Svein Valla
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Norwegian molecular biologist
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(Suggest an Edit or Addition)According to Wikipedia, Svein Valla was a Norwegian molecular biologist. He was a professor of microbial molecular biology at the Norwegian University of Science and Technology and fellow of the Norwegian Academy of Science and Letters.
Svein Valla's Published Works
Published Works
- Bacterial alginates: biosynthesis and applications (1997) (302)
- Construction and use of a versatile set of broad-host-range cloning and expression vectors based on the RK2 replicon (1997) (260)
- Biosynthesis of the polyene antifungal antibiotic nystatin in Streptomyces noursei ATCC 11455: analysis of the gene cluster and deduction of the biosynthetic pathway. (2000) (235)
- Genome Sequence of Azotobacter vinelandii, an Obligate Aerobe Specialized To Support Diverse Anaerobic Metabolic Processes (2009) (221)
- Biosynthesis and applications of alginates (1998) (209)
- Improved broad-host-range RK2 vectors useful for high and low regulated gene expression levels in gram-negative bacteria. (1997) (178)
- A new gene required for cellulose production and a gene encoding cellulolytic activity in Acetobacter xylinum are colocalized with the bcs operon (1994) (164)
- The Pseudomonas fluorescens AlgG Protein, but Not Its Mannuronan C-5-Epimerase Activity, Is Needed for Alginate Polymer Formation (2003) (146)
- A family of modular type mannuronan C‐5‐epimerase genes controls alginate structure in Azotobacter vinelandii (1995) (144)
- The Presence of N-Terminal Secretion Signal Sequences Leads to Strong Stimulation of the Total Expression Levels of Three Tested Medically Important Proteins during High-Cell-Density Cultivations of Escherichia coli (2006) (115)
- Cloning and expression of an Azotobacter vinelandii mannuronan C-5-epimerase gene (1994) (114)
- In Vivo Analysis of the Regulatory Genes in the Nystatin Biosynthetic Gene Cluster of Streptomyces noursei ATCC 11455 Reveals Their Differential Control Over Antibiotic Biosynthesis (2004) (103)
- A comparative analysis of the properties of regulated promoter systems commonly used for recombinant gene expression in Escherichia coli (2013) (103)
- Cloning and Expression of Three NewAzotobacter vinelandii Genes Closely Related to a Previously Described Gene Family Encoding Mannuronan C-5-Epimerases (1999) (96)
- Broad-Host-Range Plasmid pJB658 Can Be Used for Industrial-Level Production of a Secreted Host-Toxic Single-Chain Antibody Fragment in Escherichia coli (2004) (90)
- Mannuronan C-5-epimerases and their application for in vitro and in vivo design of new alginates useful in biotechnology. (1999) (89)
- New broad-host-range promoter probe vectors based on the plasmid RK2 replicon. (2001) (89)
- Role of the Pseudomonas fluorescens Alginate Lyase (AlgL) in Clearing the Periplasm of Alginates Not Exported to the Extracellular Environment (2005) (87)
- Cellulose-negative Mutants of Acetobacter xylinum (1982) (86)
- AlgX Is a Periplasmic Protein Required for Alginate Biosynthesis in Pseudomonas aeruginosa (2004) (86)
- 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 (1996) (84)
- Ionic and acid gel formation of epimerised alginates; the effect of AlgE4. (2000) (83)
- Metagenomics of microbial life in extreme temperature environments. (2013) (82)
- Positively regulated bacterial expression systems (2008) (81)
- The dual roles of AlgG in C‐5‐epimerization and secretion of alginate polymers in Pseudomonas aeruginosa (2003) (77)
- The Recombinant Azotobacter vinelandii Mannuronan C-5-Epimerase AlgE4 Epimerizes Alginate by a Nonrandom Attack Mechanism* (1999) (76)
- A plasmid RK2-based broad-host-range cloning vector useful for transfer of metagenomic libraries to a variety of bacterial species. (2009) (76)
