Results 21 to 30 of about 880,315 (306)

Hierarchical graphene oxide-Ni3S2 quantum dots nanocomposites modified glassy carbon electrode for electrochemical detection of dopamine and tyrosine

open access: yesFrontiers in Materials, 2023
A facile synthetic strategy is demonstrated to generate nickel sulfide quantum dots (Ni3S2). The thus formed Ni3S2 quantum dots are assembled onto exfoliated graphene oxide sheets hydrothermally to form nickel sulfide-graphene oxide nanocomposite ...
M. Hasheena   +4 more
doaj   +1 more source

Effects of Dietary Phenylalanine and Tyrosine Supplements on the Chronic Stress Response in the Seabream (Sparus aurata)

open access: yesFrontiers in Physiology, 2022
The increase of aquaculture production is associated with a growing interest in improving physiological status and welfare in fish. For this reason, the search for strategies for mitigating stress has been intensified, with one of these strategies being ...
Natalia Salamanca   +6 more
doaj   +1 more source

The protein tyrosine kinases EpsB and PtkA differentially affect biofilm formation in Bacillus subtilis [PDF]

open access: yes, 2014
The Gram-positive soil bacterium Bacillus subtilis is able to choose between motile and sessile lifestyles. The sessile way of life, also referred to as biofilm, depends on the formation of an extracellular polysaccharide matrix and some extracellular ...
Stanley-Wall, Nicola   +6 more
core   +1 more source

Tyrosine-Based Dual-Functional Interface for Trapping and On-Site Photo-Induced Covalent Immobilization of Proteins

open access: yes, 2022
Tyrosine, a simple and well-available natural amino acid, is featured by the small size of the compound that contains multiple reactive groups. This study developed an efficient bioconjugation strategy using tyrosine-based dual-functional interfaces ...
Xu Xiang   +13 more
core   +1 more source

T cell development and T cell responses in mice with mutations affecting tyrosines 292 or 315 of the ZAP-70 protein tyrosine kinase [PDF]

open access: yes, 2001
After stimulation of the T cell receptor (TCR), the tyrosine residues 292 and 315 in interdomain B of the protein tyrosine kinase ZAP-70 become phosphorylated and plausibly function as docking sites for Cbl and Vav1, respectively. The two latter proteins
Magnan, A   +38 more
core   +1 more source

Increased prevalence of Parkinson's disease in alkaptonuria

open access: yesJIMD Reports, 2023
Amongst a cohort of 88 alkaptonuria (AKU) patients attending the United Kingdom National Alkaptonuria Centre (NAC), four unrelated patients had co‐existing Parkinson's disease (PD).
Lakshminarayan Ranganath   +8 more
doaj   +1 more source

Angiotensin II impairs endothelial function via tyrosine phosphorylation of the endothelial nitric oxide synthase [PDF]

open access: yes, 2009
Proline-rich tyrosine kinase 2 (PYK2) can be activated by angiotensin II (Ang II) and reactive oxygen species. We report that in endothelial cells, Ang II enhances the tyrosine phosphorylation of endothelial NO synthase (eNOS) in an AT1-, H2O2-, and PYK2-
Loot, Annemarieke E.   +7 more
core   +1 more source

Abnormalities affecting tyrosine kinase signalling in atypical myeloproliferative disorders [PDF]

open access: yes, 2009
The myeloproliferative disorders (MPDs) are a group of haematopoietic stem cell diseases, characterised by proliferation of one or more cells of the myeloid lineage.
Hidalgo-Curtis, Claire
core   +1 more source

L-DOPA Trends in Different Tissues at Early Stages of Vicia faba Growth: Effect of Tyrosine Treatment

open access: yesApplied Sciences, 2018
The nonprotein amino acid Levo-3,4-dihydroxyphenylalanine (L-DOPA) has insecticidal, allelochemical, and antiparkinsonian effects. The aim of this research was to assess L-DOPA content in different tissues of Vicia faba (cv.
Claudia A. Oviedo-Silva   +2 more
doaj   +1 more source

Cbl-associated protein is tyrosine phosphorylated by c-Abl and c-Src kinases [PDF]

open access: yes, 2009
Background: The c-Cbl-associated protein (CAP), also known as ponsin, localizes to focal adhesions and stress fibers and is involved in signaling events.
Tomasovic, Ana   +11 more
core   +1 more source

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