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# ss_xfer.pml: Copies secondary structure from a source protein
# over to a target protein. Residue identifiers must match perfectly.
fetch 1t46, async=0
copy source, 1t46
#load 1t46.pdb, source
fetch 1pkg, async=0
copy target, 1pkg
#load 1pkg.pdb, target
# remove all secondary structure assignments
alter all, ss=''
# show unassigned cartoon
as cartoon
# assign sequence to source
dss source
# now read and store assignments based on residue #'s
stored.ss = {}
iterate source and polymer and name CA, stored.ss[resi]=ss
# and assign them to the target protein
alter target and polymer and name CA, ss=stored.ss.get(resi,'')
# rebuild the cartoon
rebuild
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