- Plasmid-Dependent Methylotrophy in Thermotolerant Bacillus methanolicus (2004) (75)
- Characterization of Three New Azotobacter vinelandii Alginate Lyases, One of Which Is Involved in Cyst Germination (2009) (70)
- 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* (2001) (66)
- Cloning of a gene involved in cellulose biosynthesis in Acetobacter xylinum: Complementation of cellulose-negative mutants by the UDPG pyrophosphorylase structural gene (1989) (66)
- Hexuronyl C5-epimerases in alginate and glycosaminoglycan biosynthesis. (2001) (65)
- Biochemical Properties and Substrate Specificities of a Recombinantly Produced Azotobacter vinelandiiAlginate Lyase (1998) (64)
- High coverage sequencing of DNA from microorganisms living in an oil reservoir 2.5 kilometres subsurface. (2011) (60)
- A New and Improved Host-Independent Plasmid System for RK2-Based Conjugal Transfer (2014) (60)
- Identification of a gene cluster for antibacterial polyketide-derived antibiotic biosynthesis in the nystatin producer Streptomyces noursei ATCC 11455. (2000) (58)
- Isolation and characterization of marine pigmented bacteria from Norwegian coastal waters and screening for carotenoids with UVA-blue light absorbing properties (2010) (58)
- Random Mutagenesis of the Pm Promoter as a Powerful Strategy for Improvement of Recombinant-Gene Expression (2009) (55)
- Upregulated Transcription of Plasmid and Chromosomal Ribulose Monophosphate Pathway Genes Is Critical for Methanol Assimilation Rate and Methanol Tolerance in the Methylotrophic Bacterium Bacillus methanolicus (2006) (53)
- Mannuronan C-5 epimerases and cellular differentiation of Azotobacter vinelandii. (2000) (52)
- The microbial communities in two apparently physically separated deep subsurface oil reservoirs show extensive DNA sequence similarities. (2014) (52)
- Physiological Analysis of the Expression of the Styrene Degradation Gene Cluster in Pseudomonas fluorescensST (2000) (52)
- Overexpression of Wild-Type Aspartokinase Increases l-Lysine Production in the Thermotolerant Methylotrophic Bacterium Bacillus methanolicus (2008) (51)
- Structural and Mutational Characterization of the Catalytic A-module of the Mannuronan C-5-epimerase AlgE4 from Azotobacter vinelandii* (2008) (50)
- The A Modules of the Azotobacter vinelandii Mannuronan-C-5-Epimerase AlgE1 Are Sufficient for both Epimerization and Binding of Ca2+ (1999) (49)
- The expression of recombinant genes in Escherichia coli can be strongly stimulated at the transcript production level by mutating the DNA‐region corresponding to the 5′‐untranslated part of mRNA (2009) (48)
- Parameters affecting gene expression from the Pm promoter in gram-negative bacteria. (2000) (47)
- Upregulated transcription of plasmid and chromosomal ribulose monophosphate pathway genes is critical for methanol assimilation rate and methanol tolerance in the methylotrophic bacterium Bacillus methanolicus. (2006) (45)
- The XylS/Pm regulator/promoter system and its use in fundamental studies of bacterial gene expression, recombinant protein production and metabolic engineering (2017) (43)
- Isolation and characterization of a new extracellular polysaccharide from a cellulose-negative strain of Acetobacter xylinum. (1981) (43)
- NMR Structure of the R-module (2006) (41)
- Molecular cloning and analysis of a pleiotropic regulatory gene locus from the nystatin producer Streptomyces noursei ATCC11455. (1999) (41)
- Pm promoter expression mutants and their use in broad-host-range RK2 plasmid vectors. (2000) (40)
- The Azotobacter vinelandii Mannuronan C-5-Epimerase AlgE1 Consists of Two Separate Catalytic Domains* (1998) (40)
- Hexaene derivatives of nystatin produced as a result of an induced rearrangement within the nysC polyketide synthase gene in S. noursei ATCC 11455. (2002) (37)
