[PyMOL] How to assign secondary structure as 3-10 helix in pymol?

[sunyeping <sun...@al...>]

Dear pymol user,

I wonder why sometimes the secondary structure of a protein can not be displayed incorrect in pymol. I have a structure, some residues are predicted to be sheet or 3-10 helix with DSSP, but they are displayed as loop. Only typing "dss" command in pymol doesn't work. I know by using the "alter" commad the secondary structures can be assigned. The following command:

alter 61-63/, ss='S' 

can assign residue 61-63 as sheet. However, what is the command to assign residues as 3-10 helix?

Thank you in advance.

Arthur