Results 41 to 50 of about 2,840,144 (244)

Structural and biochemical insights into the thermostable esterase Ta0887 from Thermoplasma acidophilum

FEBS Open Bio, EarlyView.
In this study, a novel esterase from the thermoacidophilic archaeon Thermoplasma acidophilum was biochemically and structurally characterized. Our results demonstrate that Ta0887 is a highly thermostable esterase that preferentially hydrolyzes p‐nitrophenyl hexanoate and possesses an α‐helical cap domain that likely contributes to its substrate ...
Alejandro Delgado‐Rey, Miriam Livier Llamas‐García, Gabriela M. Montero‐Morán, Leticia Santos, Samuel Lara‐González   +4 more
wiley   +1 more source

Variation in food web reliance on green and brown energy pathways across ecosystem gradients.

PLoS ONE
Aquatic food webs typically include highly coupled fast, 'green' energy pathways driven by algae or phytoplankton and slower, 'brown' energy channels driven by detritus and terrestrial plants.
James W Sturges, W Ryan James, Ryan J Rezek, Rolando O Santos, Mack White, Gina A Badlowski, Shakira Trabelsi, Jordan Massie, Justin S Lesser, Joel C Trexler, James Nelson, Jennifer S Rehage   +11 more
doaj   +1 more source

Status and trends in the structure of Arctic benthic food webs [PDF]

Polar Research, 2015
Ongoing climate warming is causing a dramatic loss of sea ice in the Arctic Ocean, and it is projected that the Arctic Ocean will become seasonally ice-free by 2040.
Monika Kędra, Charlotte Moritz, Emily S. Choy, Carmen David, Renate Degen, Steven Duerksen, Ingrid Ellingsen, Barbara Górska, Jacqueline M. Grebmeier, Dubrava Kirievskaya, Dick van Oevelen, Kasia Piwosz, Annette Samuelsen, Jan Marcin Węsławski   +13 more
doaj   +1 more source

The C‐terminal domain of yeast Arginyltransferase1 is essential for its catalytic activity

FEBS Open Bio, EarlyView.
Arginyltransferase 1 (Ate1), a eukaryotic enzyme, catalyses arginylation, transferring arginine from tRNA‐Arg to the amino terminus of the target protein. Overexpression of Ate1 in yeast is lethal and is dependent on arginylation. This study elucidates how mutations in the cofactor‐binding and active site of Ate1 and truncation of its structural ...
Vikas Kumar Yadav, Shweta Shweta, Manisha Malhotra, Vikash Maurya, Akhilesh Kumar   +4 more
wiley   +1 more source

Understanding and Mitigating the Risk of Accelerated Biological Aging in Survivors of Cancer: A Scoping Review

Aging and Cancer, EarlyView.
Cancer treatment is associated with measurable acceleration of biological aging across epigenetic, telomere, senescence, and immune biomarkers. However, biomarker validation and interventional strategies remain limited, especially in hematologic malignancies, underscoring the need for standardized multi‐omic aging assessments and adequately powered ...
Moataz Ellithi, Emily Herdman, Danielle Westmark, Vijaya R. Bhatt   +3 more
wiley   +1 more source

Metaweb approach to unravel food web structures: Exploring environmental changes and biotic interactions in Korean stream ecosystems

Ecological Indicators
Understanding food webs is crucial for grasping ecosystem functions and energy flows. However, the inherent complexity and variability of food web structures pose significant challenges to community ecology.
Da-Yeong Lee, Sagar Adhurya, Dae-Seong Lee, Young-Seuk Park   +3 more
doaj   +1 more source

Immunosuppressive Drug Use in Limited Systemic Sclerosis: An International Survey

Arthritis Care &Research, EarlyView.
Objective Current guidelines recommend immunosuppressive treatment for diffuse cutaneous systemic sclerosis but are less clear on their use in limited cutaneous systemic sclerosis (lcSSc) in the absence of internal organ complications. We conducted an international survey to understand current immunosuppressive drug prescribing patterns in lcSSc ...
Sabrina Hoa, Yicheng Mu, Marie Hudson, Janet Pope   +3 more
wiley   +1 more source

A review of species role concepts in food webs

, 2018
International audienceMany different concepts have been used to describe species' roles in food webs (i.e., the ways in which species participate in their communities as consumers and resources).
Bimler, Malyon D.,, Dalla Riva, Giulio Valentino, Cirtwill, Alyssa,, Gaiarsa, Marilia P., Dalla Riva, Giulio V.,, Dehling, D. Matthias,, Coux, Camille, Gaiarsa, Marilia P.,, Cagua, E. Fernando,, Cagua, E. Fernando, Coux, Camille,, Dalla Riva, Giulio V., Bimler, Malyon D., Cirtwill, Alyssa, Dehling, D. Matthias, Cirtwill, Alyssa R.   +15 more
core   +1 more source

Joining the dots: an automated method for constructing food webs from compendia of published interactions [PDF]

, 2015
Food webs are important tools for understanding how complex natural communities are structured and how they respond to environmental change. However their full potential has yet to be realised because of the huge amount of resources required to construct
Figueroa, D, Woodward, Guy, Gray, CE, Ma, Athen, Hudson, Lawrence N., Hudson, LN, Figueroa, David H., Ma, A, Perkins, D, Perkins, Dan, Perkins, Dan; id_orcid, Woodward, G, Gray, Clare   +12 more
core   +1 more source

Food Web Topology in High Mountain Lakes. [PDF]

PLoS ONE, 2015
Although diversity and limnology of alpine lake systems are well studied, their food web structure and properties have rarely been addressed. Here, the topological food webs of three high mountain lakes in Central Spain were examined.
Javier Sánchez-Hernández, Fernando Cobo, Per-Arne Amundsen   +2 more
doaj   +1 more source