scholarly journals New Insights into the Genetic Organization of the FK228 Biosynthetic Gene Cluster inChromobacterium violaceumNo. 968

2010 ◽  
Vol 77 (4) ◽  
pp. 1508-1511 ◽  
Author(s):  
Vishwakanth Y. Potharla ◽  
Shane R. Wesener ◽  
Yi-Qiang Cheng
Keyword(s):  
Natural Product ◽  
Gene Cluster ◽  
Gene Deletion ◽  
Regulatory Gene ◽  
Biosynthetic Gene Cluster ◽  
Transcriptional Analysis ◽  
Biosynthetic Gene ◽  
Genetic Organization

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.

Biosynthesis of the uridine-derived nucleoside antibiotic A-94964: identification and characterization of the biosynthetic gene cluster provide insight into the biosynthetic pathway

2019 ◽  
Vol 17 (3) ◽  
pp. 461-466 ◽  
Author(s):  
Taro Shiraishi ◽  
Makoto Nishiyama ◽  
Tomohisa Kuzuyama
Keyword(s):  
Gene Cluster ◽  
In Silico ◽  
Biosynthetic Pathway ◽  
Gene Deletion ◽  
Biosynthetic Gene Cluster ◽  
Biosynthetic Gene ◽  
Identification And Characterization ◽  
Insight Into

The biosynthetic pathway of the uridine-derived nucleoside antibiotic A-94964 was proposed via in silico analysis coupled with gene deletion experiments.

scholarly journals mSphere of Influence: Synthetic Biology of Natural Product Biosynthesis

mSphere ◽  
2020 ◽  
Vol 5 (1) ◽  
Author(s):  
Mark C. Walker
Keyword(s):  
Natural Products ◽  
Synthetic Biology ◽  
Natural Product ◽  
Gene Cluster ◽  
Biosynthetic Gene Cluster ◽  
Biosynthetic Gene ◽  
Natural Product Biosynthesis ◽  
Antibiotic Compounds ◽  
Approaches To Study

ABSTRACT Mark Walker studies the biosynthesis and engineering of bacterial natural products with the long-term goal of identifying new antibiotic compounds. In this mSphere of Influence, he reflects on how “Direct cloning and refactoring of a silent lipopeptide biosynthetic gene cluster yields the antibiotic taromycin A” by K. Yamanaka, K. A. Reynolds, R. D. Kersten, K. S. Ryan, et al. (Proc Natl Acad Sci USA 111:1957–1962, 2014, https://doi.org/10.1073/pnas.1319584111) impacted his thinking on using synthetic biology approaches to study natural product biosynthesis.

scholarly journals Hierarchical control of virginiamycin production in Streptomyces virginiae by three pathway-specific regulators: VmsS, VmsT and VmsR

Microbiology ◽  
2009 ◽  
Vol 155 (4) ◽  
pp. 1250-1259 ◽  
Author(s):  
Nattika Pulsawat ◽  
Shigeru Kitani ◽  
Eriko Fukushima ◽  
Takuya Nihira
Keyword(s):  
Gene Cluster ◽  
Response Regulator ◽  
Expression Profiles ◽  
Regulatory Protein ◽  
Regulatory Region ◽  
Biosynthetic Gene Cluster ◽  
Transcriptional Analysis ◽  
Biosynthetic Gene ◽  
Biosynthetic Genes ◽  
Streptomyces Virginiae

