This family is the N terminal half of the Prosite family. The C-terminal half has been shown to be related to MiaB proteins [1,2]. This domain is a nearly always found in conjunction with Pfam:PF04055 and Pfam:PF01938 although its function is uncertain.

1: TRAM, a predicted RNA-binding domain, common to tRNA uracil methylation and adenine thiolation enzymes. Anantharaman V, Koonin EV, Aravind L; FEMS Microbiol Lett 2001;197:215-221. PMID:11313137

2: Enzymatic modification of tRNAs: MiaB is an iron-sulfur protein. Pierrel F, Bjork GR, Fontecave M, Atta M; J Biol Chem 2002;277:13367-13370. PMID:11882645