摘要:
This invention relates to novel biologically active polyene oxazoles of Formula (I), their pharmaceutically acceptable salts and derivatives, and to methods of obtaining them. One method for obtaining the compounds is by cultivation of Streptomyces sparsogenes NRRL 2940 or a mutant or variant thereof. The pharmaceutical composition comprising a compound of the invention is useful as a cytotoxic agent and for inhibiting the growth of cancer cells.
摘要:
This invention relates to compositions and methods for inhibiting growth and proliferation of a neoplastic cell, and methods of treating neoplasms in a mammal using the compound of Formula I or a pharmaceutically acceptable salt, prodrug thereof. More particularly, the invention relates to the use of the compound of Formula I as a continuous intravenous infusion administrable preparation for the treatment of neoplastic disorders.
摘要:
The invention relates to isolated polypeptides involved in lipopeptide biosynthesis and polynucleotides encoding such polypeptides. In particular, the isolated polypeptide may be an acyl-specific C-domain, an adenylating enzyme, or an acyl carrier. The invention also relates to methods for detecting a polypeptide involved in lipopeptide biosynthesis or a polynucleotide encoding such a polypeptide, as well as relevant useful computer readable medium and computer systems.
摘要:
Genes and proteins involved in the biosynthesis of lipopeptides by microorganisms, in particular the nucleic acids forming the biosynthetic locus for the A54145 lipopeptide from Streptomyces fradiae and the A54145-like lipopeptide from Streptomyces refuineus. These nucleic acids can be used to make expression constructs and transformed host cells for the production of lipopeptides. The genes and proteins allow direct manipulation of lipopeptides and related chemical structures via chemical engineering of the proteins involved in the biosynthesis of A54145.
摘要:
Genes and proteins involved in the biosynthesis of macrolides by microorganisms, in particular the nucleic acids forming the biosynthetic locus for the 16-member macrolide rosaramicin from Micromonospora carbonacea. These nucleic acids can be used to make expression constructs and transformed host cells for the production of rosaramicin. The genes and proteins allow direct manipulation of macrolides and related chemical structures via chemical engineering of the proteins involved in the biosynthesis of rosaramicin.
摘要:
Genes and proteins involved in the biosynthesis of polyketides by microorganisms, including the genes and proteins forming the biosynthetic loci for the polyketide dorrigocin from Streptomyces platensis subsp. rosaceus and the polyketide lactimidomycin from Streptomyces amphibiosporus . The genes and proteins allow direct manipulation of dorrigocin, lactimidomycin and related chemical structures via chemical engineering of the enzymes involved in the biosynthesis of dorrigocin and lactimidomycin.
摘要:
Five protein families cooperate to form the warhead structure that characterizes enediyne compounds, both chromoprotein enediynes and non-chromoprotein enediynes. The protein families include a polyketide synthase and thioesterase protein which form a polyketide synthase catalytic complex involved in warhead formation in enediynes. Genes encoding a member of each of the five protein families are found in all enediyne biosynthetic loci. The genes and proteins may be used in genetic engineering applications to design new enediyne compounds and in methods to identify new enediyne biosynthetic loci.
摘要:
This invention relates to novel biologically active polyene oxazoles of Formula (I), their pharmaceutically acceptable salts and derivatives, and to methods of obtaining them. One method for obtaining the compounds is by cultivation of Streptomyces sparsogenes NRRL 2940 or a mutant or variant thereof. The pharmaceutical composition comprising a compound of the invention is useful as a cytotoxic agent and for inhibiting the growth of cancer cells.