Results 211 to 220 of about 204,518 (306)

Photoperiod‐Regulated Thermal Tolerance of the Non‐Diapausing Insect Ceratitis capitata (Diptera: Tephritidae)

open access: yesEntomologia Experimentalis et Applicata, EarlyView.
Developmental photoperiodic exposure (photoacclimation) from egg to adult emergence alters thermal tolerance in Ceratitis capitata. Flies reared under contrasting photoperiods (0:24, 8:16, 14:10, and 24:0 L:D) showed significant shifts in both CTmin and CTmax, whereas adult‐only photoacclimation affected CTmax but not CTmin.
Antonis G. Papadopoulos   +1 more
wiley   +1 more source

Targeting the microbiota‐miRNA‐protease axis: A new therapeutic avenue in melanoma

open access: yesThe FEBS Journal, EarlyView.
Modulation of extracellular matrix (ECM) turnover is central to melanoma progression and metastasis, driven largely by ECM proteases. This review highlights the epigenetic regulation of ECM proteases by microRNAs and their roles in melanoma growth, invasion, and immune modulation.
Elias N. Katsoulieris   +2 more
wiley   +1 more source

Phycocyanobilin biosynthesis in Galdieria sulphuraria requires isomerization of phycoerythrobilin synthesized by bilin reductases

open access: yesThe FEBS Journal, EarlyView.
The biosynthesis of bilins, tetrapyrroles essential for light harvesting and sensing, is performed by specific enzymes (FDBRs). In Galdieria sulphuraria, both phycobiliprotein types bind phycocyanobilin, despite lacking the canonical synthesizing gene PCYA. Instead, PEBA and PEBB are encoded, producing phycoerythrobilin, proposed to be later isomerized
Federica Frascogna   +4 more
wiley   +1 more source

Human IDO2 exhibits unique binding affinities distinct to those of human IDO1

open access: yesThe FEBS Journal, EarlyView.
Although indoleamine 2,3‐dioxygenase 2 (IDO2) is highly homologous to IDO1, it displays markedly lower catalytic activity. We found that IDO2 binds L‐tryptophan (L‐Trp) in a flipped orientation stabilized by the IDO2‐specific residue His143. Replacement of His143 with the IDO1‐equivalent tyrosine restored an IDO1‐like binding mode and increased ...
Shunsuke Nogi   +8 more
wiley   +1 more source

ALOX15 mediates thrombin‐induced myristoylation, trafficking, and interaction of protease‐activated receptors, leading to platelet activation and hemostasis

open access: yesThe FEBS Journal, EarlyView.
The role of PARs in platelet function is fairly known; however, the underlying mechanisms are not fully understood. We report that thrombin myristoylates PAR4 in mouse platelets and PAR1 and PAR4 in human platelets, facilitating their membrane transport and interaction, leading to PAR3/4 heterodimers in mice and PAR1/4 heterodimers in humans.
Suresh Govatati   +4 more
wiley   +1 more source

Microbial SCFAs as epigenetic mediators: fine-tuning the gut-brain axis in neurodegenerative disorders. [PDF]

open access: yesCurr Res Microb Sci
Xu X   +8 more
europepmc   +1 more source

Spatially resolved mapping of histones reveals selective neuronal response in Rett syndrome

open access: yesThe FEBS Journal, EarlyView.
Loss of Mecp2 function is associated with Rett syndrome (RTT). MeCP2 regulates chromatin, yet its influence on histone composition and dynamics is unclear. Combining MALDI‐MSI with LCM–LC–MS/MS, we mapped histone proteoforms across the dentate gyrus, cornu ammonis, and cerebellum in two mouse models of RTT.
Frederike Schäfer   +6 more
wiley   +1 more source

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