Ontology Term : Pfam:PF00814 tRNA N6-adenosine threonylcarbamoyltransferase EMBL-EBI

Description  This domain can be found in Kae1/Qri7/YgjD, products of COG0533 that belong to a small group of 60 proteins that are present in all three domains of life. COG0533 proteins are suggest to play a role in a post translational modification of certain tRNAs. For example, YgjD along with YeaZ, YjeE, and YrdC have been deemed necessary and sufficient for the tRNA modification [1]. This modification involves the formation of N6-threonyl carbamoyl adenosine (t6A) at position 37 in the anti-codon stem loop which is critical for translational speed and accuracy [2]. Structural analysis indicate that YeaZ lacks resemblance to any known protease active site. Together with the absence of a putative zinc-binding motif. Thus the likelyhood of it being a protease, as previously thought, has been negated [1]. EC:2.3.1.234
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