THG1L (THG1) adds a guanosine triphosphate residue to the 5' end of tRNA(His), a 3'-5' addition that contrasts with the usual 5'-3' directionality of nucleotide polymerases (Hyde et al. 2010).
Hyde, SJ, Eberley, WA, Eckenroth, BE, Heintz, NH, DoubliƩ, S, Jackman, JE, Smith, BA
nucleotidyltransferase activity of THG1L [cytosol]
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