There is a separate problem with Thomas' script, though. Many structures
do not have an "OXT" atom at the C-terminus of their polypeptide chains.
It is probably safer to select the C-terminus with:
sele_c = 'last (chain %s and name O and polymer) % chain
I'm aware of that. But I think the more serious problem for such a
statistic is that many PDB files do not contain the full-length protein
and the last O atom is not actually the C-terminus (same with first N atom).
Cheers,
Thomas
--
Thomas Holder
MPI for Developmental Biology
Spemannstr. 35
D-72076 Tübingen
