Results 111 to 120 of about 11,555 (255)

Cryo‐EM structure of GH43 β‐Xylosidase from Enterobacter cloacae provides insights into substrate specificity and the role of an auxiliary domain in enzymatic activity

The FEBS Journal, EarlyView.
Xylan, the second most abundant plant cell wall polysaccharide, is degraded by β‐xylanases and β‐xylosidases. Here, we present the 2.65 Å cryo‐EM structure of Enterobacter cloacae β‐xylosidase (EcXyl43, GH43) and the 2.4 Å X‐ray structure of its inactive F507A mutant.
Lorenzo Briganti, Andre Schutzer Godoy, Caio Cesar Mello Capetti, Rafaela Sachetto Fernandes, Vanessa O. A. Pellegrini, Ornella M. Ontañon, Eleonora Campos, Rodrigo V. Portugal, Igor Polikarpov   +8 more
wiley   +1 more source

Boosting of enzymatic softwood saccharification by fungal GH5 and GH26 endomannanases

Biotechnology for Biofuels, 2018
Background Softwood is a promising feedstock for lignocellulosic biorefineries, but as it contains galactoglucomannan efficient mannan-degrading enzymes are required to unlock its full potential.
Pernille von Freiesleben, Nikolaj Spodsberg, Anne Stenbæk, Henrik Stålbrand, Kristian B. R. M. Krogh, Anne S. Meyer   +5 more
doaj   +1 more source

The Keystone‐Pathogen Hypothesis Updated: The Role of Porphyromonas gingivalis in Periodontitis

Journal of Periodontal Research, EarlyView.
Porphyromonas gingivalis orchestrates a coordinated manipulation of immune and inflammatory responses in periodontal tissues which leads to the generation of a dysbiotic, subgingival biofilm community, and progression of periodontitis. The type 9 secretion system, lipid A modification, and the formation of outer membrane vesicles are important ...
Mike A. Curtis, James A. Garnett, Richard P. Darveau   +2 more
wiley   +1 more source

Optimization of extracellular mannanase production from Penicillium oxalicum KUB-SN2-1 and application for hydrolysis property [PDF]

, 2013
Effects of media composition, and physical properties on the production of crude mannanase by Penicillium oxalicumKUB-SN2-1 were investigated. P.oxalicum KUB-SN2-1 was propagated in a shaking incubator at 30°C with rotation speed of200 rpm of 7 days. The
Apinya Pokaseam, Katesarin Buengsrisawat, Kla Jantawon, Pichamon Dangpram, Sudathip Titapoka Chantorn, Sunee Nitisinprasert, Tasanee Sombat   +6 more
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Ecological and genomic variation in ectomycorrhizal fungal exploration types

New Phytologist, EarlyView.
Summary Ectomycorrhizal fungi (EMF) produce mycelia with variable extension and complexity, which can be classified according to soil ‘exploration types’ (ETs). ETs have received attention as one of the few mycorrhizal trait frameworks, but without an empirical classification of ET functional diversity and environmental preferences, understanding and ...
Thomas M. Mansfield, Artin Zarsav, Filipa Cox, Laura M. Suz, Martin I. Bidartondo, Sietse van der Linde, Nadia Barsoum, Colin Averill, Alan Kuo, Leho Tedersoo, Pasi Rautio, Arthur Gessler, Bruno De Vos, Luc Croisé, Henning Meesenburg, Markus Wagner, Frank Jacob, Paweł Lech, Anna Kowalska, Martin Greve, Genoveva Popova, Beat Frey, Marcus Schaub, Marco Ferretti, Peter Waldner, Vicent Calatayud, Roberto Canullo, Giancarlo Papitto, Aleksander Marinšek, Lars Vesterdal, Morten Ingerslev, Helge Meissner, Volkmar Timmermann, Nadine Eickenscheidt, Andreas Schmitz, Francis M. Martin, Joseph Spatafora, Peter G. Kennedy, Annegret Kohler, Jonathan M. Plett, Ian C. Anderson, Sara Branco, Igor V. Grigoriev, Chris J. Pires, Sarah A. Unruh, Lawrence W. Zettler, Otto Miettinen, Ilya Viner, Tom W. May, Teresa Lebel, David E. A. Catcheside, Pamela S. Catcheside, Helen P. Vonow, Leigh A. Burgoyne, Julia Haska, Mark A. Anthony   +55 more
wiley   +1 more source

Production of xylooligosaccharides from enzymatic hydrolysis of xylan by white-rot fungi Pleurotus - DOI: 10.4025/actascitechnol.v32i1.7648

Acta Scientiarum: Technology, 2009
Hemicellulose consists of non-cellulosic polysaccharides, with xylans and mannans as their main examples. In nature, xylan can be first degraded to xylooligosaccharides and finally to xylose by certain microorganisms.
Cristiano Ragagnin de Menezes, Ísis Serrano Silva, Érika Cristina Pavarina, Andréia Fonseca de Faria, Elisângela Franciscon, Lucia Regina Durrant   +5 more
doaj   +1 more source

GcrR in Streptococcus mutans Inhibits the Morphological Transition of Candida albicans Through Ras1–cAMP/PKA Pathway in the Cross‐Kingdom Biofilms

Molecular Oral Microbiology, EarlyView.
ABSTRACT The dual‐species biofilms formed by Streptococcus mutans and Candida albicans exhibit enhanced cariogenic potential due to the production of extracellular polysaccharides (EPSs). The response regulator GcrR in S. mutans negatively regulates EPS synthesis, but its impact on dual‐species biofilms remains unclear.
Bin Zhang, Shihao Hou, Anqi Zhang, Jielin Yang, Wenjiao Zhang, Shijie Zhu, Hong Chen, Ruizhe Huang   +7 more
wiley   +1 more source

Candida albicans mannans mediate Streptococcus mutans exoenzyme GtfB binding to modulate cross-kingdom biofilm development in vivo.

PLoS Pathogens, 2017
Candida albicans is frequently detected with heavy infection by Streptococcus mutans in plaque-biofilms from children with early-childhood caries (ECC).
Geelsu Hwang, Yuan Liu, Dongyeop Kim, Yong Li, Damian J Krysan, Hyun Koo   +5 more
doaj   +1 more source

Histiocytes: Multifaceted Regulators of Health and Disease

Veterinary Clinical Pathology, EarlyView.
ABSTRACT The mononuclear phagocyte system encompasses macrophages, dendritic cells (DCs), and monocytes. Tissue‐resident macrophages and dendritic cells arise during embryogenesis and are replenished either through self‐renewal or by monocytes during inflammation.
Erika J. Gruber
wiley   +1 more source

Extraction and structural study of hemicellulose B from tall fescue (Festuca arundinacea) : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Chemistry at Massey University [PDF]

, 1971
1.1 Hemicellulose The structural carbohydrates are mixtures of polysaccharides which together with lignin, constitute the cell wall. Usually they are divided into three fractions: pectic substances, hemicellulose and cellulose.1 Pectins, widely ...
Hensanghongs, Patana
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