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

ACS omega

Stanisci A, Tøndervik A, Gaardløs M, Lervik A, Skjåk-Bræk G, Sletta H, Aachmann FL.
PMID: 32149266
ACS Omega. 2020 Feb 24;5(8):4352-4361. doi: 10.1021/acsomega.9b04490. eCollection 2020 Mar 03.

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 polymer level, C-5 epimerases convert M residues to G...

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Stanisci A, Tøndervik A, Gaardløs M, et al. Identification of a Pivotal Residue for Determining the Block Structure-Forming Properties of Alginate C-5 Epimerases. ACS Omega. 2020;5(8):4352-4361doi: 10.1021/acsomega.9b04490.
Stanisci, A., Tøndervik, A., Gaardløs, M., Lervik, A., Skjåk-Bræk, G., Sletta, H., & Aachmann, F. L. (2020). Identification of a Pivotal Residue for Determining the Block Structure-Forming Properties of Alginate C-5 Epimerases. ACS omega, 5(8), 4352-4361. https://doi.org/10.1021/acsomega.9b04490
Stanisci, Annalucia, et al. "Identification of a Pivotal Residue for Determining the Block Structure-Forming Properties of Alginate C-5 Epimerases." ACS omega vol. 5,8 (2020): 4352-4361. doi: https://doi.org/10.1021/acsomega.9b04490
Stanisci A, Tøndervik A, Gaardløs M, Lervik A, Skjåk-Bræk G, Sletta H, Aachmann FL. Identification of a Pivotal Residue for Determining the Block Structure-Forming Properties of Alginate C-5 Epimerases. ACS Omega. 2020 Feb 24;5(8):4352-4361. doi: 10.1021/acsomega.9b04490. eCollection 2020 Mar 03. PMID: 32149266; PMCID: PMC7057702.
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Poly-L-Lysine Induces Fibrosis on Alginate Microcapsules via the Induction of Cytokines.

Cell transplantation

Strand BL, Ryan L, Veld PI, Kulseng B, Rokstad AM, Skjåk-Bræk G, Espevik T.
PMID: 28866941
Cell Transplant. 2001 Apr;10(3):263-275. doi: 10.3727/000000001783986800.

Alginate - poly-l-lysine (PLL) microcapsules can be used for transplantation of insulin-producing cells for treatment of type I diabetes. In this work we wanted to study the inflammatory reactions against implanted microcapsules due to PLL. We have seen that...

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Strand BL, Ryan L, Veld PI, et al. Poly-L-Lysine Induces Fibrosis on Alginate Microcapsules via the Induction of Cytokines. Cell Transplant. 2001;10(3):263-275doi: 10.3727/000000001783986800.
Strand, B. L., Ryan, L., Veld, P. I., Kulseng, B., Rokstad, A. M., Skjåk-Bræk, G., & Espevik, T. (2001). Poly-L-Lysine Induces Fibrosis on Alginate Microcapsules via the Induction of Cytokines. Cell transplantation, 10(3), 263-275. https://doi.org/10.3727/000000001783986800
Strand, Berit L, et al. "Poly-L-Lysine Induces Fibrosis on Alginate Microcapsules via the Induction of Cytokines." Cell transplantation vol. 10,3 (2001): 263-275. doi: https://doi.org/10.3727/000000001783986800
Strand BL, Ryan L, Veld PI, Kulseng B, Rokstad AM, Skjåk-Bræk G, Espevik T. Poly-L-Lysine Induces Fibrosis on Alginate Microcapsules via the Induction of Cytokines. Cell Transplant. 2001 Apr;10(3):263-275. doi: 10.3727/000000001783986800. PMID: 28866941.
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Polymer sequencing by molecular machines: a framework for predicting the resolving power of a sliding contact force spectroscopy sequencing method.

Nanoscale

Dunlop A, Bowman K, Aarstad O, Skjåk-Bræk G, Stokke BT, Round AN.
PMID: 28967943
Nanoscale. 2017 Oct 12;9(39):15089-15097. doi: 10.1039/c7nr03358c.