- Nucleotide sequence and expression analysis of the Acetobacter xylinum uridine diphosphoglucose pyrophosphorylase gene (1991) (37)
- Isolation of Mutant Alginate Lyases with Cleavage Specificity for Di-guluronic Acid Linkages* (2010) (37)
- 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. (2008) (35)
- Identification and Characterization of an Azotobacter vinelandii Type I Secretion System Responsible for Export of the AlgE-Type Mannuronan C-5-Epimerases (2006) (34)
- Construction and analyses of hybrid Azotobacter vinelandii mannuronan C-5 epimerases with new epimerization pattern characteristics. (2004) (33)
- Directed evolution of the transcription factor XylS for development of improved expression systems (2009) (30)
- Mapping global effects of the anti-sigma factor MucA in Pseudomonas fluorescens SBW25 through genome-scale metabolic modeling (2013) (30)
- Mannuronan C-5 epimerases suited for tailoring of specific alginate structures obtained by high-throughput screening of an epimerase mutant library. (2013) (29)
- Combinatorial Mutagenesis and Selection of Improved Signal Sequences and Their Application for High-Level Production of Translocated Heterologous Proteins in Escherichia coli (2012) (28)
- Continuous Control of the Flow in Biochemical Pathways through 5′ Untranslated Region Sequence Modifications in mRNA Expressed from the Broad-Host-Range Promoter Pm (2011) (27)
- In vitro determined kinetic properties of mutant phosphoglucomutases and their effects on sugar catabolism in Escherichia coli. (2000) (27)
- Nucleotide sequence and expression analysis of the Acetobacter xylinum phosphoglucomutase gene. (1994) (27)
- Alginate Biosynthesis Factories in Pseudomonas fluorescens: Localization and Correlation with Alginate Production Level (2015) (27)
- Enzymatic Alginate Modification (2009) (27)
- Structural and Functional Characterization of the R-modules in Alginate C-5 Epimerases AlgE4 and AlgE6 from Azotobacter vinelandii (2014) (26)
- Rapid reagentless quantification of alginate biosynthesis in Pseudomonas fluorescens bacteria mutants using FT-IR spectroscopy coupled to multivariate partial least squares regression (2012) (26)
- The Pseudomonas syringae Genome Encodes a Combined Mannuronan C-5-epimerase and O-Acetylhydrolase, Which Strongly Enhances the Predicted Gel-forming Properties of Alginates* (2004) (25)
- DNA Cloning and Assembly Methods (2014) (25)
- Properties and action pattern of the recombinant mannuronan C-5-epimerase AlgE2 (1999) (24)
- The Acinetobacter sp. chnB promoter together with its cognate positive regulator ChnR is an attractive new candidate for metabolic engineering applications in bacteria. (2008) (23)
- Time-resolved 1H and 13C NMR spectroscopy for detailed analyses of the Azotobacter vinelandii mannuronan C-5 epimerase reaction. (2002) (22)
- Combinatorial Mutagenesis and Selection to Understand and Improve Yeast Promoters (2013) (22)
- Complementation of cellulose-negative mutants of Acetobacter xylinum by the cloned structural gene for phosphoglucomutase (1991) (22)
- Conjugative transfer of the naturally occurring plasmids of Acetobacter xylinum by IncP-plasmid-mediated mobilization (1986) (21)
- Identification of genes affecting alginate biosynthesis in Pseudomonas fluorescens by screening a transposon insertion library (2017) (18)
- Investigating alginate production and carbon utilization in Pseudomonas fluorescens SBW25 using mass spectrometry-based metabolic profiling (2013) (18)
- Exploring the 5'-UTR DNA region as a target for optimizing recombinant gene expression from the strong and inducible Pm promoter in Escherichia coli. (2012) (18)
- Mutational Analyses of Glucose Dehydrogenase and Glucose-6-Phosphate Dehydrogenase Genes in Pseudomonas fluorescens Reveal Their Effects on Growth and Alginate Production (2015) (17)
