[Chimera-users] structure editing query

[Bala subramanian]

Friends,
I am trying to modify the sugar of a nucleotide. I am interested in making a
linkage of two carbons in the sugar as in the attached pdb. I tried to use
the Build structure -> modify structure option but it does not work in the
sense that when i select carbon atom (c2') and tried to connect it to an
oxygen, chimera says that it is already bonded and hence some bonds to
create a new one. Is there any way to make such linkages as in the pdb ?

Thanks,
Bala
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