H. Ertesvåg

发表

Mannuronan C-5 epimerases suited for tailoring of specific alginate structures obtained by high-throughput screening of an epimerase mutant library.

A. Tøndervik, G. Klinkenberg, F. Aachmann, 2013, Biomacromolecules.

Cloning and expression of an Azotobacter vinelandii mannuronan C-5-epimerase gene

H. Ertesvåg, S. Valla, G. Skjåk‐Braek, 1994, Journal of bacteriology.

A family of modular type mannuronan C‐5‐epimerase genes controls alginate structure in Azotobacter vinelandii

H. Ertesvåg, S. Valla, B. Doseth, 1995, Molecular microbiology.

A new Azotobacter vinelandii mannuronan C-5-epimerase gene (algG) is part of an alg gene cluster physically organized in a manner similar to that in Pseudomonas aeruginosa

H. Ertesvåg, S. Valla, B. Rehm, 1996, Journal of bacteriology.

Biochemical Properties and Substrate Specificities of a Recombinantly Produced Azotobacter vinelandiiAlginate Lyase

H. Ertesvåg, S. Valla, G. Skjåk-Bræk, 1998, Journal of bacteriology.

Mannuronan C-5-epimerases and their application for in vitro and in vivo design of new alginates useful in biotechnology.

H. Schjerven, H. Ertesvåg, S. Valla, 1999, Metabolic engineering.

The Catalytic Activities of the Bifunctional Azotobacter vinelandii Mannuronan C-5-Epimerase and Alginate Lyase AlgE7 Probably Originate from the Same Active Site in the Enzyme*

M. Hartmann, B. G. Svanem, H. Ertesvåg, 2001, The Journal of Biological Chemistry.

The Pseudomonas fluorescens AlgG Protein, but Not Its Mannuronan C-5-Epimerase Activity, Is Needed for Alginate Polymer Formation

H. Ertesvåg, T. Ellingsen, S. Valla, 2003, Journal of bacteriology.

The dual roles of AlgG in C‐5‐epimerization and secretion of alginate polymers in Pseudomonas aeruginosa

H. Ertesvåg, S. Valla, M. Franklin, 2003, Molecular microbiology.

The Pseudomonas syringae Genome Encodes a Combined Mannuronan C-5-epimerase and O-Acetylhydrolase, Which Strongly Enhances the Predicted Gel-forming Properties of Alginates*

F. Drabløs, H. Ertesvåg, S. Valla, 2004, Journal of Biological Chemistry.

Role of the Pseudomonas fluorescens Alginate Lyase (AlgL) in Clearing the Periplasm of Alginates Not Exported to the Extracellular Environment

H. Ertesvåg, T. Ellingsen, S. Valla, 2005, Journal of bacteriology.

The Azotobacter vinelandii AlgE mannuronan C-5-epimerase family is essential for the in vivo control of alginate monomer composition and for functional cyst formation.

H. Ertesvåg, T. Ellingsen, S. Valla, 2008, Environmental microbiology.

Green Foam-Based Methods of Mineral and Ion Separation

H. Ertesvåg, I. Chernyshova, Garima Jain, 2020, Multidisciplinary Advances in Efficient Separation Processes.

Mechanistic Basis for Understanding the Dual Activities of the Bifunctional Azotobacter vinelandii Mannuronan C-5-Epimerase and Alginate Lyase AlgE7

B. Svensson, A. Tøndervik, F. Aachmann, 2021, Applied and environmental microbiology.

Mechanistic basis for understanding the dual activities of the bifunctional Azotobacter vinelandii mannuronan C-5 epimerase and alginate lyase AlgE7

B. Svensson, A. Tøndervik, F. Aachmann, 2021 .

Rapid reagentless quantification of alginate biosynthesis in Pseudomonas fluorescens bacteria mutants using FT-IR spectroscopy coupled to multivariate partial least squares regression

David I. Ellis, R. Goodacre, D. I. Ellis, 2012, Analytical and Bioanalytical Chemistry.

Modification of Alginate Using Mannuronan C-5-Epimerases

H. Ertesvåg, G. Skjåk-Bræk, 1999 .

The Recombinant Azotobacter vinelandii Mannuronan C-5-Epimerase AlgE4 Epimerizes Alginate by a Nonrandom Attack Mechanism*

H. Ertesvåg, S. Valla, G. Skjåk-Bræk, 1999, The Journal of Biological Chemistry.

Biosynthesis and applications of alginates

H. Ertesvåg, S. Valla, 1998 .

Safety in numbers: multiple occurrences of highly similar homologs among Azotobacter vinelandii carbohydrate metabolism proteins probably confer adaptive benefits

F. Drabløs, H. Ertesvåg, S. Valla, 2014, BMC Genomics.

Hexuronyl C5-epimerases in alginate and glycosaminoglycan biosynthesis.

