Abstract:
:Control of gene and protein expression of both endogenous and heterologous genes is a key component of metabolic engineering. While a large amount of work has been published characterizing promoters for this purpose, less effort has been exerted to elucidate the role of terminators in yeast. In this study, we characterize over 30 terminators for use in metabolic engineering applications in Saccharomyces cerevisiae and determine mRNA half-life changes to be the major cause of the varied protein and transcript expression level. We demonstrate that the difference in transcript level can be over 6.5-fold even for high strength promoters. The influence of terminator selection is magnified when coupled with a low-expression promoter, with a maximum difference in protein expression of 11-fold between an expression-enhancing terminator and the parent plasmid terminator and over 35-fold difference when compared with a no-terminator baseline. This is the first time that terminators have been investigated in the context of multiple promoters spanning orders of magnitude in activity. Finally, we demonstrate the utility of terminator selection for metabolic engineering by using a mutant xylose isomerase gene as a proof-of-concept. Through pairing an expression-enhancing terminator with a low-expression promoter, we were able to achieve the same phenotypic result as with a promoter considerably higher in strength. Moreover, we can further boost the phenotype of the high-strength promoter by pairing it with an expression-enhancing terminator. This work highlights how terminator elements can be used to control metabolic pathways in the same way that promoters are traditionally used in yeast. Together, this work demonstrates that terminators will be an important part of heterologous gene expression and metabolic engineering for yeast in the future.
journal_name
Metab Engjournal_title
Metabolic engineeringauthors
Curran KA,Karim AS,Gupta A,Alper HSdoi
10.1016/j.ymben.2013.07.001subject
Has Abstractpub_date
2013-09-01 00:00:00pages
88-97eissn
1096-7176issn
1096-7184pii
S1096-7176(13)00065-7journal_volume
19pub_type
杂志文章abstract::The rapK gene required for biosynthesis of the DHCHC starter acid that initiates rapamycin biosynthesis was deleted from strain BIOT-3410, a derivative of Streptomyces rapamycinicus which had been subjected to classical strain and process development and capable of robust rapamycin production at titres up to 250mg/L. ...
journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2012.11.001
更新日期:2013-01-01 00:00:00
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journal_title:Metabolic engineering
pub_type: 杂志文章,评审
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journal_title:Metabolic engineering
pub_type: 杂志文章,评审
doi:10.1016/j.ymben.2012.04.006
更新日期:2012-07-01 00:00:00
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journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2018.11.009
更新日期:2019-03-01 00:00:00
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journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2017.07.003
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journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2019.07.002
更新日期:2019-09-01 00:00:00
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journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2011.05.005
更新日期:2011-09-01 00:00:00
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journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2012.06.001
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journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2005.02.004
更新日期:2005-05-01 00:00:00
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journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2016.12.001
更新日期:2017-01-01 00:00:00
abstract::Producing some small hydrophobic molecules in microbes is challenging. Often these molecules cannot cross membranes, and thus their production may be limited by lack of storage space in the producing organism. This study reports a new technology for in vivo storage of valuable hydrophobic products in/on biopolymer bod...
journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2020.04.006
更新日期:2020-09-01 00:00:00
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journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2015.08.006
更新日期:2015-11-01 00:00:00
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journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2010.03.002
更新日期:2010-07-01 00:00:00
abstract::Metabolic engineering is used to improve titers, yields and generation rates for biochemical products in host microbes such as Escherichia coli. A wide range of biochemicals are derived from the central carbon metabolite acetyl-CoA, and the largest native drain of acetyl-CoA in most microbes including E. coli is entry...
journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2020.06.006
更新日期:2020-09-01 00:00:00
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journal_title:Metabolic engineering
pub_type: 杂志文章,评审
doi:10.1016/j.ymben.2020.10.005
更新日期:2021-01-01 00:00:00
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journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2019.10.006
更新日期:2020-01-01 00:00:00
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journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2018.05.021
更新日期:2018-07-01 00:00:00
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journal_title:Metabolic engineering
pub_type: 杂志文章,评审
doi:10.1016/j.ymben.2018.05.015
更新日期:2018-11-01 00:00:00
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journal_title:Metabolic engineering
pub_type: 杂志文章,评审
doi:10.1016/j.ymben.2006.01.005
更新日期:2006-07-01 00:00:00
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journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2013.02.005
更新日期:2013-05-01 00:00:00
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journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2007.05.001
更新日期:2007-07-01 00:00:00
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journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2013.03.001
更新日期:2013-05-01 00:00:00
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journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2016.11.005
更新日期:2017-09-01 00:00:00
abstract::Anthocyanins are widely distributed, glycosylated, water-soluble plant pigments, which give many fruits and flowers their red, purple or blue colouration. Their beneficial effects in a dietary context have encouraged increasing use of anthocyanins as natural colourants in the food and cosmetic industries. However, the...
journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2018.06.004
更新日期:2018-07-01 00:00:00
abstract::Biotin is an archetypal vitamin used as cofactor for carboxylation reactions found in all forms of life. However, biotin biosynthesis is an elaborate multi-enzymatic process and metabolically costly. Moreover, many industrially relevant organisms are incapable of biotin synthesis resulting in the requirement to supple...
journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2016.12.013
更新日期:2017-03-01 00:00:00
abstract::The study was aimed at evaluating the extent of flux control exercised by the amino acid excretion step on the glutamate production flux in C. glutamicum 2262 strain that is induced for glutamate excretion by an upward temperature shift. Cells initially induced to excrete glutamate were cultivated at different control...
journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1006/mben.1999.0129
更新日期:1999-07-01 00:00:00
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journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2013.09.003
更新日期:2013-11-01 00:00:00
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journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2018.05.002
更新日期:2018-07-01 00:00:00
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journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2012.11.011
更新日期:2013-03-01 00:00:00