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Your search keyword '"Jansson, Anita M"' showing total 22 results
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2. Spectroscopic and protein chemical analyses demonstrate the presence of C-mannosylated tryptophan in intact human RNase 2 and its isoforms

Author

Loffler, Andreas, Doucey, Marie-Agnes, Jansson, Anita M., Muller, Dieter R., Beer, Tonny de, Hess, Daniel, Meldal, Morten, Richter, Wilhelm J., Vliegenthart, Johannes F.G., and Hofsteenge, Jan

Subjects
Biochemistry -- Case studies, Tryptophan -- Research, Ribonuclease -- Research, Biological sciences, Chemistry
Abstract

Mass spectrometric and nuclear magnetic resonance spectroscopic studies were performed on human urinary RNase 2 and its peptides at a pH of less than five. In addition, the effect of acidic conditions on the biosynthesis of the glycopeptide F(O3-Man-)TWA was examined. The results indicated that the C-mannosylation of Trp-7 in RNase 2 was not caused by the acidic conditions used in the isolation and purification of the enzyme and its peptides. In addition, RNase from erythrocites were also found to contain (C2-Man-)Trp.

Published
1996

3. Amylopectin Chain Length Dynamics and Activity Signatures of Key Carbon Metabolic Enzymes Highlight Early Maturation as Culprit for Yield Reduction of Barley Endosperm Starch after Heat Stress

Author

Cuesta-Seijo, Jose Antonio, primary, De Porcellinis, Alice Jara, additional, Valente, Angela H�rdum, additional, Striebeck, Alexander, additional, Voss, Cynthia, additional, Marri, Lucia, additional, Hansson, Andreas, additional, Jansson, Anita M, additional, Dinesen, Malene Hessellund, additional, Fangel, Jonatan Ulrik, additional, Harholt, Jesper, additional, Popovic, Milan, additional, Thieme, Mercedes, additional, Hochmuth, Anton, additional, Zeeman, Samuel C, additional, Mikkelsen, Teis N�rgaard, additional, J�rgensen, Rikke Bagger, additional, Roitsch, Thomas Georg, additional, M�ller, Birger Lindberg, additional, and Braumann, Ilka, additional

Published
2019
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16. Amylopectin Chain Length Dynamics and Activity Signatures of Key Carbon Metabolic Enzymes Highlight Early Maturation as Culprit for Yield Reduction of Barley Endosperm Starch after Heat Stress

Author

Cuesta-Seijo, Jose Antonio, De Porcellinis, Alice Jara, Valente, Angela Hørdum, Striebeck, Alexander, Voss, Cynthia, Marri, Lucia, Hansson, Andreas, Jansson, Anita M., Malene, Hessellund Dinesen, Fangel, Jonatan Ulrik, Harholt, Jesper, Popovic, Milan, Thieme, Mercedes, Hochmuth, Anton, Zeeman, Samuel C., Mikkelsen, Teis Nørgaard, Jørgensen, Rikke Bagger, Roitsch, Thomas Georg, Lindberg Møller, Birger, and Braumann, Ilka

Subjects
2. Zero hunger, Grain filling, 13. Climate action, Barley, Amylopectin, food and beverages, Starch, Cell wall invertase, Heat stress
Abstract

Abiotic environmental stresses have a negative impact on the yield and quality of crops. Understanding these stresses is an essential enabler for mitigating breeding strategies and it becomes more important as the frequency of extreme weather conditions increases due to climate change. This study analyses the response of barley (Hordeum vulgare L.) to a heat wave during grain filling in three distinct stages: the heat wave itself, the return to a normal temperature regime, and the process of maturation and desiccation. The properties and structure of the starch produced were followed throughout the maturational stages. Furthermore, the key enzymes involved in the carbohydrate supply to the grain were monitored. We observed differences in starch structure with well-separated effects because of heat stress and during senescence. Heat stress produced marked effects on sucrolytic enzymes in source and sink tissues. Early cessation of plant development as an indirect consequence of the heat wave was identified as the major contributor to final yield loss from the stress, highlighting the importance for functional stay-green traits for the development of heat-resistant cereals., Plant & Cell Physiology, 60 (12), ISSN:0032-0781, ISSN:1471-9053

22. Palladium on carbon encapsulated in POEPOP(1500): a resin-supported catalyst for hydrogenation reactions.

Author

Jansson AM, Grøtli M, Halkes KM, and Meldal M

Abstract

[reaction: see text] A new a versatile catalyst for hydrogenation reactions wherein palladium on carbon is encapsulated in POEPOP(1500)-resin is described. This polymer-supported catalyst has been successfully used in solution phase hydrogenation of a double and a triple bond as well as hydrogenolysis of a benzyl-protecting group. While the activity of the new catalyst is marginally lower than standard 10% Pd/C, it has the advantage of being reused several times without significant loss of reactivity.

Published
2002
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