Can anyone suggest a bacterial species with a medium GC content that has never been found in the human gut?

11 November 2012 1 2K Report

I am looking for some DNA to use as an internal standard when we do sequencing. I need to find a species that has never been found in the human gut, but has a medium GC content. If you know where I can order the DNA from, that is even better. I have been looking for something like Nitrosomonas or Rhodopsuedemonas, but I am having trouble finding a good source. Any suggestions?

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