NFACT-R RNA binding family found found in bacteria fused to the ThiI domain as a variant of the canonical tRNA 4-thiouridylation pathway [1].

1: A highly conserved family of domains related to the DNA-glycosylase fold helps predict multiple novel pathways for RNA modifications. Burroughs AM, Aravind L; RNA Biol. 2014;11:360-372. PMID:24646681