Tanaka T, Tsukuda E, Ochiai K, Kondo H, Teshiba S, Matsuda Y
Tokyo Research Laboratories, Kyowa Hakko Kogyo Co., Ltd., Japan.
J Antibiot (Tokyo). 1996 Nov;49(11):1073-8. doi: 10.7164/antibiotics.49.1073.
EI-1511-3, -5 and EI-1625-2, novel interleukin-1 beta converting enzyme (ICE) inhibitors, were isolated from the culture broths of Streptomyces sp. E-1511 and E-1625. EI-1511-3, -5 and EI-1625-2 selectively inhibited the recombinant human ICE activity with IC50 values of 0.09, 0.38 and 0.2 microM, respectively. Taxonomy, fermentation of the producing strain and isolation of EI-1511-3, -5 and EI-1625-2 are described.