Two regulatory genes encoding a Streptomyces antibiotic regulatory protein (vmsS) and a response regulator (vmsT) of a bacterial two-component signal transduction system are present in the left-hand region of the biosynthetic gene cluster of the antibiotic virginiamycin, which is composed of virginiamycin M (VM) and virginiamycin S (VS), in Streptomyces virginiae. Disruption of vmsS abolished both VM and VS biosynthesis, with drastic alteration of the transcriptional profile for virginiamycin biosynthetic genes, whereas disruption of vmsT resulted in only a loss of VM biosynthesis, suggesting that vmsS is a pathway-specific regulator for both VM and VS biosynthesis, and that vmsT is a pathway-specific regulator for VM biosynthesis alone. Gene expression profiles determined by semiquantitative RT-PCR on the virginiamycin biosynthetic gene cluster demonstrated that vmsS controls the biosynthetic genes for VM and VS, and vmsT controls unidentified gene(s) of VM biosynthesis located outside the biosynthetic gene cluster. In addition, transcriptional analysis of a deletion mutant of vmsR located in the clustered regulatory region in the virginiamycin cluster (and which also acts as a SARP-family activator for both VM and VS biosynthesis) indicated that the expression of vmsS and vmsT is under the control of vmsR, and vmsR also contributes to the expression of VM and VS biosynthetic genes, independent of vmsS and vmsT. Therefore, coordinated virginiamycin biosynthesis is controlled by three pathway-specific regulators which hierarchically control the expression of the biosynthetic gene cluster.

Cloning and Heterologous Expression of a Natural Product Biosynthetic Gene Cluster from eDNA

2001 ◽  
Vol 3 (13) ◽  
pp. 1981-1984 ◽  
Author(s):  
Sean F. Brady ◽  
Carol J. Chao ◽  
Jo Handelsman ◽  
Jon Clardy
Keyword(s):  
Heterologous Expression ◽  
Natural Product ◽  
Gene Cluster ◽  
Biosynthetic Gene Cluster ◽  
Biosynthetic Gene

scholarly journals Analysis of the Tunicamycin Biosynthetic Gene Cluster ofStreptomyces chartreusisReveals New Insights into Tunicamycin Production and Immunity

2018 ◽  
Vol 62 (8) ◽  
Author(s):  
David Widdick ◽  
Sylvain F. Royer ◽  
Hua Wang ◽  
Natalia M. Vior ◽  
Juan Pablo Gomez-Escribano ◽  
...  
Keyword(s):  
Gene Cluster ◽  
Streptomyces Coelicolor ◽  
Biosynthetic Gene Cluster ◽  
Transcriptional Analysis ◽  
Efficient Production ◽  
Primary Metabolism ◽  
Biosynthetic Gene ◽  
Content Type ◽  
High Degree ◽  
Single Operon

ABSTRACTThe tunicamycin biosynthetic gene cluster ofStreptomyces chartreusisconsists of 14 genes (tunAtotunN) with a high degree of apparent translational coupling. Transcriptional analysis revealed that all of these genes are likely to be transcribed as a single operon from two promoters,tunp1 andtunp2. In-frame deletion analysis revealed that just six of these genes (tunABCDEH) are essential for tunicamycin production in the heterologous hostStreptomyces coelicolor, while five (tunFGKLN) with likely counterparts in primary metabolism are not necessary, but presumably ensure efficient production of the antibiotic at the onset of tunicamycin biosynthesis. Three genes are implicated in immunity, namely,tunIandtunJ, which encode a two-component ABC transporter presumably required for export of the antibiotic, andtunM, which encodes a putativeS-adenosylmethionine (SAM)-dependent methyltransferase. Expression oftunIJortunMinS. coelicolorconferred resistance to exogenous tunicamycin. The results presented here provide new insights into tunicamycin biosynthesis and immunity.

Activation of a silent phenazine biosynthetic gene cluster reveals a novel natural product and a new resistance mechanism against phenazines

MedChemComm ◽  
2012 ◽  
Vol 3 (8) ◽  
pp. 1009 ◽  
Author(s):  
Orwah Saleh ◽  
Tobias Bonitz ◽  
Katrin Flinspach ◽  
Andreas Kulik ◽  
Nadja Burkard ◽  
...  
Keyword(s):  
Natural Product ◽  
Gene Cluster ◽  
Resistance Mechanism ◽  
Biosynthetic Gene Cluster ◽  
Biosynthetic Gene
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