Macrolactams are made by feeding aromatic amino acids as replacement starter units to a mutant strain of the geldanamycin-producing microorganism
Streptomyces hygroscopicus
var.
geldanus
NRRL 3602, wherein the gene cluster encoding enzymes for the biosynthesis of the natural starter unit 3-amino-5-hydroxybenzoic acid has been deleted.
[EN] MACROLACTAMS BY ENGINEERED BIOSYNTHESIS<br/>[FR] MACROLACTAMES OBTENUS PAR BIOSYNTHÈSE MODIFIÉE
申请人:KOSAN BIOSCIENCES INC
公开号:WO2008094438A1
公开(公告)日:2008-08-07
[EN] Macrolactams are made by feeding aromatic amino acids as replacement starter units to a mutant strain of the geldanamycin-producing microorganism Streptomyces hygroscopicus var. geldanus NRRL 3602, wherein the gene cluster encoding enzymes for the biosynthesis of the natural starter unit 3-amino-5-hydroxybenzoic acid has been deleted. [FR] Selon la présente invention, les macrolactames sont préparés en alimentant une souche mutante du microorganisme produisant de la geldanamycine Streptomyces hygroscopicus var. geldanus NRRL 3602 en acides aminés aromatiques en tant qu'unités de départ de substitution, souche dans laquelle le groupe de gènes qui code pour les enzymes de biosynthèse de l'unité de départ naturelle, l'acide 3-amino-5-hydroxybenzoïque, a été délété.
Heat Shock Proteins Revisited: Using a Mutasynthetically Generated Reblastatin Library to Compare the Inhibition of Human and<i>Leishmania</i>Hsp90s
Heatshockprotein (Hsp) inhibition in parasites: New reblastatin derivatives, prepared by mutasynthesis complemented with a library of other Hsp inhibitors, were evaluated in cell‐based and in in vitro ATP displacement assays, the latter utilising purified human HsHsp90 and LbHsp90 from L. braziliensis. The study paves the way for finding selective inhibitors of parasitic heatshockproteins.