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 exploits a sliding contact made between a nanopore threaded...

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Dunlop A, Bowman K, Aarstad O, et al. Polymer sequencing by molecular machines: a framework for predicting the resolving power of a sliding contact force spectroscopy sequencing method. Nanoscale. 2017;9(39):15089-15097doi: 10.1039/c7nr03358c.
Dunlop, A., Bowman, K., Aarstad, O., Skjåk-Bræk, G., Stokke, B. T., & Round, A. N. (2017). Polymer sequencing by molecular machines: a framework for predicting the resolving power of a sliding contact force spectroscopy sequencing method. Nanoscale, 9(39), 15089-15097. https://doi.org/10.1039/c7nr03358c
Dunlop, Alex, et al. "Polymer sequencing by molecular machines: a framework for predicting the resolving power of a sliding contact force spectroscopy sequencing method." Nanoscale vol. 9,39 (2017): 15089-15097. doi: https://doi.org/10.1039/c7nr03358c
Dunlop A, Bowman K, Aarstad O, Skjåk-Bræk G, Stokke BT, Round AN. Polymer sequencing by molecular machines: a framework for predicting the resolving power of a sliding contact force spectroscopy sequencing method. Nanoscale. 2017 Oct 12;9(39):15089-15097. doi: 10.1039/c7nr03358c. PMID: 28967943.
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Structural Characterization of Fucoidan from .

ACS applied bio materials

Kopplin G, Rokstad AM, Mélida H, Bulone V, Skjåk-Bræk G, Aachmann FL.
PMID: 34996289
ACS Appl Bio Mater. 2018 Dec 17;1(6):1880-1892. doi: 10.1021/acsabm.8b00436. Epub 2018 Dec 03.

The structure of fucoidan isolated from

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Kopplin G, Rokstad AM, Mélida H, et al. Structural Characterization of Fucoidan from . ACS Appl Bio Mater. 2018;1(6):1880-1892doi: 10.1021/acsabm.8b00436.
Kopplin, G., Rokstad, A. M., Mélida, H., Bulone, V., Skjåk-Bræk, G., & Aachmann, F. L. (2018). Structural Characterization of Fucoidan from . ACS applied bio materials, 1(6), 1880-1892. https://doi.org/10.1021/acsabm.8b00436
Kopplin, Georg, et al. "Structural Characterization of Fucoidan from ." ACS applied bio materials vol. 1,6 (2018): 1880-1892. doi: https://doi.org/10.1021/acsabm.8b00436
Kopplin G, Rokstad AM, Mélida H, Bulone V, Skjåk-Bræk G, Aachmann FL. Structural Characterization of Fucoidan from . ACS Appl Bio Mater. 2018 Dec 17;1(6):1880-1892. doi: 10.1021/acsabm.8b00436. Epub 2018 Dec 03. PMID: 34996289.
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Sliding Contact Dynamic Force Spectroscopy Method for Interrogating Slowly Forming Polymer Cross-Links.

Langmuir : the ACS journal of surfaces and colloids

Bowman KA, Aarstad OA, Stokke BT, Skjåk-Bræk G, Round AN.
PMID: 27813412
Langmuir. 2016 Dec 06;32(48):12814-12822. doi: 10.1021/acs.langmuir.6b03414. Epub 2016 Nov 16.

Dynamic single-molecule force spectroscopy (SMFS), conducted most commonly using AFM, has become a widespread and valuable tool for understanding the kinetics and thermodynamics of fundamental molecular processes such as ligand-receptor interactions and protein unfolding. Where slowly forming bonds are...

