Results 71 to 80 of about 5,035 (248)
Polyphenol Oxidase Activity on Guaiacyl and Syringyl Lignin Units
Angewandte Chemie, Volume 136, Issue 48, November 25, 2024.The conversion of lignin‐derived guaiacyl (G) and syringyl (S) compounds into methoxy‐ortho‐diphenols through oxidative ortho‐hydroxylation and ortho‐demethoxylation reactions catalyzed by novel fungal polyphenol oxidases (PPOs) is presented. The formation of o‐diphenols rather than reactive quinones can be steered by the addition of a reductant. These
Caio de O. G. Silva +7 more
wiley +2 more sources
BMC Microbiology, 2016 Despite the fact that most vitamins are present in a variety of foods, malnutrition, unbalanced diets or insufficient intake of foods are still the cause of vitamin deficiencies in humans in some countries.
A. C. Torres +5 more
semanticscholar +1 more source
Receptor uptake arrays for vitamin B12, siderophores and glycans shape bacterial communities
, 2017 Molecular variants of vitamin B12, siderophores and glycans occur. To take up variant forms, bacteria may express an array of receptors. The gut microbe Bacteroides thetaiotaomicron has three different receptors to take up variants of vitamin B12 and 88 ...
Frank, Steven A.
core +1 more source
Adaptation of the autotrophic acetogen Sporomusa ovata to methanol accelerates the conversion of CO2 to organic products [PDF]
, 2015 Acetogens are efficient microbial catalysts for bioprocesses converting C1 compounds into organic products. Here, an adaptive laboratory evolution approach was implemented to adapt Sporomusa ovata for faster autotrophic metabolism and CO(2) conversion to
Bonde, Ida +4 more
core +1 more source
The Porphinoids - Versatile Biological Catalyst Molecules
CHIMIA, 1987 The natural porphinoids, such as the iron complex heme, the magnesium complex chlorophyll a, the nickel complex coenzyme F430, and the (corrinoid) cobalt complex coenzyme B12 play central roles in all spheres of life, e.g.
Bernhard Kräutler
doaj +1 more source
Exploration of isoxanthohumol bioconversion from spent hops into 8-prenylnaringenin using resting cells of Eubacterium limosum [PDF]
, 2020 Hops is an almost unique source of the potent phytoestrogen 8-prenylnaringenin (8-PN). As hops contain only low levels of 8-PN, synthesis may be more attractive than extraction.
Bolca, Selin +6 more
core +2 more sources
PLoS ONE, 2012 Haptocorrin (HC) is a circulating corrinoid binding protein with unclear function. In contrast to transcobalamin, the other transport protein in blood, HC is heavily glycosylated and binds a variety of cobalamin (Cbl) analogues. HC is present not only in
Evelyne Furger +6 more
doaj +1 more source
Basal gnathostomes provide unique insights into the evolution of vitamin B12 binders [PDF]
, 2014 © The Author(s), 2014. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Genome Biology and Evolution 7 (2015): 457-464, doi:10.1093/gbe/evu289.The uptake and transport of ...
Aluru, Neelakanteswar +5 more
core +1 more source
Microbes display broad diversity in cobamide preferences
mSystemsCobamides, the vitamin B12 (cobalamin) family of cofactors, are used by most organisms but produced by only a fraction of prokaryotes, and are thus considered key shared nutrients among microbes.
Kenny C. Mok +4 more
doaj +1 more source
A bacterial chloroform reductive dehalogenase: purification and biochemical characterization
Microbial Biotechnology, 2017 Summary We report herein the purification of a chloroform (CF)‐reducing enzyme, TmrA, from the membrane fraction of a strict anaerobe Dehalobacter sp. strain UNSWDHB to apparent homogeneity with an approximate 23‐fold increase in relative purity compared
Bat‐Erdene Jugder +6 more
doaj +1 more source