Follow the case study in the Bioinformatics Guide for calling the function of the genes involved in 7-Deazaguanine modifications. These are genes 1-5 in Rosebush and gene 20 in Orion.

https://seaphagesbioinformatics.helpdocsonline.com/article-1596481355

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6884629/