▁Kingdom ▁Category : Mag az ines ▁dis est ab lished ▁in ▁ 1 9 6 8 ▁Category : Mag az ines ▁established ▁in ▁ 1 9 5 2 <0x0A> </s> ▁Mal ony l - Co A ▁is ▁a ▁co enz yme ▁A ▁derivative ▁of ▁mal onic ▁acid . ▁ ▁Function s ▁It ▁plays ▁a ▁key ▁role ▁in ▁chain ▁el ong ation ▁in ▁fat ty ▁acid ▁b ios yn thesis ▁and ▁poly ket ide ▁b ios yn thesis . ▁ ▁F at ty ▁acid ▁b ios yn thesis ▁In ▁the ▁former , ▁it ▁provides ▁ 2 - car bon ▁units ▁to ▁fat ty ▁ac ids ▁and ▁commits ▁them ▁to ▁fat ty ▁acid ▁chain ▁synth esis . ▁ ▁Mal ony l - Co A ▁is ▁formed ▁by ▁car box yl ating ▁ac et yl - Co A ▁using ▁the ▁en zym e ▁ac et yl - Co A ▁car box yl ase . ▁One ▁mole c ule ▁of ▁ac et yl - Co A ▁joins ▁with ▁a ▁mole c ule ▁of ▁b ic ar bon ate , ▁requiring ▁energy ▁rendered ▁from ▁ATP . ▁ ▁Mal ony l - Co A ▁is ▁util ised ▁in ▁fat ty ▁acid ▁b ios yn thesis ▁by ▁the ▁en zym e ▁mal ony l ▁co enz yme ▁A : ac yl ▁car rier ▁protein ▁trans ac yl ase ▁( MC AT ). ▁MC AT ▁serves ▁to ▁transfer ▁mal on ate ▁from ▁mal ony l - Co A ▁to ▁the ▁terminal ▁th i ol ▁of ▁h olo - ac yl ▁car