Noun
pretubulysin (countable and uncountable, plural pretubulysins)
A tubulysin precursor (2S,4R)-2-methyl-4-[[2-[(3R)-4-methyl-3-[methyl-[(2S,3S)-3-methyl-2-[[(2R)-1-methylpiperidine-2-carbonyl]amino]pentanoyl]amino]pentyl]-1,3-thiazole-4-carbonyl]amino]-5-phenylpentanoic acid