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Margareta J. Hellmann

Observed name: Hellmann, Margareta
ORCID: 0000-0002-3500-9465
Observed ORCID: 0000-0002-3500-9465
OpenAlex ID: A5087092883
Reassessment of chitosanase substrate specificities and classification
2017 · Tobias Weikert, Anna Niehues, et al. · Nature Communications · 78
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Transcriptomics reveal a mechanism of niche defense: two beneficial root endophytes deploy an antimicrobial GH18 ‐ CBM5 chitinase to protect their hosts
2024 · Ruben Eichfeld, Lisa K. Mahdi, et al. · New Phytologist · 33
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Heterogeneously deacetylated chitosans possess an unexpected regular pattern favoring acetylation at every third position
2024 · Margareta J. Hellmann, Dominique Gillet, et al. · Nature Communications · 26
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Three intertwining effects guide the mode of action of chitin deacetylase de- and N-acetylation reactions
2024 · Sandra Lindner, Martin Bonin, et al. · Carbohydrate Polymers · 18
Hydrolysis of chitin and chitosans by the human chitinolytic enzymes: chitotriosidase, acidic mammalian chitinase, and lysozyme
2025 · Margareta J. Hellmann, Gian Luca Marongiu, et al. · International Journal of Biological Macromolecules · 17
Chitins and chitosans–A tale of discovery and disguise, of attachment and attainment
2024 · Mounashree Student, Margareta J. Hellmann, et al. · Current Opinion in Plant Biology · 17
Fast insights into chitosan-cleaving enzymes by simultaneous analysis of polymers and oligomers through size exclusion chromatography
2024 · Margareta J. Hellmann, Bruno M. Moerschbacher, et al. · Scientific Reports · 15
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Transkingdom mechanism of MAMP generation by chitotriosidase feeds oligomeric chitin from fungal pathogens and allergens into TLR2-mediated innate immune sensing
2025 · Tzu-Hsuan Chang, Yamel Cardona Gloria, et al. · Frontiers in Immunology · 14
Domain gain or loss in a fungal chitinase enables specialization towards antagonism or immune suppression
2026 · Ruben Eichfeld, Asmamaw B. Endeshaw, et al. · Nature Communications · 8
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Chitosan production methods influence receptor-mediated immune responses but not target-mediated antimicrobial bioactivities
2025 · Margareta J. Hellmann, Katharina Eickelpasch, et al. · Carbohydrate Polymers · 6
Degree of acetylation of chitosans determined by size exclusion chromatography coupled to UV and refractive index detection
2025 · Stefan Cord-Landwehr, Margareta J. Hellmann, et al. · Carbohydrate Polymers · 6
Customized chitooligosaccharide production—controlling their length via engineering of rhizobial chitin synthases and the choice of expression system
2022 · Rita Weyer, Margareta J. Hellmann, et al. · Frontiers in Bioengineering and Biotechnology · 6
Chitinase-3-like protein 1 decodes chitosan acetylation patterns into toll-like receptor 2 signaling through heparan sulfate
2026 · Alexandra Großdorf, Sina Nabil, et al. · bioRxiv (Cold Spring Harbor Laboratory) · 2
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Acetylation and accessibility of Cryptococcus neoformans cell wall chitosans influence the strength of host immune responses
2026 · Margareta J. Hellmann, Rajendra Upadhya, et al. · The Cell Surface · 2
LCP simulator: An easy-to-use web tool to simulate pattern analysis and enzymatic cleavage of binary linear copolymers
2025 · Margareta J. Hellmann, Bruno M. Moerschbacher, et al. · SoftwareX · 2
Chitin oligomers induce atypical NLRP3 inflammasome activation and innate immune training
2026 · Timmy Richardo, Margareta J. Hellmann, et al. · bioRxiv (Cold Spring Harbor Laboratory)
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Chitin deacetylase 3 of Cryptococcus neoformans produces chitosans with low degree and random pattern of acetylation
2026 · Evelyn Tchoub, Margareta J. Hellmann, et al. · International Journal of Biological Macromolecules
Pattern in HTDA chitosans - Supplementary Figs. source data
2024 · Hellmann, Margareta · Universitäts- und Landesbibliothek Münster
Pattern in HTDA chitosans - Figs. 1-5 source data
2024 · Hellmann, Margareta · Universitäts- und Landesbibliothek Münster
Works count: 21
Citation count: 250
H-index: 8
I10-index: 8
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