Track topics on Twitter Track topics that are important to you
The septation initiation network (SIN), composed of a conserved SepH (Cdc7p) kinase cascade, plays an essential role in fungal cytokinesis/septation and conidiation for asexual reproduction, while the mitogen-activated protein kinase (MAPK) pathway depends on successive signaling cascade phosphorylation to sense and respond to stress and environmental factors. In this study, a SepH suppressor-PomA in the filamentous fungus A. nidulans is identified as a negative regulator of septation and conidiation such that the pomA mutant is able to cure defects of sepH1 in septation and conidiation and overexpression of pomA remarkably suppresses septation. Under the normal cultural condition, SepH positively regulates the phosphorylation of MAPK-HogA, while PomA reversely affects this process. In the absence of PbsB (MAPKK, a putative upstream member of HogA), PomA and SepH are unable to affect the phosphorylation level of HogA. Under the osmostress condition, the induced phosphorylated HogA is capable of bypassing the requirement of SepH, a key player for early events during cytokinesis but not for MobA/SidB, the last one in the core SIN protein kinase cascade, indicating the osmotic stimuli-induced septation is capable of bypassing requirement of SepH but unable to bypass the whole SIN requirement. Findings demonstrate that crosstalk exists between the SIN and MAPK pathways. PomA and SepH indirectly regulate HogA phosphorylation through affecting HogA-P upstream kinases.
This article was published in the following journal.
Name: PLoS genetics
Constitutive photomorphogenic 1 (COP1) is an E3 ubiquitin ligase that regulates important target proteins for cell growth including p27. The tumor suppressor p27 negatively regulates the cell cycle by...
Neurotensin is a peptide hormone released from enteroendocrine cells in the small intestine in response to fat ingestion. Although the mechanisms regulating neurotensin secretion are still incompletel...
The target of rapamycin (TOR) kinase is a conserved energy sensor that regulates growth in response to environmental cues. However, little is known about the TOR signaling pathway in plants. We used A...
NUMB is an evolutionarily conserved protein that plays an important role in cell adhesion, migration, polarity, and cell fate determination. It has also been shown to play a role in the pathogenesis o...
The sodium driven flagellar stator of Vibrio alginolyticus is a hetero-hexamer membrane complex composed of PomA and PomB, and acts as a sodium ion channel. The conformational change in the cytoplasmi...
The suppression of the immune system creates a permissive environment for development and progression of cancer. One population of immunosuppressive cells that have become the focus of int...
The study will evaluate the effects of the mGluR2/3 partial agonist LY2140023 (Pomaglumetad Methionil, "POMA") at selected doses on ketamine-stimulated glutamate release in prefrontal cort...
Participants will be administered several doses of POMA (low and high doses) over 14 days to individuals at clinical high risk for developing psychosis and use MRI brain imaging to determi...
We hypothesize that Next-generation Sequencing (NGS) can identify fungal pathogens, is more accurate than other noninvasive options and can report fungal genomic load.
The purpose of this study is to evaluate the relationship between fungal biomarker levels during anti-fungal therapy and the success of treatment for fugal infection
A gene product of the p16 tumor suppressor gene (GENES, P16). It antagonizes the function of MDM2 PROTEIN (which regulates P53 TUMOR SUPPRESSOR PROTEIN by targeting it for degradation). p14ARF is produced from the beta mRNA transcript of the p16 gene. The other gene product, produced from the alternatively spliced alpha transcript, is CYCLIN-DEPENDENT KINASE INHIBITOR P16. Both p16 gene products have tumor suppressor functions.
A product of the p16 tumor suppressor gene (GENES, P16). It is also called INK4 or INK4A because it is the prototype member of the INK4 CYCLIN-DEPENDENT KINASE INHIBITORS. This protein is produced from the alpha mRNA transcript of the p16 gene. The other gene product, produced from the alternatively spliced beta transcript, is TUMOR SUPPRESSOR PROTEIN P14ARF. Both p16 gene products have tumor suppressor functions.
A 150-kDa MAP kinase kinase kinase that may play a role in the induction of APOPTOSIS. It has specificity for MAP KINASE KINASE 3; MAP KINASE KINASE 4; and MAP KINASE KINASE 6.
A serine/threonine protein kinase with GTPase activity that contains 12 LEUCINE-rich repeats in its central region and 7 WD repeats C-terminal to its kinase and GTPase domains. It localizes to TRANSPORT VESICLES; the OUTER MITOCHONDRIAL MEMBRANE; and the GOLGI APPARATUS. It functions in PROTEIN TRANSPORT; regulates neuron morphology in the central nervous system, and also functions in the trafficking of SYNAPTIC VESICLES. Mutations in the LRRK2 gene have been identified in autosomal dominant cases of PARKINSON DISEASE (PARK8).
A 195-kDa MAP kinase kinase kinase with broad specificity for MAP KINASE KINASES. It is found localized in the CYTOSKELETON and can activate a variety of MAP kinase-dependent pathways.
Within medicine, nutrition (the study of food and the effect of its components on the body) has many different roles. Appropriate nutrition can help prevent certain diseases, or treat others. In critically ill patients, artificial feeding by tubes need t...
Adhd Anorexia Depression Dyslexia Mental Health Psychiatry Schizophrenia Stress Mental health, although not being as obvious as physical health, is very important, causing great unhappiness to those affected, causing add...