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Bowman KA, Aarstad OA, Stokke BT, et al. Sliding Contact Dynamic Force Spectroscopy Method for Interrogating Slowly Forming Polymer Cross-Links. Langmuir. 2016;32(48):12814-12822doi: 10.1021/acs.langmuir.6b03414.
Bowman, K. A., Aarstad, O. A., Stokke, B. T., Skjåk-Bræk, G., & Round, A. N. (2016). Sliding Contact Dynamic Force Spectroscopy Method for Interrogating Slowly Forming Polymer Cross-Links. Langmuir : the ACS journal of surfaces and colloids, 32(48), 12814-12822. https://doi.org/10.1021/acs.langmuir.6b03414
Bowman, Kate A, et al. "Sliding Contact Dynamic Force Spectroscopy Method for Interrogating Slowly Forming Polymer Cross-Links." Langmuir : the ACS journal of surfaces and colloids vol. 32,48 (2016): 12814-12822. doi: https://doi.org/10.1021/acs.langmuir.6b03414
Bowman KA, Aarstad OA, Stokke BT, Skjåk-Bræk G, Round AN. Sliding Contact Dynamic Force Spectroscopy Method for Interrogating Slowly Forming Polymer Cross-Links. Langmuir. 2016 Dec 06;32(48):12814-12822. doi: 10.1021/acs.langmuir.6b03414. Epub 2016 Nov 16. PMID: 27813412.
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Alginate as immobilization material: III. Diffusional properties.

Biotechnology and bioengineering

Martinsen A, Storrø I, Skjårk-Braek G.
PMID: 18600930
Biotechnol Bioeng. 1992 Jan 20;39(2):186-94. doi: 10.1002/bit.260390210.

The rate of diffusion of serum albumin (MW 6.9 x 10(4) D) out of beads of calcium alginate gels depends upon the concentration and uronic acid composition of the alginate (ManA/GulA ratio), the conditions under which the beads are...

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Martinsen A, Storrø I, Skjårk-Braek G. Alginate as immobilization material: III. Diffusional properties. Biotechnol Bioeng. 1992;39(2):186-94doi: 10.1002/bit.260390210.
Martinsen, A., Storrø, I., & Skjårk-Braek, G. (1992). Alginate as immobilization material: III. Diffusional properties. Biotechnology and bioengineering, 39(2), 186-94. https://doi.org/10.1002/bit.260390210
Martinsen, A, et al. "Alginate as immobilization material: III. Diffusional properties." Biotechnology and bioengineering vol. 39,2 (1992): 186-94. doi: https://doi.org/10.1002/bit.260390210
Martinsen A, Storrø I, Skjårk-Braek G. Alginate as immobilization material: III. Diffusional properties. Biotechnol Bioeng. 1992 Jan 20;39(2):186-94. doi: 10.1002/bit.260390210. PMID: 18600930.
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Alginate as immobilization material: I. Correlation between chemical and physical properties of alginate gel beads.

Biotechnology and bioengineering

Martinsen A, Skjåk-Braek G, Smidsrød O.
PMID: 18587846
Biotechnol Bioeng. 1989 Jan 05;33(1):79-89. doi: 10.1002/bit.260330111.

Calcium alginate gel beads were prepared from a range of well characterized alginates. The physical properties of beads depended strongly on the composition, sequential structure, and molecular size of the polymers. Beads with the highest mechanical strength, lowest shrinkage,...

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Martinsen A, Skjåk-Braek G, Smidsrød O. Alginate as immobilization material: I. Correlation between chemical and physical properties of alginate gel beads. Biotechnol Bioeng. 1989;33(1):79-89doi: 10.1002/bit.260330111.
Martinsen, A., Skjåk-Braek, G., & Smidsrød, O. (1989). Alginate as immobilization material: I. Correlation between chemical and physical properties of alginate gel beads. Biotechnology and bioengineering, 33(1), 79-89. https://doi.org/10.1002/bit.260330111
Martinsen, A, et al. "Alginate as immobilization material: I. Correlation between chemical and physical properties of alginate gel beads." Biotechnology and bioengineering vol. 33,1 (1989): 79-89. doi: https://doi.org/10.1002/bit.260330111
Martinsen A, Skjåk-Braek G, Smidsrød O. Alginate as immobilization material: I. Correlation between chemical and physical properties of alginate gel beads. Biotechnol Bioeng. 1989 Jan 05;33(1):79-89. doi: 10.1002/bit.260330111. PMID: 18587846.
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Influence of environmental conditions on the activity of the recombinant mannuronan C-5-epimerase AlgE2.

