Results 11 to 20 of about 4,001 (176)

Identification and structural characterization of a novel acetyl xylan esterase from Aspergillus oryzae. [PDF]

FEBS J
A novel acetyl xylan esterase was discovered from Aspergillus oryzae. The deacetylase activity toward wheat arabinoxylan increased synergistically with xylanase addition. The crystal structure exhibited hybrid features between two α/β‐hydrolase families, highlighting its structural uniqueness.
Yamada C, Kato T, Shiono Y, Koseki T, Fushinobu S.   +4 more
europepmc   +4 more sources

The role of acetyl xylan esterase in the solubilization of xylan and enzymatic hydrolysis of wheat straw and giant reed [PDF]

Biotechnology for Biofuels, 2011
Background Due to the complexity of lignocellulosic materials, a complete enzymatic hydrolysis into fermentable sugars requires a variety of cellulolytic and xylanolytic enzymes.
Zhang Junhua, Siika-aho Matti, Tenkanen Maija, Viikari Liisa   +3 more
doaj   +6 more sources

Expression of fungal acetyl xylan esterase in Arabidopsis thaliana improves saccharification of stem lignocellulose. [PDF]

Plant Biotechnol J, 2016
Cell wall hemicelluloses and pectins are O-acetylated at specific positions, but the significance of these substitutions is poorly understood. Using a transgenic approach, we investigated how reducing the extent of O-acetylation in xylan affects cell ...
Pawar PM, Derba-Maceluch M, Chong SL, Gómez LD, Miedes E, Banasiak A, Ratke C, Gaertner C, Mouille G, McQueen-Mason SJ, Molina A, Sellstedt A, Tenkanen M, Mellerowicz EJ.   +13 more
europepmc   +10 more sources

The acetyl xylan esterase II gene from Penicillium purpurogenum is differentially expressed in several carbon sources, and tightly regulated by pH [PDF]

Biological Research, 2004
The expression of the acetyl xylan esterase II (axeII) gene from Penicillium purpurogenum is repressed by glucose and induced by xylan, as well as to a small degree by xylose and xylitol.
RENATO CHÁVEZ, KAREN SCHACHTER, CLAUDIO NAVARRO, ALESSANDRA PEIRANO, PAULINA BULL, JAIME EYZAGUIRRE   +5 more
doaj   +4 more sources

Novel GH115 xylan α-1,2-glucuronidases with distinct preferences for xylan-derived oligomers and polymers. [PDF]

Protein Sci
Abstract Natural polymers are promising sustainable materials for diverse applications. Xylans, major components of hemicellulose, exhibit origin‐dependent substitution patterns that determine their physicochemical properties. Targeted enzymatic modification of these substituents offers a mild and precise approach for tailoring the polymer's ...
Leontakianakou S, Le SB, Sundin A, Jasilionis A, Nguyen GS, Nordborg A, Gottumukkala LD, Grey C, Lewin AS, Karlsson EN.   +9 more
europepmc   +2 more sources

Glucuronoyl Esterase Expressed in Aspen Xylem Affects γ-Ester Linkages Between Lignin and Glucuronoxylan Reducing Recalcitrance and Accelerating Growth. [PDF]

Plant Biotechnol J
ABSTRACT Wood is the most abundant renewable natural resource composed of different polysaccharides and lignin, but its utilisation is hampered by intermolecular linkages between these components forming lignin‐carbohydrate complexes (LCCs) causing recalcitrance.
Derba-Maceluch M, García Romañach L, Hedenström M, Mitra M, Donev EN, Urbancsok J, Yassin Z, Gandla ML, Sivan P, Šimura J, Scheepers G, Jönsson LJ, Vilaplana F, Mellerowicz EJ.   +13 more
europepmc   +2 more sources

Cereal Arabinoxylans-Their Enzymatic Degradation and Relevance for Breadmaking and Human Health. [PDF]

Compr Rev Food Sci Food Saf
ABSTRACT As the most abundant nonstarch polysaccharides in cereals, arabinoxylans (AXs) contribute significantly to the global intake of dietary fiber. They play a crucial role in the breadmaking process with respect to dough rheology and texture, bread volume, and nutritional quality, especially when starting from wheat or rye flour.
González-Alonso V, Verce M, De Vuyst L, Leroy F.   +3 more
europepmc   +2 more sources

The Factors Involved in Plant-Insect-Microbe Interactions Expanded: Genome Analysis and Description of Frigoribacterium adelgis sp. nov. [PDF]

Environ Microbiol Rep
Aerobic Actinobacteria belonging to the genus Frigoribacterium were isolated from adelgid Adelges (Aphrastasia) pectinatae collected from a Korean fir tree. Genomic analysis showed that these bacteria encode a range of factors that may be involved in the interactions between Frigoribacterium strains, adelgids and/or Korean fir trees.
Tamošiūnaitė G, Havelka J, Baranauskienė R, Lazutka J, Kuisiene N.   +4 more
europepmc   +2 more sources

Biochemical Characterization of Multimodular Xylanolytic Carbohydrate Esterases from the Marine Bacterium Flavimarina sp. Hel_I_48. [PDF]

Chembiochem
Multimodular carbohydrate‐active enzymes often combine different catalytic activities for efficient polysaccharide degradation. In this work, the structural and functional characterization of three multimodular xylan‐targeting esterases, Fl6, Fll1 and Fll4 from Flavimarina sp. Hel_I_48, are presented.
Teune M, Döhler T, Bartosik D, Schweder T, Bornscheuer UT.   +4 more
europepmc   +2 more sources

Modifying lignin composition and xylan O-acetylation induces changes in cell wall composition, extractability, and digestibility [PDF]

Biotechnology for Biofuels and Bioproducts
Background Lignin and xylan are important determinants of cell wall structure and lignocellulosic biomass digestibility. Genetic manipulations that individually modify either lignin or xylan structure improve polysaccharide digestibility.
Aniket Anant Chaudhari, Anant Mohan Sharma, Lavi Rastogi, Bhagwat Prasad Dewangan, Raunak Sharma, Deepika Singh, Rajan Kumar Sah, Shouvik Das, Saikat Bhattacharjee, Ewa J. Mellerowicz, Prashant Anupama-Mohan Pawar   +10 more
doaj   +2 more sources