Results 61 to 70 of about 65,627 (261)
A novel germline hyperactivating JAK2 mutation L604F
AbstractSomatic JAK2 mutations are the main molecular cause of the vast majority of polycythemia vera (PV) cases. According to a recent structural model, the prevalent acquired V617F mutation improves the stability of the JAK2 dimer, thereby enhancing the constitutive JAK2 kinase activity.
Lukáš Dvořáček +6 more
openaire +2 more sources
UCHL3 Regulates Subgenomic Flaviviral RNA Condensates to Promote Virus Propagation
ABSTRACT Flavivirus subgenomic RNAs (sfRNAs) antagonise antiviral defences, yet how sfRNAs are organized and maintained in cells remains poorly understood. Here we identify ubiquitin C‐terminal hydrolase L3 (UCHL3) as a post‐translational regulator of flavivirus sfRNA stability and function.
Oscar Trejo‐Cerro +7 more
wiley +1 more source
Hyperactivation is one of the most critical parts for fertilization. cAMP generated by soluble adenylyl cyclase (sAC) is necessary to activate sperm and is a prerequisite for sperm hyperactivation.
Jing YU +3 more
doaj +1 more source
Hyperactivation is sufficient to release porcine sperm from immobilized oviduct glycans
Fertilizing sperm are retained by adhesion to specific glycans on the epithelium of the oviduct forming a reservoir before sperm are released from the reservoir so fertilization can ensue.
Momal Sharif +7 more
doaj +1 more source
. ABSTRACT Neuroinflammation driven by microglial activation is a defining feature of Alzheimer's disease (AD), yet the molecular mechanisms sustaining this proinflammatory state remain unclear. Here, we identify the deubiquitinase OTUD7B as a critical regulator of microglial activation and AD pathology.
Luyao Li +15 more
wiley +1 more source
Mst1-Deficiency Induces Hyperactivation of Monocyte-Derived Dendritic Cells via Akt1/c-myc Pathway
Mst1 is a multifunctional serine/threonine kinase that is highly expressed in several immune organs. The role of Mst1 in the activation of dendritic cells (DCs), a key player of adaptive immunity, is poorly understood.
Kyung-Min Cho +4 more
doaj +1 more source
Cyclin-dependent kinase five mediates activation of lung xanthine oxidoreductase in response to hypoxia. [PDF]
Xanthine oxidoreductase (XOR) is involved in oxidative metabolism of purines and is a source of reactive oxygen species (ROS). As such, XOR has been implicated in oxidant-mediated injury in multiple cardiopulmonary diseases.
Bo S Kim +9 more
doaj +1 more source
Bone cancer pain and depression share a common origin: astrocytic A2‐to‐A1 transition in the posterior piriform cortex. This phenotypic shift disrupts the ATP–adenosine–A2AR–norepinephrine axis, simultaneously driving nociceptive and affective dysfunction.
Jiang‐Ping Liu +14 more
wiley +1 more source
Delayed‐relaxed response explained by hyperactivation of RelE [PDF]
Summary Escherichia coli encodes two rel loci, both of which contribute to the control of synthesis of macromolecules during amino acid starvation. The product of relA (ppGpp synthetase I) is responsible for the synthesis of guanosine tetraphosphate, ppGpp, the signal molecule that exerts stringent control of stable RNA synthesis. The second rel locus,
Christensen S, Gerdes K
openaire +3 more sources
Dysregulated protein modifications drive tumorigenesis. RINES, an E3 ubiquitin ligase, represses tumor cell proliferation and metastasis by facilitating RING domain‐dependent, ubiquitin–proteasome‐mediated degradation of STAT3 and MYC, which consequently restrains cancer stemness and oncogenic progression.
Lili Li +8 more
wiley +1 more source