Enzyme and microbial technology

Ramstadab MV, Markussen S, Ellingsen TE, Skjåk-Braek G, Levine DW.
PMID: 11118599
Enzyme Microb Technol. 2001 Jan 02;28(1):57-69. doi: 10.1016/s0141-0229(00)00273-8.

The mannuronan C-5-epimerase AlgE2 is one of a family of Ca(2+)-dependent epimerases secreted by Azotobacter vinelandii. These enzymes catalyze the conversion of beta-D-mannuronic acid residues (M) to alpha-L-guluronic acid residues (G) in alginate. AlgE2 had a pH optimum between...

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Ramstadab MV, Markussen S, Ellingsen TE, et al. Influence of environmental conditions on the activity of the recombinant mannuronan C-5-epimerase AlgE2. Enzyme Microb Technol. 2001;28(1):57-69doi: 10.1016/s0141-0229(00)00273-8.
Ramstadab, M. V., Markussen, S., Ellingsen, T. E., Skjåk-Braek, G., & Levine, D. W. (2001). Influence of environmental conditions on the activity of the recombinant mannuronan C-5-epimerase AlgE2. Enzyme and microbial technology, 28(1), 57-69. https://doi.org/10.1016/s0141-0229(00)00273-8
Ramstadab, et al. "Influence of environmental conditions on the activity of the recombinant mannuronan C-5-epimerase AlgE2." Enzyme and microbial technology vol. 28,1 (2001): 57-69. doi: https://doi.org/10.1016/s0141-0229(00)00273-8
Ramstadab MV, Markussen S, Ellingsen TE, Skjåk-Braek G, Levine DW. Influence of environmental conditions on the activity of the recombinant mannuronan C-5-epimerase AlgE2. Enzyme Microb Technol. 2001 Jan 02;28(1):57-69. doi: 10.1016/s0141-0229(00)00273-8. PMID: 11118599.
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Sulfated hydrogel matrices direct mitogenicity and maintenance of chondrocyte phenotype through activation of FGF signaling.

Advanced functional materials

Öztürk E, Arlov Ø, Aksel S, Li L, Ornitz DM, Skjåk-Bræk G, Zenobi-Wong M.
PMID: 28919847
Adv Funct Mater. 2016 Jun 07;26(21):3649-3662. doi: 10.1002/adfm.201600092. Epub 2016 Mar 23.

Deciphering the roles of chemical and physical features of the extracellular matrix (ECM) is vital for developing biomimetic materials with desired cellular responses in regenerative medicine. Here, we demonstrate that sulfation of biopolymers, mimicking the proteoglycans in native tissues,...

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Öztürk E, Arlov Ø, Aksel S, et al. Sulfated hydrogel matrices direct mitogenicity and maintenance of chondrocyte phenotype through activation of FGF signaling. Adv Funct Mater. 2016;26(21):3649-3662doi: 10.1002/adfm.201600092.
Öztürk, E., Arlov, �. �., Aksel, S., Li, L., Ornitz, D. M., Skjåk-Bræk, G., & Zenobi-Wong, M. (2016). Sulfated hydrogel matrices direct mitogenicity and maintenance of chondrocyte phenotype through activation of FGF signaling. Advanced functional materials, 26(21), 3649-3662. https://doi.org/10.1002/adfm.201600092
Öztürk, Ece, et al. "Sulfated hydrogel matrices direct mitogenicity and maintenance of chondrocyte phenotype through activation of FGF signaling." Advanced functional materials vol. 26,21 (2016): 3649-3662. doi: https://doi.org/10.1002/adfm.201600092
Öztürk E, Arlov Ø, Aksel S, Li L, Ornitz DM, Skjåk-Bræk G, Zenobi-Wong M. Sulfated hydrogel matrices direct mitogenicity and maintenance of chondrocyte phenotype through activation of FGF signaling. Adv Funct Mater. 2016 Jun 07;26(21):3649-3662. doi: 10.1002/adfm.201600092. Epub 2016 Mar 23. PMID: 28919847; PMCID: PMC5597002.
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Alginate as immobilization material. II: Determination of polyphenol contaminants by fluorescence spectroscopy, and evaluation of methods for their removal.

