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Modeling simultaneous glucose and xylose uptake in Saccharomyces cerevisiae from kinetics and gene expression of sugar transporters

Wiman, Magnus LU ; Andersson, Jonas and Lidén, Gunnar LU (2008) In Bioprocess and Biosystems Engineering 31(4). p.369-377
Abstract
A kinetic model for glucose and xylose co-substrate uptake in Saccharomyces cerevisiae is presented. The model couples the enzyme kinetics with the glucose-dependent genetic expression of the individual transport proteins. This novel approach implies several options for optimizing the co-substrate utilization. Interestingly, the simulations predict a maximum xylose uptake rate at a glucose concentration > 0 g/L, which suggests that the genetic expressions of the considered transport proteins are of importance when optimizing the xylose uptake. This was also evident in fed-batch simulations, where a distinct optimal glucose addition rate > 0 g/L.h was found. Strategies for improving the co-substrate utilization by genetic engineering... (More)
A kinetic model for glucose and xylose co-substrate uptake in Saccharomyces cerevisiae is presented. The model couples the enzyme kinetics with the glucose-dependent genetic expression of the individual transport proteins. This novel approach implies several options for optimizing the co-substrate utilization. Interestingly, the simulations predict a maximum xylose uptake rate at a glucose concentration > 0 g/L, which suggests that the genetic expressions of the considered transport proteins are of importance when optimizing the xylose uptake. This was also evident in fed-batch simulations, where a distinct optimal glucose addition rate > 0 g/L.h was found. Strategies for improving the co-substrate utilization by genetic engineering of the transport systems are furthermore suggested based on simulations. (Less)
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author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
cerevisiae, Saccharomyces, xylose uptake, jinetic modeling, hexose transporters
in
Bioprocess and Biosystems Engineering
volume
31
issue
4
pages
369 - 377
publisher
Springer
external identifiers
  • wos:000255998300012
  • scopus:44149113738
  • pmid:17985160
ISSN
1615-7605
DOI
10.1007/s00449-007-0169-1
language
English
LU publication?
yes
id
b058c0d3-c7ff-4c85-b559-f1853b58b13d (old id 1203529)
date added to LUP
2016-04-01 13:08:16
date last changed
2023-12-11 10:35:44
@article{b058c0d3-c7ff-4c85-b559-f1853b58b13d,
  abstract     = {{A kinetic model for glucose and xylose co-substrate uptake in Saccharomyces cerevisiae is presented. The model couples the enzyme kinetics with the glucose-dependent genetic expression of the individual transport proteins. This novel approach implies several options for optimizing the co-substrate utilization. Interestingly, the simulations predict a maximum xylose uptake rate at a glucose concentration > 0 g/L, which suggests that the genetic expressions of the considered transport proteins are of importance when optimizing the xylose uptake. This was also evident in fed-batch simulations, where a distinct optimal glucose addition rate > 0 g/L.h was found. Strategies for improving the co-substrate utilization by genetic engineering of the transport systems are furthermore suggested based on simulations.}},
  author       = {{Wiman, Magnus and Andersson, Jonas and Lidén, Gunnar}},
  issn         = {{1615-7605}},
  keywords     = {{cerevisiae; Saccharomyces; xylose uptake; jinetic modeling; hexose transporters}},
  language     = {{eng}},
  number       = {{4}},
  pages        = {{369--377}},
  publisher    = {{Springer}},
  series       = {{Bioprocess and Biosystems Engineering}},
  title        = {{Modeling simultaneous glucose and xylose uptake in Saccharomyces cerevisiae from kinetics and gene expression of sugar transporters}},
  url          = {{http://dx.doi.org/10.1007/s00449-007-0169-1}},
  doi          = {{10.1007/s00449-007-0169-1}},
  volume       = {{31}},
  year         = {{2008}},
}