... > chemical entity > group > anionic group > organic anionic group > anionic amino-acid residue > O-(S-acylpantetheine-4'-phosphoryl)serine(1-) residue > O-[S-(2E)-2-enoylpantetheine-4'-phosphoryl]-L-serine(1-) residue > O-[S-(2E,12E,15R)-15-hydroxyhexadeca-2,12-dienoylpantetheine-4'-phosphoryl]serine(1-) residue