H. Ertesvåg, S. Valla, T. Barbeyron, 2001, Biochimie.

New insights into Pseudomonas fluorescens alginate biosynthesis relevant for the establishment of an efficient production process for microbial alginates.

H. Ertesvåg, S. Valla, Mali Mærk, 2017, New biotechnology.

Combined Metabolome and Lipidome Analyses for In-Depth Characterization of Lipid Accumulation in the DHA Producing Aurantiochytrium sp. T66

P. Bruheim, H. Ertesvåg, I. Aasen, 2021, Metabolites.

Mapping global effects of the anti-sigma factor MucA in Pseudomonas fluorescens SBW25 through genome-scale metabolic modeling

Jens Nielsen, Sven E. F. Borgos, Sergio Bordel, 2013, BMC Systems Biology.

Identification of a New Phosphatase Enzyme Potentially Involved in the Sugar Phosphate Stress Response in Pseudomonas fluorescens

H. Ertesvåg, S. Zotchev, Radka Hrudíková, 2016, Applied and Environmental Microbiology.

Mutational Analyses of Glucose Dehydrogenase and Glucose-6-Phosphate Dehydrogenase Genes in Pseudomonas fluorescens Reveal Their Effects on Growth and Alginate Production

H. Ertesvåg, S. Valla, Mali Mærk, 2015, Applied and Environmental Microbiology.

Thraustochytrids as production organisms for docosahexaenoic acid (DHA), squalene, and carotenoids

B. Liu, Bin Liu, H. Ertesvåg, 2016, Applied Microbiology and Biotechnology.

Guluronic acid content as a factor affecting turbidity removal potential of alginate

F. Sanin, H. Ertesvåg, Ç. Kıvılcımdan Moral, 2016, Environmental Science and Pollution Research.

Heterologous gene expression in Lactococcus lactis; expression of the Azotobacter vinelandii algE6 gene product displaying mannuronan C-5 epimerase activity.

J. Blatny, H. Ertesvåg, S. Valla, 2003, FEMS microbiology letters.

The A Modules of the Azotobacter vinelandii Mannuronan-C-5-Epimerase AlgE1 Are Sufficient for both Epimerization and Binding of Ca2+

H. Ertesvåg, S. Valla, 1999, Journal of bacteriology.

Improved site-specific mutagenesis in Rhodococcus opacus using a novel conditional suicide plasmid

H. Ertesvåg, Garima Jain, 2022, Applied Microbiology and Biotechnology.

Alginate-modifying enzymes: biological roles and biotechnological uses

H. Ertesvåg, 2015, Front. Microbiol..

Functional characterization of three Azotobacter chroococcum alginate-modifying enzymes related to the Azotobacter vinelandii AlgE mannuronan C-5-epimerase family

F. Aachmann, H. Ertesvåg, T. Brautaset, 2020, Scientific Reports.

Construction and characterization of broad-host-range reporter plasmid suitable for on-line analysis of bacterial host responses related to recombinant protein production

P. Neubauer, H. Ertesvåg, Karl Peebo, 2019, Microbial Cell Factories.

Thraustochytrids as production organisms for docosahexaenoic acid (DHA), squalene, and carotenoids

B. Liu, H. Ertesvåg, T. Ellingsen, 2016, Applied Microbiology and Biotechnology.

Method Development Progress in Genetic Engineering of Thraustochytrids

H. Ertesvåg, Evelyn M. Rau, 2021, Marine drugs.

A non-canonical Δ9-desaturase synthesizing palmitoleic acid identified in the thraustochytrid Aurantiochytrium sp. T66

H. Ertesvåg, I. Aasen, Evelyn M. Rau, 2021, Applied Microbiology and Biotechnology.

Safety in numbers: multiple occurrences of highly similar homologs among Azotobacter vinelandii carbohydrate metabolism proteins probably confer adaptive benefits

F. Drabløs, H. Ertesvåg, S. Valla, 2014, BMC Genomics.

Translational regulation of periplasmic folding assistants and proteases as a valuable strategy to improve production of translocated recombinant proteins in Escherichia coli

H. Ertesvåg, J. Malmo, T. Brautaset, 2020, BMC Biotechnology.

Identification and Characterization of an Azotobacter vinelandii Type I Secretion System Responsible for Export of the AlgE-Type Mannuronan C-5-Epimerases

H. Ertesvåg, S. Valla, B. Christensen, 2006, Journal of bacteriology.

Genome Sequence of Azotobacter vinelandii , an Obligate Aerobe Specialized To Support Diverse Anaerobic Metabolic Processes †

Jian Sun, Erik Wallin, Huijun Zhu, 2009 .

The genome sequence of Azotobacter vinelandii , an obligate 1 aerobe specialized to support diverse anaerobic metabolic 2 processes 3 4 running title : Genome sequence of Azotobacter vinelandii 5 6

Balasubramanian, S. L. Stricklin, B. Goldman, 2009 .

