Hi Elaine:

I am referring to Oct 28, 2005, at 9:50 AM, Eric Gillitzer wrote:
 and your answer:

command: select :45.a-d > or > command: select :45.* > > Or, to select residue 45 in just chains A and D: > > command: select :45.a,45.d

I have a more complex case, where chains are defined by segname, 
for example

A1 A2 A3 A4 A5 etc

while the standard PDB definition is "A" for all them.

The same for standard "B", "C" etc.

As I want to display a movie of ligand pathways, where the ligand 
moves from, say, "A1" to, say, "F3", I want in the first instance
become able to select particular residues in particular chains,
as defined by their segname.

Could you imagine a simple way not requiring selection by atom numbers?

Thanks

francesco pietra
.