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. The complex is probably involved in the transfer of the threonylcarbamoyl moiety of threonylcarbamoyl-AMP (TC-AMP) to the N6 group of A37. GON7 likely plays a supporting role to the catalytic subunit KAE1 in the complex. The EKC/KEOPS complex also promotes both telomere uncapping and telomere elongation. The complex is required for efficient recruitment of transcriptional coactivators. Component of the EKC/KEOPS complex composed of at least BUD32, CGI121, GON7, KAE1 and PCC1; the whole complex dimerizes. Accumulates in response to hyperosmostic conditions. Present with 2180 molecules/cell in log phase SD medium. Belongs to the GON7 family.