Results 41 to 50 of about 36,864 (262)

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

open access: yesFEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva   +5 more
wiley   +1 more source

Complex Formation and Liquid-Liquid Extraction in the Niobium(V) – 2,4-Dihydroxythiophenol– Hydrophobic Amines System [PDF]

open access: yesPakistan Journal of Analytical & Environmental Chemistry, 2015
The formation and solvent extraction of new ion-association com¬ple- ¬xes between anionic chelat of niobium(V) with 2,4-dihydroxy¬thio¬phenol (DHTP) and hydrophobic amines (HAs). The HAs were aniline (An), N-methyl¬aniline (MAn), N,N-dimethylaniline
ALI Z. ZALOV
doaj  

Dissociation Constants of Thiolactic Acid

open access: yesZeitschrift für Physikalische Chemie, 1971
The acid dissociation constants of thiolactic acid have been determined potentiometrically and polarographically at three diffrent temperatures, \(pK_{D_1}\)values· have been found to be 3·63, 3·66 and 3·70 and \(pK_{D_2}\) values as 10.24, 10·18 and 10·11 at 20°,30° and 40° respectively.
R. S. Saxena, Singh, Pratap
openaire   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

open access: yesFEBS 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

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

open access: yesFEBS 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

HDO REACTION OF THF USING Pt/γ-AL2O3 CATALYST ENRICHED BY ALUMINA : EFFECT OF TEMPERATURE TO PRODUCT DISTRIBUTION, RATE OF REACTION AND DEACTIVATON OF CATALYST

open access: yesAlchemy, 2016
Effect of temperature variation to product distribution, rate and deactivation of catalyst of tetrahydrifuran hydrodeoxygenation have been conducted using Pt/gAl2O3 with aluminum enrichmen. Reaction was conducted by flow system.
Yuniawan Hidayat   +3 more
doaj   +1 more source

acidity constant

open access: yes, 2014
Citation: 'acidity constant' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.A00080 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source

Mechanisms of IgE‐mediated food allergy and the role of allergen‐specific B cells

open access: yesFEBS Letters, EarlyView.
Food allergy arises when allergen‐specific B cells preferentially produce immunoglobulin E (IgE) antibodies against harmless foods. This article explains the mechanisms driving IgE‐mediated reactions, highlights the central role of these B cells, and discusses how natural tolerance (NT) and oral immunotherapy (OIT) can reshape allergic immune responses.
Juan‐Felipe López   +2 more
wiley   +1 more source

Deprotonation of salicylic acid and 5-nitrosalicylic acid in aqueous solutions of ethanol [PDF]

open access: yesJournal of the Serbian Chemical Society, 2011
The protonation constant values of two hydroxybenzoic acids (salicylic and 5-nitrosalicylic acid) were studied in some water-ethanol solutions using spectrophotometric and potentiometric methods at 25°C and in an ionic strength of 0.1 M sodium ...
Faraji Mohammad   +3 more
doaj   +1 more source

Dissociation Constants of Hexosephosphoric Acids.

open access: yesExperimental Biology and Medicine, 1927
Hexosediphosphoric acid from yeast and hexosemonophosphoric acid from muscle (lactacidogen) were kindly made available from preparations by Professor Embden. Electrometric titration showed both stronger than pure phosphoric acid in the region of the first and, more conspicuously, in that of the second dissociation constant.
L. Irving, E. Fischer
openaire   +1 more source

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