Results 61 to 70 of about 3,431,780 (294)

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Use of microbial fecal indicator monitoring and fecal source tracking as a park management tool in Rocky Mountain National Park

Environmental Challenges, 2022
Visitation to national parks in the United States increased by an estimated 9,304,786 visitors from 2018 to 2019. This increased visitation has resulted in negative impacts to protected natural resources.
Laura C. Scott, Scott M. Esser, Alexandra Aubee, Nicholas Lee, Matthew T. Flood, Tiong Gim Aw   +5 more
doaj   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

Survival and detection of Bacteroides spp., prospective indicator bacteria [PDF]

Applied and Environmental Microbiology, 1985
Preliminary experiments were performed to assess the use of intestinal Bacteroides spp. as indicators of fecal contamination of water. Viable counts of Bacteroides fragilis, an anaerobic bacterium, declined more rapidly than those of Escherichia coli and Streptococcus faecalis. However, a fluorescent antiserum prepared against B.
L, Fiksdal, J S, Maki, S J, LaCroix, J T, Staley   +3 more
openaire   +2 more sources

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

The occurrence of Aeromonas spp. in the bottled mineral water, well water and tap water from the municipal supplies

Brazilian Archives of Biology and Technology, 2008
The aim of this work was to study the occurrence of Aeromonas sp in the bottled mineral water, well water and tap water from the municipal supplies. Positive samples were found for Aeromonas spp. 12.7% from the mineral water, 8.3% from the artesian water
Denise de Oliveira Scoaris, Fernando Cezar Bizerra, Sueli Fumie Yamada-Ogatta, Benício Alves de Abreu Filho, Tânia Ueda-Nakamura, Celso Vataru Nakamura, Benedito Prado Dias Filho   +6 more
doaj   +1 more source

Virus reduction at wastewater treatment plants in Nepal

Environmental Challenges, 2021
Continuous discharge of enteric viruses through treated wastewater is a potential threat to the environment and humans. This study aimed to investigate the occurrence and reduction of enteric viruses at two wastewater treatment plants (WWTPs) in the ...
Sarmila Tandukar, Rajani Ghaju Shrestha, Bikash Malla, Niva Sthapit, Jeevan B. Sherchand, Samendra P. Sherchan, Eiji Haramoto   +6 more
doaj   +1 more source

Survival of Indicator and Pathogenic Bacteria in Bovine Feces on Pasture [PDF]

Applied and Environmental Microbiology, 2007
ABSTRACT The survival of enteric bacteria was measured in bovine feces on pasture. In each season, 11 cow pats were prepared from a mixture of fresh dairy cattle feces and sampled for up to 150 days. Four pats were analyzed for Escherichia coli , fecal streptococci, and enterococci, and four inoculated ...
Lester W, Sinton, Robin R, Braithwaite, Carollyn H, Hall, Margaret L, Mackenzie   +3 more
openaire   +2 more sources

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Assessment of Fecal Indicator Bacteria and Potential Pathogen Co-Occurrence at a Shellfish Growing Area

Frontiers in Microbiology, 2018
Routine monitoring of shellfish growing waters for bacteria indicative of human sewage pollution reveals little about the bacterial communities that co-occur with these indicators. This study investigated the bacterial community, potential pathogens, and
A. Leight, B. Crump, R. Hood
semanticscholar   +1 more source