- Deep Subsurface Oil Reservoirs as Poly-extreme Habitats for Microbial Life. A Current Review (2013) (17)
- 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 (2009) (17)
- 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 (1998) (16)
- Use of protein trans‐splicing to produce active and segmentally 2H, 15N labeled mannuronan C5‐epimerase AlgE4 (2010) (15)
- New insights into Pseudomonas fluorescens alginate biosynthesis relevant for the establishment of an efficient production process for microbial alginates. (2017) (15)
- An experimental study on carbon flow in Escherichia coli as a function of kinetic properties and expression levels of the enzyme phosphoglucomutase. (1998) (15)
- Broad-host-range plasmid vectors for gene expression in bacteria. (2011) (15)
- Heterologous gene expression in Lactococcus lactis; expression of the Azotobacter vinelandii algE6 gene product displaying mannuronan C-5 epimerase activity. (2003) (13)
- Strong stimulation of recombinant protein production in Escherichia coli by combining stimulatory control elements in an expression cassette (2012) (13)
- Design and Optimization of Short DNA Sequences That Can Be Used as 5′ Fusion Partners for High-Level Expression of Heterologous Genes in Escherichia coli (2013) (10)
- Safety in numbers: multiple occurrences of highly similar homologs among Azotobacter vinelandii carbohydrate metabolism proteins probably confer adaptive benefits (2014) (10)
- Regulation of the expression level of transcription factor XylS reveals new functional insight into its induction mechanism at the Pm promoter (2013) (10)
- Ralstonia sp. U2 naphthalene dioxygenase and Comamonas sp. JS765 nitrobenzene dioxygenase show differences in activity towards methylated naphthalenes. (2012) (10)
- ST Pseudomonas fluorescens the Styrene Degradation Gene Cluster in Physiological Analysis of the Expression of (2000) (9)
- The plasmids of acetobacter xylinum and their interaction with the host chromosome (2004) (8)
- NMR assignment of the R-module from the Azotobacter vinelandii Mannuronan C5-epimerase AlgE4 (2005) (8)
- Discovery and Characterization of a Thermostable Esterase from an Oil Reservoir Metagenome (2016) (8)
- Benzoic Acid-Inducible Gene Expression in Mycobacteria (2015) (8)
- Acetobacter xylinum contains several plasmids: Evidence for their involvement in cellulose formation (2004) (8)
- Metagenomic libraries for functional screening (2011) (7)
- Identification of Regulatory Genes and Metabolic Processes Important for Alginate Biosynthesis in Azotobacter vinelandii by Screening of a Transposon Insertion Mutant Library (2020) (6)
- Non-Invasive Analysis of Recombinant mRNA Stability in Escherichia coli by a Combination of Transcriptional Inducer Wash-Out and qRT-PCR (2013) (5)
- Combinatorial engineering for heterologous gene expression (2013) (4)
- NMR assignments of 1H, 13C and 15N resonances of the C-terminal subunit from Azotobacter vinelandii mannuronan C5-epimerase 6 (AlgE6R3) (2010) (4)
- Electrostatic studies of carbohydrate active enzymes (1995) (3)
- Meeting Report: 1st International Functional Metagenomics Workshop May 7–8, 2012, St. Jacobs, Ontario, Canada. (2013) (3)
- RpoS controls the expression and the transport of the AlgE1-7 epimerases in Azotobacter vinelandii (2018) (3)
- 1H, 13C and 15N resonances of the AlgE62 subunit from Azotobacter vinelandii mannuronan C5-epimerase (2010) (3)
- The plasmids of Acetobacter xylinum and their interaction with the host chromosome (1987) (2)
- Overexpression of wild-type aspartokinase increases L-lysine production in methylotrophic Bacillus methanolicus (2008) (2)
- The future is artificial (2009) (1)
