Pymol might expand using all read NMR models.
When I only read 1 model the behaviour is as expected: 5 atoms get selected.
Weird, when reading all NMR models and checking one distance with one of the unexpected 17 atoms selected:
You clicked /pdb2hgh//A/ZN`191/ZN -> (pk1)
You clicked /pdb2hgh//A/HIS`129/CE1 -> (pk2)
Executive: object "dist01" created.
The minimum distance is 3.14 in model 17 out of 20, so it appears as something is wrong.
On PDB entry 2hgh try:
PyMOL>select s,(resi 191 & name zn) expand 2.3
Selector: selection "s" defined with 17 atoms.
but I expected only the zn and the 4 coordinating atoms. Can somebody explain why it's including atoms that are further away?
Jurgen F. Doreleijers, Ph.D.
BMRB, Univ. of Wisconsin-Madison, WI, USA