ID 2.3.1.308 DE tubulin N-terminal N-acetyltransferase NAT9. AN microtubule-associated N-acetyltransferase NAT9. CA acetyl-CoA + N-terminal L-methionyl-[tubulin] = CoA + H(+) + N-terminal CA N(alpha)-acetyl-L-methionyl-[tubulin]. CC -!- The enzyme, characterized from the fruit fly (Drosophila CC melanogaster), acetylates the N-terminal of both alpha- and beta- CC tubulin. CC -!- The enzyme acts cotranslationally, and can't act on a preformed CC tubulin alpha/beta heterodimer. DR Q9V9V9, NAT9_DROME ; Q9BTE0, NAT9_HUMAN ; Q3UG98, NAT9_MOUSE ; //