81
General discussions (Q&As) / Re: Rebuilding Z-DNA
« Last post by xiangjun on March 14, 2025, 08:12:34 am »Thanks for your follow-up questions and the details you provided. It is always helpful to to be specific when discussing research topics.
Yes, "rebuild -atomic" would have issues with backbone connectivity, since in Z-DNA, nucleotide G is in syn conformation instead of anti (for C). The building block must be adjusted accordingly. I'll look into this further to see what we can get.
Another approach is to take the whole Z-DNA structure as a unit, and perform some transformations to extend it. See the PyMOL thread a few years ago on "create a 26 bp RNA from a 13 bp system" (https://www.mail-archive.com/pymol-users@lists.sourceforge.net/msg16190.html). The idea is applicable to Z-DNA as well. Note that the features are now available in the free DSSR Academic license (previously in DSSR Pro Academic only). Check if that method makes sense to you.
Best regards,
Xiang-Jun
Yes, "rebuild -atomic" would have issues with backbone connectivity, since in Z-DNA, nucleotide G is in syn conformation instead of anti (for C). The building block must be adjusted accordingly. I'll look into this further to see what we can get.
Another approach is to take the whole Z-DNA structure as a unit, and perform some transformations to extend it. See the PyMOL thread a few years ago on "create a 26 bp RNA from a 13 bp system" (https://www.mail-archive.com/pymol-users@lists.sourceforge.net/msg16190.html). The idea is applicable to Z-DNA as well. Note that the features are now available in the free DSSR Academic license (previously in DSSR Pro Academic only). Check if that method makes sense to you.
Best regards,
Xiang-Jun