Dear list,

today I realized that if I create a single PDB file of a biological unit (i.e. 
a tetramer of monomers) the secondary structure information isn't kept. The way 
I create such a file is:

fetch 2RH2, type=pdb1
split_states 2RH2, 
delete 2RH2
alter all, segi = model[-4:]
rewind
save 2RH2_tetra.pdb, all

If I open this file the secondary structure of each monomer in the tetramer 
visualized by "show cartoon" isn't the same as before saving (i.e. beta-sheets 
length is different etc.). Any ideas why?

Thank you very much,

Dipl.-Ing. Maximilian Ebert

Étudiant au doctorat en biochimie
Laboratoire du Dr. Joelle Pelletier
Université de Montréal

[email protected]


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