Results 51 to 60 of about 1,818,239 (291)
Applied Sciences, 2021 The use of spectroscopic and spectrometric techniques to isolate, quantify, and characterize bioactive compounds from edible plants has become a common and mandatory activity in food chemistry.
José Daniel Lozada-Ramírez +3 more
doaj +1 more source
Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions
FEBS Letters, EarlyView.We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva +10 more
wiley +1 more source
Sensors, 2007 Urease is the enzyme catalyzing the hydrolysis of urea into carbon dioxide andammonia. This enzyme is substrate-specific, which means that the enzyme catalyzes thehydrolysis of urea only.
Rene Kizek +11 more
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Spectral Library of Maize Leaves under Nitrogen Deficiency Stress
Data, 2022 Maize crops occupy an important place in world food security. However, different conditions, such as abiotic stress factors, can affect the productivity of these crops, requiring technologies that facilitate their monitoring.
Maria C. Torres-Madronero +10 more
doaj +1 more source
FEBS Letters, EarlyView.The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li +2 more
wiley +1 more source
, 2012 Mössbauer spectrometry gives electronic, magnetic, and structural information from within materials. A Mössbauer spectrum is an intensity of γ-ray absorption versus energy for a specific resonant nucleus such as ^(57)Fe or ^(119)Sn.
Fultz, Brent
core +1 more source
The Colours of Octopus: Using Spectral Data to Measure Octopus Camouflage
Vision, 2022 No animal can so effectively camouflage in such a wide range of environments as the octopus. Thanks to their highly malleable skin, they are capable of adapting their body patterns to the brightness and texture of their immediate environment, and they ...
Luis Nahmad-Rohen +2 more
doaj +1 more source
Structural biology of ferritin nanocages
FEBS Letters, EarlyView.Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley +1 more source
The role of the mobile proton in fucose migration [PDF]
, 2019 Fucose migration reactions represent a substantial challenge in the analysis of fucosylated glycan structures by mass spectrometry. In addition to the well-established observation of transposed fucose residues in glycan-dissociation product ions, recent ...
Helden, Gert von +7 more
core +1 more source
Scientific Journal of Gdynia Maritime University, 2017 During exploitation, the engine oil undergoes the irreversible aging process that is – degradation. The speed of this process is affected by many factors such as high temperature, pressure, power output, oxygen from the air, mechanical shear forces, type,
M. Malinowska
doaj