TRMT1L-catalyzed m22G27 on tyrosine tRNA is required for efficient mRNA translation and cell survival under oxidative stress
Hwang et al. identify TRMT1L as the elusive methyltransferase responsible for catalyzing the m22G modification at position 27 on tyrosine tRNA. TRMT1L is also crucial for maintaining acp3U and D modifications on select tRNAs, and its depletion reduces tyrosine tRNA stability, global translation efficiency, and cell survival under oxidative stress.