Lipid and DHA-production in Aurantiochytrium sp. – Responses to nitrogen starvation and oxygen limitation revealed by analyses of production kinetics and global transcriptomes

Bin Liu, H. Ertesvåg, T. Ellingsen, 2019, Scientific Reports.

Draft genome sequence of the docosahexaenoic acid producing thraustochytrid Aurantiochytrium sp. T66

B. Liu, H. Ertesvåg, I. Aasen, 2016, Genomics data.

Characterization of Three New Azotobacter vinelandii Alginate Lyases, One of Which Is Involved in Cyst Germination

H. Ertesvåg, S. Valla, T. M. Heggeset, 2009, Journal of bacteriology.

Mannuronate C-5 epimerases and their use in alginate modification.

A. Tøndervik, F. Aachmann, H. Ertesvåg, 2023, Essays in biochemistry.

Enzymatic Alginate Modification

Helga Ertesvåg, Svein Valla, H. Ertesvåg, 2009 .

Isolation of Mutant Alginate Lyases with Cleavage Specificity for Di-guluronic Acid Linkages*

F. Drabløs, A. Tøndervik, G. Klinkenberg, 2010, The Journal of Biological Chemistry.

Alginate Biosynthesis Factories in Pseudomonas fluorescens: Localization and Correlation with Alginate Production Level

Helga Ertesvåg, Svein Valla, Eivind Almaas, 2015, Applied and Environmental Microbiology.

Cloning and Expression of Three NewAzotobacter vinelandii Genes Closely Related to a Previously Described Gene Family Encoding Mannuronan C-5-Epimerases

H. Ertesvåg, S. Valla, G. Skjåk-Bræk, 1999, Journal of bacteriology.

Structural and Mutational Characterization of the Catalytic A-module of the Mannuronan C-5-epimerase AlgE4 from Azotobacter vinelandii*

K. H. Kalk, B. Dijkstra, H. Rozeboom, 2008, Journal of Biological Chemistry.

Construction and analyses of hybrid Azotobacter vinelandii mannuronan C-5 epimerases with new epimerization pattern characteristics.

H. Ertesvåg, S. Valla, G. Skjåk‐Braek, 2004, The Biochemical journal.

The Azotobacter vinelandii Mannuronan C-5-Epimerase AlgE1 Consists of Two Separate Catalytic Domains*

H. Ertesvåg, S. Valla, G. Skjåk-Bræk, 1998, The Journal of Biological Chemistry.

RpoS controls the expression and the transport of the AlgE1-7 epimerases in Azotobacter vinelandii

H. Ertesvåg, S. Valla, C. Núñez, 2018, FEMS microbiology letters.

Strain Construction and Process Development for Efficient Recombinant Production of Mannuronan C-5 Epimerases in Hansenula polymorpha

M. Piontek, A. Tøndervik, H. Ertesvåg, 2022, Frontiers in Plant Science.

Alginates as Green Flocculants for Metal Oxide Nanoparticles

H. Ertesvåg, V. Slabov, Garima Jain, 2023, Transactions of the Indian Institute of Metals.

Identification of genes affecting alginate biosynthesis in Pseudomonas fluorescens by screening a transposon insertion library

G. Klinkenberg, H. Ertesvåg, T. Ellingsen, 2017, BMC Genomics.

Overexpression of Two New Acyl-CoA:Diacylglycerol Acyltransferase 2-Like Acyl-CoA:Sterol Acyltransferases Enhanced Squalene Accumulation in Aurantiochytrium limacinum

P. Bruheim, H. Ertesvåg, I. Aasen, 2022, Frontiers in Microbiology.

Identification of Regulatory Genes and Metabolic Processes Important for Alginate Biosynthesis in Azotobacter vinelandii by Screening of a Transposon Insertion Mutant Library

Øyvind M. Jakobsen, A. Tøndervik, G. Klinkenberg, 2020, Frontiers in Bioengineering and Biotechnology.

Species-Dependent Phenotypes of Replication-Temperature-SensitivetrfA Mutants of Plasmid RK2: a Codon-Neutral Base Substitution Stimulates Temperature Sensitivity by Leading to Reduced Levels of trfA Expression

H. Ertesvåg, S. Valla, P. Karunakaran, 1998, Journal of bacteriology.

Alginate Biosynthesis Factories in Pseudomonas fluorescens: Localization and Correlation with Alginate Production Level

E. Almaas, H. Ertesvåg, S. Valla, 2015, Applied and Environmental Microbiology.

Genome Sequence of Azotobacter vinelandii, an Obligate Aerobe Specialized To Support Diverse Anaerobic Metabolic Processes

B. Goldman, I. Paulsen, J. Setubal, 2009, Journal of bacteriology.