #1 #2 #3 #4 #5 #6 #7
I obtain a message about the RMSD so it is working, but no superposition 
on the monitor...

Also, selection of part of the models
select #5:1-40.B #6:1-40.B #7:1-40.B
followed by
match #5 #6 #7
Report an error like
"an even number of space-separated atom specs are required"
Why? All atoms were selected. And in the previous case, where 8 models 
were selected using the same procedure, this message does not appear.

In both cases selection is done properly (as judged from the monitor) 
but the match command gives a not clear response.
All DNA models have the same sequence. I miss something...
I'm using version 1.11 of Chimera on Linux Ubuntu.

Thanks for your help,
Marco


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