RES-701-2, RES-701-3 AND RES-701-4, NOVEL AND SELECTIVE ENDOTHELIN TYPE-B RECEPTOR ANTAGONISTS PRODUCED BY STREPTOMYCES SP .1. TAXONOMY OF PRODUCING STRAINS, FERMENTATION, ISOLATION, AND BIOCHEMICAL-PROPERTIES
T. Ogawa et al., RES-701-2, RES-701-3 AND RES-701-4, NOVEL AND SELECTIVE ENDOTHELIN TYPE-B RECEPTOR ANTAGONISTS PRODUCED BY STREPTOMYCES SP .1. TAXONOMY OF PRODUCING STRAINS, FERMENTATION, ISOLATION, AND BIOCHEMICAL-PROPERTIES, Journal of antibiotics, 48(11), 1995, pp. 1213-1220
RES-701-2, -3 and -4, novel cyclic peptide endothelin antagonists, wer
e isolated from the culture broths of Streptomyces sp. RE-701 and RE-8
96. RES-701s selectively inhibited the ET-1 binding to endothelin type
B receptor (ET(B) receptor) with IC50 values ranging from 5 to 20nM.
Taxonomy of the producing strains, fermentation, isolation and biochem
ical properties of RES-701s are described.