Results 51 to 60 of about 6,855,939 (294)

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Lead induced oxidative stress and alteration in the activities of antioxidative enzymes in rice shoots

Biologia Plantarum, 2017
Physiological responses of Oryza sativa L. to lead excess (10 and 50 μM) were studied in a hydroponic system after 48- and 96-h exposure. Accumulation of Pb in stressed rice shoots was concomitant with an increased metal concentration in the growth media
S. Thakur, L. Singh, A. W. Zularisam, M. Sakinah, M. F. M. Din   +4 more
doaj   +1 more source

Μελέτη της σχέσης συστηματικής αθλητικής δραστηριότητας και του δείκτη μάζας σώματος με τη βηματομετρική φυσική δραστηριότητα σε παιδιά ηλικίας 10 - 12 ετών [PDF]

, 2013
Σκοπός της παρούσας έρευνας ήταν η διερεύνηση της επίδρασης της συμμετοχής σε προγράμματα άθλησης εκτός σχολικού ωραρίου, του Δείκτη Μάζας Σώματος, του φύλου και της τάξης φοίτησης στη βηματομετρική δραστηριότητα παιδιών ηλικίας 10-12 ετών. Το δείγμα της
Μπογιατζίδης, Ευθύμιος Α.
core   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Scientific Opinion on Flavouring Group Evaluation 220 Revision 3 (FGE.220Rev3): Consideration of genotoxic potential for α,β‐unsaturated 3(2H)‐Furanones from subgroup 4.4 of FGE.19

EFSA Journal, 2015
The Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids of the European Food Safety Authority was requested to evaluate the genotoxic potential of 10 flavouring substances from FGE.19 subgroup 4.4, in the Flavouring Group Evaluation
EFSA Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids (CEF)
doaj   +1 more source

Identification of α,β-Hydrolase Domain Containing Protein 6 as a Diacylglycerol Lipase in Neuro-2a Cells

Frontiers in Molecular Neuroscience, 2019
The endocannabinoid 2-arachidonoylglycerol (2-AG) is involved in neuronal differentiation. This study aimed to identify the biosynthetic enzymes responsible for 2-AG production during retinoic acid (RA)-induced neurite outgrowth of Neuro-2a cells. First,
Annelot C. M. van Esbroeck, Vasudev Kantae, Vasudev Kantae, Xinyu Di, Tom van der Wel, Hans den Dulk, Anna F. Stevens, Simar Singh, Simar Singh, Alexander T. Bakker, Bogdan I. Florea, Nephi Stella, Nephi Stella, Herman S. Overkleeft, Thomas Hankemeier, Mario van der Stelt   +15 more
doaj   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Scientific Opinion on Flavouring Group Evaluation 208 Revision 1 (FGE.208Rev1): Consideration of genotoxicity data on representatives for 10 alicyclic aldehydes with the α,β‐unsaturation in ring / side‐chain and precursors from chemical subgroup 2.2 of FGE.19

EFSA Journal, 2015
The EFSA Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids was requested to evaluate the genotoxic potential of flavouring substances from subgroup 2.2 of FGE.19 in the Flavouring Group Evaluation 208 Revision 1 (FGE.208Rev1). The
EFSA Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids (CEF)
doaj   +1 more source

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

FEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo, Catherine S. Palmer, Jacqueline M. Kimmey   +2 more
wiley   +1 more source

Antileishmanial and antitrypanosomal activity of symmetrical dibenzyl-substituted α,β-unsaturated carbonyl-based compounds

Drug Design, Development and Therapy, 2019
Abdulsalam AM Alkhaldi,1 Harry P de Koning,2 Syed Nasir Abbas Bukhari31Biology Department, College of Science, Jouf University, Sakaka, Aljouf 2014, Saudi Arabia; 2Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life ...
Alkhaldi AAM, de Koning HP, Bukhari SNA
doaj