Biotechnology and bioengineering

Skjåk-Braek G, Murano E, Paoletti S.
PMID: 18587847
Biotechnol Bioeng. 1989 Jan 05;33(1):90-4. doi: 10.1002/bit.260330112.

Alginates, both commercial and laboratory made, are strongly fluorescent due to small amounts of polyphenolic materials. These contaminants can be detected by fluorescence spectroscopy in concentrations lower than 1 ppm. This technique has been used to measure polyphenols in...

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Skjåk-Braek G, Murano E, Paoletti S. Alginate as immobilization material. II: Determination of polyphenol contaminants by fluorescence spectroscopy, and evaluation of methods for their removal. Biotechnol Bioeng. 1989;33(1):90-4doi: 10.1002/bit.260330112.
Skjåk-Braek, G., Murano, E., & Paoletti, S. (1989). Alginate as immobilization material. II: Determination of polyphenol contaminants by fluorescence spectroscopy, and evaluation of methods for their removal. Biotechnology and bioengineering, 33(1), 90-4. https://doi.org/10.1002/bit.260330112
Skjåk-Braek, G, et al. "Alginate as immobilization material. II: Determination of polyphenol contaminants by fluorescence spectroscopy, and evaluation of methods for their removal." Biotechnology and bioengineering vol. 33,1 (1989): 90-4. doi: https://doi.org/10.1002/bit.260330112
Skjåk-Braek G, Murano E, Paoletti S. Alginate as immobilization material. II: Determination of polyphenol contaminants by fluorescence spectroscopy, and evaluation of methods for their removal. Biotechnol Bioeng. 1989 Jan 05;33(1):90-4. doi: 10.1002/bit.260330112. PMID: 18587847.
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Structural Characterization of Fucoidan from .

ACS applied bio materials

Kopplin G, Rokstad AM, Mélida H, Bulone V, Skjåk-Bræk G, Aachmann FL.
PMID: 34996289
ACS Appl Bio Mater. 2018 Dec 17;1(6):1880-1892. doi: 10.1021/acsabm.8b00436. Epub 2018 Dec 03.

The structure of fucoidan isolated from

Cite
Kopplin G, Rokstad AM, Mélida H, et al. Structural Characterization of Fucoidan from . ACS Appl Bio Mater. 2018;1(6):1880-1892doi: 10.1021/acsabm.8b00436.
Kopplin, G., Rokstad, A. M., Mélida, H., Bulone, V., Skjåk-Bræk, G., & Aachmann, F. L. (2018). Structural Characterization of Fucoidan from . ACS applied bio materials, 1(6), 1880-1892. https://doi.org/10.1021/acsabm.8b00436
Kopplin, Georg, et al. "Structural Characterization of Fucoidan from ." ACS applied bio materials vol. 1,6 (2018): 1880-1892. doi: https://doi.org/10.1021/acsabm.8b00436
Kopplin G, Rokstad AM, Mélida H, Bulone V, Skjåk-Bræk G, Aachmann FL. Structural Characterization of Fucoidan from . ACS Appl Bio Mater. 2018 Dec 17;1(6):1880-1892. doi: 10.1021/acsabm.8b00436. Epub 2018 Dec 03. PMID: 34996289.
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Showing 1 to 11 of 11 entries