Protein
Regulatory protein Cgi121
Organism
Methanocaldococcus jannaschii (strain ATCC 43067 / DSM 2661 / JAL-1 / JCM 10045 / NBRC 100440)
Function
Component of the KEOPS complex that is probably involved in the transfer of the threonylcarbamoyl moiety of threonylcarbamoyl-AMP (TC-AMP) to the N6 group of A37, a step in the formation of a threonylcarbamoyl group on adenosine at position 37 (t(6)A37) in tRNAs that read codons beginning with adenine. Cgi121 stimulates Bud32 kinase activity via an activation of Bud32 autophosphorylation.
Similarity
Belongs to the CGI121/TPRKB family.
Sequence
MIIRGIRGARINNEIFNLGLKFQILNADVVATKKHVLHAINQAKTKKPIAKSFWMEILVRASGQRQIHEAIKIIGAKDGNVCLICEDEETFRKIYELIGGEIDDSVLEINEDKERLIREIFKIRGFGNVVERVLEKIALIELKKE