DinGEc is a structure-specific enzyme, related to human xeroderma pigmentosum group D (XPD), FANCJ, also known as BACH1, as well as to Saccharomyces cerevisiae Rad3 and Chl1, and Schizosaccharomyces pombe Rad15 [10]. Here, CHL1 is linked to xeroderma pigmentosum group D.