(center map)
(1) acetyl-CoA+NADPH+ATP+HCO3- - FASN - ACAC*:Mg_super_2+_endsuper_:biotin -> long-chain fatty acid+NADP_super_+_endsuper_+CO_sub_2_endsub_+coenzyme A+ADP
(2) ACACA -> ACAC*:Mg_super_2+_endsuper_:biotin
(3) ACACB -> ACAC*:Mg_super_2+_endsuper_:biotin