hexadec-2-enoyl-pantetheine-4-phosphorylserine(1-) residue
hexadec-2-enoyl-pantetheine-4-phosphorylserine(1-) residue
An anionic amino-acid residue formed by loss of a proton from the phospho group  of hexadec-2-enoyl-pantetheine-4-phosphorylserine residue.