Antibiotic MA 144M2 is an anthracycline glycoside that inhibits the growth of gram-positive bacteria, e.g. Staphyococcus aureaus, Bacillus subtilis and Sarcina lutea, and inhibits the growth of animal tumors such as leukemia L 1210, P 388 and sarcoma 180. It's produced by fermentation of MA 144-producing strains of streptomyces and by the chemical or enzymatic conversion of aclacinomycin A or cinerubin A.
Vinclozolin M2, an active metabolite of vinclozolin, is generated through successive esterase activity and decarboxylation in C. elegans, as well as decarboxylation in human liver microsomes. It functions as an antagonist to the mineralocorticoid (IC50= 1,400 nM) and androgen receptors (IC50= 0.17 nM), demonstrated in reporter assays with MCF-7 cells. This compound is exclusively sold for research and analytical purposes, tailored for controlled laboratory use, and is not available in bulk sizes.
MMT3-72-M2, an MMT3-72 metabolite, is a selective JAK1 inhibitor that inhibits JAK1, JAK2, TYK2, and JAK3 with IC50 values of 10.8 nM, 26.3 nM, 91.6 nM, and 328.7 nM, respectively [1].