candidate: Other names in common use include acyl carrier protein holoprotein ( holo - ACP ) synthetase , holo - ACP synthetase , coenzyme A:fatty acid synthetase apoenzyme 4' - phosphopantetheine , transferase , holosynthase , acyl carrier protein synthetase , holo - ACP synthase , PPTase , AcpS , ACPS , acyl carrier protein synthase , P - pant transferase , and CoA:apo - [ acyl - carrier - protein pantetheinephosphotransferase .