From: Seibold, Steve Allan (stevesei_at_ku.edu)
Date: Wed Jan 02 2019 - 13:44:08 CST

Hello
I think this is a simple problem, but I can't seem to fix it...

I have loaded into vmd my psf file and the accompanying dcd file.

Then, using the TkConsole,:
>set sel1 [atomselect top "protein and resid 450"]
>atomselect0
>set sel2 [atomselect top "protein and resid 471"]
>atomselect1
>source distance.tcl
>distance $sel1 $sel2 10 test-r.dat test-d.dat
Atomselect: cannot parse selection text : atomselect0
>$sel1 get resname
GLY GLY GLY GLY GLY GLY GLY GLY GLY

GLY is the first three residues of the peptide...450, 451, 452...

Can someone tell me what I am doing incorrectly?

Thanks, Steve