Genetic organization of the putative salbostatin biosynthetic gene cluster including the 2-epi-5-epi-valiolone synthase gene in Streptomyces albus ATCC 21838

2008 ◽  
Vol 80 (4) ◽  
pp. 637-645 ◽  
Author(s):  
Woo Sik Choi ◽  
Xiumei Wu ◽  
Yong-Hoon Choeng ◽  
Taifo Mahmud ◽  
Byeong Chul Jeong ◽  
...  
2010 ◽  
Vol 77 (4) ◽  
pp. 1508-1511 ◽  
Author(s):  
Vishwakanth Y. Potharla ◽  
Shane R. Wesener ◽  
Yi-Qiang Cheng

ABSTRACTThe biosynthetic gene cluster of FK228, an FDA-approved anticancer natural product, was identified and sequenced previously. The genetic organization of this gene cluster has now been delineated through systematic gene deletion and transcriptional analysis. As a result, the gene cluster is redefined to contain 12 genes:depAthroughdepJ,depM, and a newly identified pathway regulatory gene,depR.


2006 ◽  
Vol 188 (11) ◽  
pp. 4142-4147 ◽  
Author(s):  
Chunhua Zhao ◽  
Jianhua Ju ◽  
Steven D. Christenson ◽  
Wyatt C. Smith ◽  
Danfeng Song ◽  
...  

ABSTRACT Oxazolomycin (OZM), a hybrid peptide-polyketide antibiotic, exhibits potent antitumor and antiviral activities. Using degenerate primers to clone genes encoding methoxymalonyl-acyl carrier protein (ACP) biosynthesis as probes, a 135-kb DNA region from Streptomyces albus JA3453 was cloned and found to cover the entire OZM biosynthetic gene cluster. The involvement of the cloned genes in OZM biosynthesis was confirmed by deletion of a 12-kb DNA fragment containing six genes for methoxymalonyl-ACP biosynthesis from the specific region of the chromosome, as well as deletion of the ozmC gene within this region, to generate OZM-nonproducing mutants.


2019 ◽  
Vol 72 (5) ◽  
pp. 311-315 ◽  
Author(s):  
Chunshuai Huang ◽  
Chunfang Yang ◽  
Wenjun Zhang ◽  
Yiguang Zhu ◽  
Liang Ma ◽  
...  

Biomolecules ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 1074
Author(s):  
Hui Shuai ◽  
Maksym Myronovskyi ◽  
Suvd Nadmid ◽  
Andriy Luzhetskyy

Pyrrolopyrimidines are an important class of natural products with a broad spectrum of biological activities, including antibacterial, antifungal, antiviral, anticancer or anti-inflammatory. Here, we present the identification of a biosynthetic gene cluster from the rare actinomycete strain Kutzneria albida DSM 43870, which leads to the production of huimycin, a new member of the pyrrolopyrimidine family of compounds. The huimycin gene cluster was successfully expressed in the heterologous host strain Streptomyces albus Del14. The compound was purified, and its structure was elucidated by means of nuclear magnetic resonance spectroscopy. The minimal huimycin gene cluster was identified through sequence analysis and a series of gene deletion experiments. A model for huimycin biosynthesis is also proposed in this paper.


2021 ◽  
Vol 9 (8) ◽  
pp. 1609
Author(s):  
Liliya Horbal ◽  
Marc Stierhof ◽  
Anja Palusczak ◽  
Nikolas Eckert ◽  
Josef Zapp ◽  
...  

Targeted genome mining is an efficient method of biosynthetic gene cluster prioritization within constantly growing genome databases. Using two capreomycidine biosynthesis genes, alpha-ketoglutarate-dependent arginine beta-hydroxylase and pyridoxal-phosphate-dependent aminotransferase, we identified two types of clusters: one type containing both genes involved in the biosynthesis of the abovementioned moiety, and other clusters including only arginine hydroxylase. Detailed analysis of one of the clusters, the flk cluster from Streptomyces albus, led to the identification of a cyclic peptide that contains a rare D-capreomycidine moiety for the first time. The absence of the pyridoxal-phosphate-dependent aminotransferase gene in the flk cluster is compensated by the XNR_1347 gene in the S. albus genome, whose product is responsible for biosynthesis of the abovementioned nonproteinogenic amino acid. Herein, we report the structure of cyclofaulknamycin and the characteristics of its biosynthetic gene cluster, biosynthesis and bioactivity profile.


2007 ◽  
Vol 75 (5) ◽  
pp. 1119-1126 ◽  
Author(s):  
Seung-Young Kim ◽  
Jin-Soo Park ◽  
Choong-Sik Chae ◽  
Chang-Gu Hyun ◽  
Byoung Wook Choi ◽  
...  

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