▁States ▁Category : American ▁companies ▁established ▁in ▁ 2 0 1 4 ▁Category : Comp an ies ▁based ▁in ▁Seattle ▁Category : 2 0 1 4 ▁establish ments ▁in ▁Washington ▁( state ) ▁Category : C ann ab is ▁websites ▁Category : Internet ▁properties ▁established ▁in ▁ 2 0 1 4 <0x0A> </s> ▁In ▁en zym ology , ▁a ▁t R NA ▁( aden ine - N 6 - )- m eth yl trans fer ase ▁() ▁is ▁an ▁en zym e ▁that ▁catal y zes ▁the ▁chemical ▁reaction ▁ ▁S - aden os yl - L - m eth ion ine ▁+ ▁t R NA ▁ ▁S - aden os yl - L - hom oc yst e ine ▁+ ▁t R NA ▁containing ▁N 6 - m eth yl aden ine ▁ ▁Thus , ▁the ▁two ▁substr ates ▁of ▁this ▁en zym e ▁are ▁S - aden os yl ▁m eth ion ine ▁and ▁t R NA , ▁whereas ▁its ▁two ▁products ▁are ▁S - aden os yl hom oc yst e ine ▁and ▁t R NA ▁containing ▁N 6 - m eth yl aden ine . ▁ ▁This ▁en zym e ▁belongs ▁to ▁the ▁family ▁of ▁transfer ases , ▁specifically ▁those ▁transfer ring ▁one - car bon ▁group ▁m eth yl trans fer ases . ▁ ▁The ▁system atic ▁name ▁of ▁this ▁en zym e ▁class ▁is ▁S - aden os yl - L - m eth ion ine : t R NA ▁( aden ine - N 6 -