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  1. Article

    Open Access

    Genome-scale metabolic models reveal determinants of phenotypic differences in non-Saccharomyces yeasts

    Use of alternative non-Saccharomyces yeasts in wine and beer brewing has gained more attention the recent years. This is both due to the desire to obtain a wider variety of flavours in the product and to reduce t...

    Jakob P. Pettersen, Sandra Castillo, Paula Jouhten, Eivind Almaas in BMC Bioinformatics (2023)

  2. Article

    Open Access

    Phage therapy minimally affects the water microbiota in an Atlantic salmon (Salmo salar) rearing system while still preventing infection

    Excessive usage of antibiotics threatens the bacterial diversity in the microbiota of animals. An alternative to antibiotics that has been suggested to not disturb the microbiota is (bacterio)phage therapy. In...

    Alexander W. Fiedler, Madeleine S. Gundersen, Toan P. Vo in Scientific Reports (2023)

  3. Article

    Open Access

    Parameter inference for enzyme and temperature constrained genome-scale models

    The metabolism of all living organisms is dependent on temperature, and therefore, having a good method to predict temperature effects at a system level is of importance. A recently developed Bayesian computat...

    Jakob Peder Pettersen, Eivind Almaas in Scientific Reports (2023)

  4. Article

    Open Access

    csdR, an R package for differential co-expression analysis

    Differential co-expression network analysis has become an important tool to gain understanding of biological phenotypes and diseases. The CSD algorithm is a method to generate differential co-expression networ...

    Jakob P. Pettersen, Eivind Almaas in BMC Bioinformatics (2022)

  5. No Access

    Protocol

    Complex Network Analysis in Microbial Systems: Theory and Examples

    A central driver for the field of systems biology is to develop an understanding of how interactions between components affect the functioning of a system as a whole. Network analysis is an approach that is uniqu...

    André Voigt, Eivind Almaas in Microbial Systems Biology (2022)

  6. Article

    Open Access

    Robust bacterial co-occurence community structures are independent of r- and K-selection history

    Selection for bacteria which are K-strategists instead of r-strategists has been shown to improve fish health and survival in aquaculture. We considered an experiment where microcosms were inoculated with natural...

    Jakob Peder Pettersen, Madeleine S. Gundersen, Eivind Almaas in Scientific Reports (2021)

  7. Article

    Open Access

    Correction to: Containing pandemics through targeted testing of households

    André Voigt, Nikolay Martyushenko, Emil Karlsen, Martina Hall in BMC Infectious Diseases (2021)

  8. Article

    Open Access

    Containing pandemics through targeted testing of households

    While invasive social distancing measures have proven efficient to control the spread of pandemics failing wide-scale deployment of vaccines, they carry vast societal costs. The development of a diagnostic met...

    André Voigt, Nikolay Martyushenko, Emil Karlsen, Martina Hall in BMC Infectious Diseases (2021)

  9. Article

    Open Access

    Correction to: Automatic reconstruction of metabolic pathways from identified biosynthetic gene clusters

    An amendment to this paper has been published and can be accessed via the original article.

    Snorre Sulheim, Fredrik A. Fossheim, Alexander Wentzel, Eivind Almaas in BMC Bioinformatics (2021)

  10. Article

    Open Access

    Automatic reconstruction of metabolic pathways from identified biosynthetic gene clusters

    A wide range of bioactive compounds is produced by enzymes and enzymatic complexes encoded in biosynthetic gene clusters (BGCs). These BGCs can be identified and functionally annotated based on their DNA seque...

    Snorre Sulheim, Fredrik A. Fossheim, Alexander Wentzel, Eivind Almaas in BMC Bioinformatics (2021)

  11. Article

    Open Access

    Addressing uncertainty in genome-scale metabolic model reconstruction and analysis

    The reconstruction and analysis of genome-scale metabolic models constitutes a powerful systems biology approach, with applications ranging from basic understanding of genotype-phenotype map** to solving bio...

    David B. Bernstein, Snorre Sulheim, Eivind Almaas, Daniel Segrè in Genome Biology (2021)

  12. Article

    Open Access

    GREM1 is associated with metastasis and predicts poor prognosis in ER-negative breast cancer patients

    In breast cancer, activation of bone morphogenetic protein (BMP) signaling and elevated levels of BMP-antagonists have been linked to tumor progression and metastasis. However, the simultaneous upregulation of...

    Ulrike Neckmann, Camilla Wolowczyk, Martina Hall in Cell Communication and Signaling (2019)

  13. Article

    Open Access

    ModelExplorer - software for visual inspection and inconsistency correction of genome-scale metabolic reconstructions

    Genome-scale metabolic network reconstructions are low level chemical representations of biological organisms. These models allow the system-level investigation of metabolic phenotypes using a variety of compu...

    Nikolay Martyushenko, Eivind Almaas in BMC Bioinformatics (2019)

  14. Article

    Open Access

    Assessment of weighted topological overlap (wTO) to improve fidelity of gene co-expression networks

    For more than a decade, gene expression data sets have been used as basis for the construction of co-expression networks used in systems biology investigations, leading to many important discoveries in a wide ...

    André Voigt, Eivind Almaas in BMC Bioinformatics (2019)

  15. Article

    Open Access

    Automated generation of genome-scale metabolic draft reconstructions based on KEGG

    Constraint-based modeling is a widely used and powerful methodology to assess the metabolic phenotypes and capabilities of an organism. The starting point and cornerstone of all such modeling is a genome-scale...

    Emil Karlsen, Christian Schulz, Eivind Almaas in BMC Bioinformatics (2018)

  16. Article

    Open Access

    wTO: an R package for computing weighted topological overlap and a consensus network with integrated visualization tool

    Network analyses, such as of gene co-expression networks, metabolic networks and ecological networks have become a central approach for the systems-level study of biological data. Several software packages exi...

    Deisy Morselli Gysi, Andre Voigt, Tiago de Miranda Fragoso in BMC Bioinformatics (2018)

  17. Article

    Open Access

    Robust Analysis of Fluxes in Genome-Scale Metabolic Pathways

    Constraint-based optimization, such as flux balance analysis (FBA), has become a standard systems-biology computational method to study cellular metabolisms that are assumed to be in a steady state of optimal ...

    Michael MacGillivray, Amy Ko, Emily Gruber, Miranda Sawyer in Scientific Reports (2017)

  18. Article

    Open Access

    Hypothetical biomolecular probe based on a genetic switch with tunable symmetry and stability

    Genetic switches are ubiquitous in nature, frequently associated with the control of cellular functions and developmental programs. In the realm of synthetic biology, it is of great interest to engineer geneti...

    Nikolay Martyushenko, Sigurd Hagen Johansen, Cheol-Min Ghim in BMC Systems Biology (2016)

  19. Article

    Open Access

    Strategies for structuring interdisciplinary education in Systems Biology: an European perspective

    Systems Biology is an approach to biology and medicine that has the potential to lead to a better understanding of how biological properties emerge from the interaction of genes, proteins, molecules, cells and...

    Marija Cvijovic, Thomas Höfer, Jure Aćimović in npj Systems Biology and Applications (2016)

  20. Article

    Open Access

    Genome-level transcription data of Yersinia pestis analyzed with a New metabolic constraint-based approach

    Constraint-based computational approaches, such as flux balance analysis (FBA), have proven successful in modeling genome-level metabolic behavior for conditions where a set of simple cellular objectives can b...

    Ali Navid, Eivind Almaas in BMC Systems Biology (2012)

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