A protein complex involved in t6A tRNA modification; originally proposed to be involved in transcription as well as promoting telomere uncapping and telomere elongation. For example, in Saccharomyces cerevisiae the complex contains Bud32p, Kae1p, Gon7p, Cgi121p, and Pcc1p. [ http://www.ncbi.nlm.nih.gov/pubmed/16874308 http://www.ncbi.nlm.nih.gov/pubmed/23945934 http://www.ncbi.nlm.nih.gov/pubmed/21183954 http://www.ncbi.nlm.nih.gov/pubmed/16564010 ]