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Patch-forming domain C2 of tRNA-guanine transglycosylase Domain C2 of tRNA-guanine transglycosylase is formed by a four-stranded anti-parallel beta-sheet lined with two alpha helices. It has conserved basic residues on the surface of the beta-sheets as does the C-terminal domain PUA, pfam01472. The catalytic domain, TGT has conserved basic residues on the outer surface of the N-terminal three-stranded beta sheet, which closes the barrel, and it is postulated that these basic residues from the three domains form a continuous, positively charged patch to which the tRNA binds. |
Jiyao W et al.(2023). "The conserved domain database in 2023.",