- Erratum: A new gene required for cellulose production and a gene encoding cellulolytic activity in Acetobacter xylinum are colocalized with the bcs operon (Journal of Bacteriology 176:3 (665-672)) (1994) (1)
- mannuronan C5-epimerase AlgE4 (2010) (1)
- Increased plasmid copy number allows better utilization of cell resources (2013) (1)
- Azotobacter vinelandii Mannuronan C-5 epimerase AlgE4 A-module complexed with mannuronan trisaccharide (2008) (0)
- Improved expression approach (2007) (0)
- University of Groningen Structural and mutational characterization of the catalytic A-module of the mannuronan C-5- epimerase AlgE4 from Azotobacter vinelandii Rozeboom, (2008) (0)
- Heterologous Genes in Escherichia coli Partners for High-Level Expression of Fusion ' Sequences That Can Be Used as 5 Design and Optimization of Short DNA (2014) (0)
- Improving bacterial recombinant gene expression by separate optimization and combination of two functional parts of 5’-UTR sequences. (2014) (0)
- High coverage sequencing of DNA from ancient microorganisms living at 250 bars 2.5 kilometers subsurface in a Norwegian sea oil reservoir (2011) (0)
- Fine tuning of gene expression in Escherichia coli over five log-factors by using mutations in the 5´- UTR DNA region (2010) (0)
- Production in Escherichia coli of a melanin-like polymer from a marine sediment metagenomic clone expressing rubrerythrin (2011) (0)
- microbial biotechnology (2013) (0)
- Escherichia coli Translocated Heterologous Proteins in Application for High-Level Production of of Improved Signal Sequences and Their Combinatorial Mutagenesis and Selection (2014) (0)
- Identification of genes affecting alginate biosynthesis in Pseudomonas fluorescens by screening a transposon insertion library (2017) (0)
- Issue information (2013) (0)
- New and improved biological tools for conjugal transfer of plasmids (2011) (0)
- Non-invasiveanalysis of mRNA decay rates by a combination of inducer wash‐out and qRTPCR (2012) (0)
- DNA compounds that contain mannuronan C-5-epimerase coding sequences (1995) (0)
- DNA compounds with mannuronan C-5-epimerase coding sequences (1993) (0)
- High-level heterologous protein expression in Esherichia coli by combining mutations in three different regulatory elements (2010) (0)
- Regulation of the expression level of transcription factor XylS reveals new functional insight into its induction mechanism at the Pmpromoter (2013) (0)
- The performance of theXylS/Pm system compared to other commercially available regulator/promotersystems used in bacterial recombinant expression (2012) (0)
- Special Issue: Recombinant Protein Expression in Microorganisms (2019) (0)
- Safety in numbers: multiple occurrences of highly similar homologs among Azotobacter vinelandiicarbohydrate metabolism proteins probably confer adaptive benefits (2014) (0)
- Investigating alginate production and carbon utilization in Pseudomonas fluorescens SBW25 using mass spectrometry-based metabolic profiling (2012) (0)
- Azotobacter vinelandii Mannuronan C-5 epimerase AlgE4 A-module (2008) (0)
- Chemistry and biology: the structure and catalytic mechanism of the mannuronan C-5-epimerase AlgE4 from Azotobacter vinelandii (2008) (0)
- The genetics of cellulose biosynthesis in Acetobacter xylinum (1988) (0)
- Inactivation of the anti-sigma factor MucA causes major perturbations incarbon metabolism in Azotobacter vinelandii (2014) (0)
- IsolationandCharacterization of Marine Pigmented Bacteriafrom NorwegianCoastalWaters and Screening for Carotenoidswith UVA-BlueLight Absorbing Properties § (2010) (0)
- Solution structure of the R-module from AlgE4 (2006) (0)
- A synthetic version of the Pseudomonas putida xylS gene designed for optimal expression in Escherichia coli has a strongly reduced translation efficiency caused by mutations in the 5’ part of the coding sequence (2008) (0)
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