List of works by Gudmund Skjåk-Bræk

1H, 13C and 15N resonances of the AlgE62 subunit from Azotobacter vinelandii mannuronan C5-epimerase

scientific article published on 28 December 2010

1H, 15N, 13C resonance assignment of the AlgE6R1 subunit from the Azotobacter vinelandii mannuronan C5-epimerase

scientific article

A high field NMR study of the products ensuing from konjak glucomannan C(6)-oxidation followed by enzymatic C(5)-epimerization

scientific article

Alginate microbeads are complement compatible, in contrast to polycation containing microcapsules, as revealed in a human whole blood model

scientific article

Alginate microsphere compositions dictate different mechanisms of complement activation with consequences for cytokine release and leukocyte activation

scientific article published on 15 March 2016

Alginate sequencing: an analysis of block distribution in alginates using specific alginate degrading enzymes

scientific article

Alginates induce differentiation and expression of CXCR7 and CXCL12/SDF-1 in human keratinocytes--the role of calcium.

scientific article

Analysis of G-block distributions and their impact on gel properties of in vitro epimerized mannuronan

scientific article published on 3 September 2013

Ancient acquisition of "alginate utilization loci" by human gut microbiota.

scientific article published on 23 May 2018

Application of high-performance anion-exchange chromatography with pulsed amperometric detection and statistical analysis to study oligosaccharide distributions--a complementary method to investigate the structure and some properties of alginates

scientific article published on 18 August 2005

Binding and leakage of barium in alginate microbeads.

scientific article published on 14 June 2012

Biochemical analysis of the processive mechanism for epimerization of alginate by mannuronan C-5 epimerase AlgE4.

scientific article published on July 2004

Biosynthesis and Function of Long Guluronic Acid-Blocks in Alginate Produced by Azotobacter vinelandii

scientific article published on 19 March 2019

C(6)-oxidation followed by C(5)-epimerization of guar gum studied by high field NMR.

scientific article published in March 2004

C6-oxidation and c5-epimerization of locust bean galactomannan studied by high field NMR and circular dichroism

scientific article published in January 2006

Cell-compatible covalently reinforced beads obtained from a chemoenzymatically engineered alginate

scientific article published on 5 June 2006

Characterization of the hydrolysis mechanism of polyalternating alginate in weak acid and assignment of the resulting MG-oligosaccharides by NMR spectroscopy and ESI-mass spectrometry.

scientific article

Comment on "conformational changes and aggregation of alginic acid as determined by fluorescence correlation spectroscopy"

scientific article published on 29 August 2007

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

scientific article published on August 2004

Current and Future Perspectives on Alginate Encapsulated Pancreatic Islet

scientific article published on 2 February 2017

Determination of average degree of polymerisation and distribution of oligosaccharides in a partially acid-hydrolysed homopolysaccharide: a comparison of four experimental methods applied to mannuronan

scientific article published on 01 February 2004

Determination of the diadic composition of alginate by means of circular dichroism: a fast and accurate improved method

scientific article published on 01 May 2003

Effect of Ca2+, Ba2+, and Sr2+ on alginate microbeads

scientific article published on 01 May 2006

Effect of elongation of alternating sequences on swelling behavior and large deformation properties of natural alginate gels.

scientific article published in October 2009

Encapsulation of human islets in novel inhomogeneous alginate-ca2+/ba2+ microbeads: in vitro and in vivo function

scientific article published on January 2008

Energy Landscape of Alginate-Epimerase Interactions Assessed by Optical Tweezers and Atomic Force Microscopy

scientific article published on 23 October 2015

Evidence for egg-box-compatible interactions in calcium-alginate gels from fiber X-ray diffraction

scientific article published on 27 May 2007

Exploiting Mannuronan C-5 Epimerases in Commercial Alginate Production

scientific article published on 18 November 2020

Functional Exploration of the Polysaccharide Lyase Family PL6

scientific article

Galactose-substituted alginate 2: conformational aspects

scientific article published in January 2004

Galactose-substituted alginate: preliminary characterization and study of gelling properties.

scientific article published on May 2003

Gelling concept combining chitosan and alginate-proof of principle

scientific article published on 11 July 2013

Heparin-like properties of sulfated alginates with defined sequences and sulfation degrees

scientific article published on 20 June 2014

Identification of a Pivotal Residue for Determining the Block Structure-Forming Properties of Alginate C-5 Epimerases

scientific article published on 24 February 2020

Improvement of the biocompatibility of alginate/poly-L-lysine/alginate microcapsules by the use of epimerized alginate as a coating

scientific article

Inhibition of pepsin activity by alginates in vitro and the effect of epimerization

scientific article

Interferometric characterization of swelling of covalently crosslinked alginate gel and changes associated with polymer impregnation

article published in 2010

Involvement of toll-like receptor (TLR) 2 and TLR4 in cell activation by mannuronic acid polymers

scientific article published on 27 June 2002

Ionic gel formation of a (pseudo)alginate characterised by an alternating MG sequence produced by epimerising mannuronan with AlgE4

