Gudmund Skjak-Braek
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Explore the profile of Gudmund Skjak-Braek including associated specialties, affiliations and a list of published articles.
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79
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1308
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Recent Articles
1.
Gravdahl M, Aarstad O, Petersen A, Karlsen S, Donati I, Czjzek M, et al.
Carbohydr Polym
. 2024 Aug;
343:122487.
PMID: 39174105
Oligosaccharides from uronic acid-containing polysaccharides can be produced either by chemical or enzymatic degradation. The benefit of using enzymes, called lyases, is their high specificity for various glycosidic linkages. Lyases...
2.
Pritchard M, Powell L, Adams J, Menzies G, Khan S, Tondervik A, et al.
Biomolecules
. 2023 Sep;
13(9).
PMID: 37759766
Low molecular weight alginate oligosaccharides have been shown to exhibit anti-microbial activity against a range of multi-drug resistant bacteria, including . Previous studies suggested that the disruption of calcium (Ca)-DNA...
3.
Tondervik A, Aune R, Degelmann A, Piontek M, Ertesvag H, Skjak-Braek G, et al.
Front Plant Sci
. 2022 Jun;
13:837891.
PMID: 35734252
Alginates are linear polysaccharides produced by brown algae and some bacteria and are composed of β-D-mannuronic acid (M) and α-L-guluronic acid (G). Alginate has numerous present and potential future applications...
4.
Kopplin G, Rokstad A, Melida H, Bulone V, Skjak-Braek G, Aachmann F
ACS Appl Bio Mater
. 2022 Jan;
1(6):1880-1892.
PMID: 34996289
The structure of fucoidan isolated from was elucidated and chemically tailored in order to obtain a clear structure-function relationship on bioactive properties with a minimal amount of variations among the...
5.
Tondervik A, Aarstad O, Aune R, Maleki S, Rye P, Dessen A, et al.
Mar Drugs
. 2020 Nov;
18(11).
PMID: 33218095
Alginates are one of the major polysaccharide constituents of marine brown algae in commercial manufacturing. However, the content and composition of alginates differ according to the distinct parts of these...
6.
Stanisci A, Tondervik A, Gaardlos M, Lervik A, Skjak-Braek G, Sletta H, et al.
ACS Omega
. 2020 Mar;
5(8):4352-4361.
PMID: 32149266
Alginate is a linear copolymer composed of 1→4 linked β-d-mannuronic acid (M) and its epimer α-l-guluronic acid (G). The polysaccharide is first produced as homopolymeric mannuronan and subsequently, at the...
7.
Aarstad O, Stanisci A, Saetrom G, Tondervik A, Sletta H, Aachmann F, et al.
Biomacromolecules
. 2019 Mar;
20(4):1613-1622.
PMID: 30844259
With the present accessibility of algal raw material, microbial alginates as a source for strong gelling material are evaluated as an alternative for advanced applications. Recently, we have shown that...
8.
Mathieu S, Touvrey-Loiodice M, Poulet L, Drouillard S, Vincentelli R, Henrissat B, et al.
Sci Rep
. 2018 May;
8(1):8075.
PMID: 29795267
In bacteria from the phylum Bacteroidetes, the genes coding for enzymes involved in polysaccharide degradation are often colocalized and coregulated in so-called "polysaccharide utilization loci" (PULs). PULs dedicated to the...
9.
Stanisci A, Aarstad O, Tondervik A, Sletta H, Dypas L, Skjak-Braek G, et al.
Carbohydr Polym
. 2017 Nov;
180:256-263.
PMID: 29103504
A family of seven mannuronan C5-epimerases (AlgE1-AlgE7) produced by Azotobacter vinelandii is able to convert β-d-mannuronate (M) to its epimer α-l-guluronate (G) in alginates. Even sharing high sequence homology at...
10.
Dunlop A, Bowman K, Aarstad O, Skjak-Braek G, Stokke B, Round A
Nanoscale
. 2017 Oct;
9(39):15089-15097.
PMID: 28967943
We evaluate an AFM-based single molecule force spectroscopy method for mapping sequences in otherwise difficult to sequence heteropolymers, including glycosylated proteins and glycans. The sliding contact force spectroscopy (SCFS) method...