Results 61 to 70 of about 108,124 (355)
Altered Gut Archaea Composition and Interaction with Bacteria are Associated with Colorectal Cancer.
Gastroenterology, 2020 BACKGROUND & AIMS Changes in the intestinal microbiota have been associated with development and progression of colorectal cancer (CRC). Archaea are stable components of the microbiota, but little is known about their composition or contribution to ...
O. Coker +4 more
semanticscholar +1 more source
FEBS Letters, EarlyView.Nicotinamide (NIC) and nicotinic acid (NIA) are proposed as stress signaling compounds in plants. Oxidative stress may lead to single strand breaks (SSB) in DNA, which activate poly(ADP‐ribose) polymerase (PARP). NIC and NIA are then formed from NAD. NIC and NIA can promote epigenetic changes leading to the expression of defense genes specific for the ...
Torkel Berglund, Anna B. Ohlsson
wiley +1 more source
At the core of the Archaea. [PDF]
Proceedings of the National Academy of Sciences, 1996 There are three kinds of taxonomists, according to Ernst Mayr (1). Pheneticists group species by overall phenotypic similarity, renouncing evolutionary theory and explanation. Cladists, conversely, concern themselves exclusively with genealogy. Phenotypic resemblance between two taxa (lizards and crocodiles as reptiles, for instance), counts for ...
openaire +3 more sources
Wide diversity of methane and short-chain alkane metabolisms in uncultured archaea
Nature Microbiology, 2019 Methanogenesis is an ancient metabolism of key ecological relevance, with direct impact on the evolution of Earth’s climate. Recent results suggest that the diversity of methane metabolisms and their derivations have probably been vastly underestimated ...
Guillaume Borrel +15 more
semanticscholar +1 more source
A working model for cytoplasmic assembly of H/ACA snoRNPs
FEBS Letters, EarlyView.Dyskerin is the component of nuclear H/ACA ribonucleoproteins (RNPs) endowed with pseudouridine synthase catalytic activity. Two isoforms of human dyskerin have been characterized: the abundant Iso1, mainly nuclear, and the shorter Iso3, mainly cytoplasmic but occasionally imported into nuclei.
Alberto Angrisani, Maria Furia
wiley +1 more source
Current Biology, 1996 There's an old joke that circulates in newsrooms. A reporter rushes up to City Desk and breathlessly tells his editor that he has confirmed the Second Coming of Christ. The editor doesn't want the story. “We had that one already — 2 000 years ago.” If it's news, it has to be the first, the biggest, the oldest or the most, especially in science news. So,
openaire +3 more sources
Asgard archaea capable of anaerobic hydrocarbon cycling
Nature Communications, 2019 Large reservoirs of natural gas in the oceanic subsurface sustain complex communities of anaerobic microbes, including archaeal lineages with potential to mediate oxidation of hydrocarbons such as methane and butane. Here we describe a previously unknown
K. Seitz +8 more
semanticscholar +1 more source
FEBS Open Bio, EarlyView.Fervidibacter sacchari is a member of the bacterial phylum Armatimonadota, only a few of which have been cultivated. It is a hyperthermophilic polysaccharide degradation specialist. We show that a secreted enzyme, Fsa02490Xyn, is an endoxylanase belonging to glycoside hydrolase family 10.
Nicole Torosian +10 more
wiley +1 more source
Archaea, 2012 Today, there is increasing awareness of the multiple dynamic roles of lipids in cell life. Knowing how lipid molecular species are organized, interact with proteins, and change with environmental stress and metabolic state is crucial to understanding the membrane structure and the cellular functions. The present view of lipid biology arises from
Angela Corcelli +2 more
openaire +4 more sources
Complex archaea that bridge the gap between prokaryotes and eukaryotes
Nature, 2015 The origin of the eukaryotic cell remains one of the most contentious puzzles in modern biology. Recent studies have provided support for the emergence of the eukaryotic host cell from within the archaeal domain of life, but the identity and nature of ...
A. Spang +9 more
semanticscholar +1 more source