The function of TP53RK (TP53 regulating kinase, ENSG00000172315) is as follows. Component of the EKC/KEOPS complex that is required for the formation of a threonylcarbamoyl group on adenosine at position 37 (t(6)A37) in tRNAs that read codons beginning with adenine (PubMed:22912744, PubMed:27903914). The complex is probably involved in the transfer of the threonylcarbamoyl moiety of threonylcarbamoyl-AMP (TC-AMP) to the N6 group of A37 (PubMed:22912744, PubMed:27903914). TP53RK has ATPase activity in the context of the EKC/KEOPS complex and likely plays a supporting role to the catalytic subunit OSGEP (By similarity). Atypical protein kinase that phosphorylates 'Ser-15' of p53/TP53 protein and may therefore participate in its activation (PubMed:11546806). {ECO:0000250|UniProtKB:P53323, ECO:0000250|UniProtKB:Q9UYB9, ECO:0000269|PubMed:11546806, ECO:0000305|PubMed:22912744, ECO:0000305|PubMed:27903914}.