▁en zym e ▁class ▁is ▁pal m ito yl - Co A ▁hyd rol ase . ▁Other ▁names ▁in ▁common ▁use ▁include ▁long - chain ▁fat ty - ac yl - Co A ▁hyd rol ase , ▁pal m ito yl ▁co enz yme ▁A ▁hyd rol ase , ▁pal m ito yl ▁th io ester ase , ▁pal m ito yl ▁co enz yme ▁A ▁hyd rol ase , ▁pal m ito yl - Co A ▁de ac yl ase , ▁pal m ity l ▁th io ester ase , ▁pal m ity l - Co A ▁de ac yl ase , ▁fat ty ▁a cy l ▁th io ester ase ▁I , ▁and ▁pal m ity l ▁th io ester ase ▁I . ▁ ▁Struct ural ▁studies ▁ ▁As ▁of ▁late ▁ 2 0 0 7 , ▁ 3 ▁structures ▁have ▁been ▁solved ▁for ▁this ▁class ▁of ▁en zym es , ▁with ▁P DB ▁acc ession ▁codes ▁, ▁, ▁and ▁. ▁ ▁Mechan ism ▁ ▁At ▁a ▁sub cell ular ▁level , ▁pal m ito yl - Co A ▁hyd rol ase ▁is ▁local ized ▁in ▁the ▁end op las mic ▁ret icul um , ▁c yt os ol , ▁mit och ond ria , ▁and ▁per ox is om es . ▁Studies ▁have ▁shown ▁that ▁in ▁r ats ▁that ▁are ▁fed ▁high ▁fat ▁di ets , ▁pal m ito yl - Co A ▁hyd rol ase ▁activity ▁in ▁the ▁li ver ▁increased . ▁While ▁the ▁details ▁of ▁the ▁mechanism ▁are