Isolation of mutant alginate lyases with cleavage specificity for di-guluronic acid linkages.

scientific article

Lyase-catalyzed degradation of alginate in the gelled state: effect of gelling ions and lyase specificity.

scientific article published on 3 April 2014

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

scientific article

Mapping enzymatic functionalities of mannuronan C-5 epimerases and their modular units by dynamic force spectroscopy

scientific article published on 24 October 2005

Microcapsules made by enzymatically tailored alginate

scientific article

Microencapsulation of cells producing therapeutic proteins: optimizing cell growth and secretion.

scientific article

Mn-alginate gels as a novel system for controlled release of Mn2+ in manganese-enhanced MRI

scientific article published on 01 March 2012

Mode of action and subsite studies of the guluronan block-forming mannuronan C-5 epimerases AlgE1 and AlgE6

scientific article

Mode of action of recombinant Azotobacter vinelandii mannuronan C-5 epimerases AlgE2 and AlgE4.

scientific article published in February 2002

Multiscale requirements for bioencapsulation in medicine and biotechnology

scientific article published on 07 February 2009

NMR assignments of 1H, 13C and 15N resonances of the C-terminal subunit from Azotobacter vinelandii mannuronan C5-epimerase 6 (AlgE6R3).

scientific article

NMR structure of a lytic polysaccharide monooxygenase provides insight into copper binding, protein dynamics, and substrate interactions

scientific article

New hypothesis on the role of alternating sequences in calcium-alginate gels.

scientific article

OligoG CF-5/20 normalizes cystic fibrosis mucus by chelating calcium

scientific article published on 01 June 2017

On the initial binding of alginate by calcium ions. The tilted egg-box hypothesis

scientific article published on 12 June 2013

Overall size of mannuronan C5-Epimerases influences their ability to epimerize modified alginates and alginate gels.

scientific article published on 7 October 2017

Polymer sequencing by molecular machines: a framework for predicting the resolving power of a sliding contact force spectroscopy sequencing method.

scientific article

Preparation of high purity monodisperse oligosaccharides derived from mannuronan by size-exclusion chromatography followed by semi-preparative high-performance anion-exchange chromatography with pulsed amperometric detection

scientific article published on 30 October 2008

RGD-peptide modified alginate by a chemoenzymatic strategy for tissue engineering applications.

scientific article published on 28 May 2014

Single molecule investigation of the onset and minimum size of the calcium-mediated junction zone in alginate

scientific article published on 11 April 2016

Single-molecular pair unbinding studies of Mannuronan C-5 epimerase AlgE4 and its polymer substrate.

scientific article published in July 2004

Sliding Contact Dynamic Force Spectroscopy Method for Interrogating Slowly Forming Polymer Cross-Links.

scientific article published on 4 November 2016

Structural and functional characterization of the R-modules in alginate C-5 epimerases AlgE4 and AlgE6 from Azotobacter vinelandii

scientific article published on 29 September 2014

Sulfated Alginates as Heparin Analogues: A Review of Chemical and Functional Properties.

scientific article published on 11 May 2017

Sulfated alginate microspheres associate with factor H and dampen the inflammatory cytokine response

scientific article published on 10 June 2016

Sulfated hydrogel matrices direct mitogenicity and maintenance of chondrocyte phenotype through activation of FGF signaling.

scientific article published on 23 March 2016

Survival of human islets in microbeads containing high guluronic acid alginate crosslinked with Ca2+ and Ba2+.

scientific article published on November 2012

Synergistic effects in semidilute mixed solutions of alginate and lactose-modified chitosan (chitlac)

scientific article published on 15 February 2007

Tailor-made alginate bearing galactose moieties on mannuronic residues: selective modification achieved by a chemoenzymatic strategy

scientific article

The Impact of Chain Length and Flexibility in the Interaction between Sulfated Alginates and HGF and FGF-2.

scientific article published on 25 September 2015

The Pseudomonas fluorescens AlgG protein, but not its mannuronan C-5-epimerase activity, is needed for alginate polymer formation.

scientific article

The Pseudomonas syringae genome encodes a combined mannuronan C-5-epimerase and O-acetylhydrolase, which strongly enhances the predicted gel-forming properties of alginates.

scientific article

The induction of cytokines by polycation containing microspheres by a complement dependent mechanism

scientific article

The role of capsule composition and biologic responses in the function of transplanted microencapsulated islets of Langerhans

scientific article

Time-resolved 1H and 13C NMR spectroscopy for detailed analyses of the Azotobacter vinelandii mannuronan C-5 epimerase reaction

scientific article published in March 2002

Use of protein trans-splicing to produce active and segmentally (2)H, (15)N labeled mannuronan C5-epimerase AlgE4

scientific article

Visualization of alginate-poly-L-lysine-alginate microcapsules by confocal laser scanning microscopy

scientific article

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