You are correct, I could always use some script(I actually wrote my own using Biopython) to do this work before running gkno, but that would defeat the purpose of doing everything inside a very convenient gkno pipeline. And to the second part of my question, if gkno doesn't have such a tool currently, I would like to hear comments on a mature tool that could get integrated into gkno to do the conversion. There is some work involve in integrating a tool into gkno, I would like to do such work for a mature tool if there is one.
Thanks, Carlos