The crystal structure of protein-(glutamine-N5) methyltransferase (release factor-specific) from Alicyclobacillus acidocaldarius subsp. acidocaldarius DSM 446
[C8WUG7_ALIAD] Methylates the class 1 translation termination release factors RF1/PrfA and RF2/PrfB on the glutamine residue of the universally conserved GGQ motif (By similarity).[HAMAP-Rule:MF_02126]