keyword
MENU ▼
Read by QxMD icon Read
search

Protein Kinase

keyword
https://www.readbyqxmd.com/read/27913923/actn3-x-allele-carriers-had-greater-levels-of-muscle-damage-during-a-half-ironman
#1
Juan Del Coso, Juan José Salinero, Beatriz Lara, César Gallo-Salazar, Francisco Areces, Carlos Puente, David Herrero
PURPOSE: Alpha-actinin-3, encoded by the ACTN3 gene, is an actin-binding protein with an important role in myofibril contraction and muscle force output. In humans, there is a relatively common deficiency of the α-actinin-3 due to homozygosity in a polymorphism of the ACTN3 gene (R577X, rs1815739), that has been related to decreased resistance to strain during voluntary muscle contractions. The purpose of this study was to investigate the influence of the ACTN3 genotype on the level of exercise-induced muscle damage attained by 23 experienced triathletes during an official half-ironman competition...
December 2, 2016: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/27913859/complex-genetics-architecture-contributes-to-salmonella-resistance-in-acb60-mice
#2
Sean Beatty, Leïla Rached-D'Astous, Danielle Malo
Human infection with Salmonella is of global public health concern. In low- and middle-income countries, Salmonella infection is a major source of disease in terms of both mortality and morbidity, while in high-income nations, the pathogen is an ongoing threat to food security. The outcome of infection with Salmonella enterica serovar Typhimurium (Salmonella Typhimurium) in mouse models is dependent upon a coordinated and complex immune response. A panel of recombinant congenic strains (RCS) derived from the reciprocal double backcross of A/J and C57BL/6J mice has been screened for their susceptibility to Salmonella infection, and the RCS AcB60 was identified to be the most resistant strain to Salmonella infection, more resistant than the parental strain A/J...
December 2, 2016: Mammalian Genome: Official Journal of the International Mammalian Genome Society
https://www.readbyqxmd.com/read/27913845/mitogen-activated-protein-kinases-are-involved-in-hepatocanalicular-dysfunction-and-cholestasis-induced-by-oxidative-stress
#3
Flavia D Toledo, Cecilia L Basiglio, Ismael R Barosso, Andrea C Boaglio, Andrés E Zucchetti, Enrique J Sánchez Pozzi, Marcelo G Roma
In previous studies, we showed that the pro-oxidant model agent tert-butyl hydroperoxide (tBuOOH) induces alterations in hepatocanalicular secretory function by activating Ca(2+)-dependent protein kinase C isoforms (cPKC), via F-actin disorganization followed by endocytic internalization of canalicular transporters relevant to bile formation (Mrp2, Bsep). Since mitogen-activated protein kinases (MAPKs) may be downstream effectors of cPKC, we investigated here the involvement of the MAPKs of the ERK1/2, JNK1/2, and p38(MAPK) types in these deleterious effects...
December 2, 2016: Archives of Toxicology
https://www.readbyqxmd.com/read/27913741/aik1-a-mitogen-activated-protein-kinase-modulates-abscisic-acid-responses-through-the-mkk5-mpk6-kinase-cascade
#4
Kun Li, Fengbo Yang, Guozeng Zhang, Shufei Song, Yuan Li, Yuchen Miao, Dongtao Ren, Chun-Peng Song
The mitogen-activated protein kinase (MAPK) cascade is an evolutionarily conserved signal transduction module involved in transducing extracellular signals to the nucleus for appropriate cellular adjustment. This cascade essentially consists of three components, a MAPK kinase kinase (MAPKKK), a MAPK kinase (MAPKK) and a MAPK, connected to each other by the event of phosphorylation. Here we report the characterization of a MAPKKK, AIK1, which regulates abscisic acid (ABA) responses in Arabidopsis. T-DNA insertion mutants of AIK1 showed insensitivity to ABA in terms of both root growth and stomatal response...
December 2, 2016: Plant Physiology
https://www.readbyqxmd.com/read/27913682/translational-regulation-of-mitochondrial-biogenesis
#5
REVIEW
Yi Zhang, Hong Xu
Mitochondria are generated by the expression of genes on both nuclear and mitochondrial genome. Mitochondrial biogenesis is highly plastic in response to cellular energy demand, developmental signals and environmental stimuli. Mechanistic target of rapamycin (mTOR) pathway regulates mitochondrial biogenesis to co-ordinate energy homeostasis with cell growth. The local translation of mitochondrial proteins on the outer membrane facilitates their efficient import and thereby allows prodigious mitochondrial biogenesis during rapid cell growth and proliferation...
December 15, 2016: Biochemical Society Transactions
https://www.readbyqxmd.com/read/27913678/regulation-of-protein-phosphatase-2a-pp2a-tumor-suppressor-function-by-pme-1
#6
REVIEW
Amanpreet Kaur, Jukka Westermarck
Protein phosphatase 2A (PP2A) plays a major role in maintaining cellular signaling homeostasis by dephosphorylation of a variety of signaling proteins and acts as a tumor suppressor. Protein phosphatase methylesterase-1 (PME-1) negatively regulates PP2A activity by highly complex mechanisms that are reviewed here. Importantly, recent studies have shown that PME-1 promotes oncogenic MAPK/ERK and AKT pathway activities in various cancer types. In human glioma, high PME-1 expression correlates with tumor progression and kinase inhibitor resistance...
December 15, 2016: Biochemical Society Transactions
https://www.readbyqxmd.com/read/27913672/first-model-of-dimeric-lrrk2-the-challenge-of-unrevealing-the-structure-of-a-multidomain-parkinson-s-associated-protein
#7
REVIEW
Giambattista Guaitoli, Bernd K Gilsbach, Francesco Raimondi, Christian Johannes Gloeckner
Mutations within the leucine-rich repeat kinase 2 (LRRK2) gene represent the most common cause of Mendelian forms of Parkinson's disease, among autosomal dominant cases. Its gene product, LRRK2, is a large multidomain protein that belongs to the Roco protein family exhibiting GTPase and kinase activity, with the latter activity increased by pathogenic mutations. To allow rational drug design against LRRK2 and to understand the cross-regulation of the G- and the kinase domain at a molecular level, it is key to solve the three-dimensional structure of the protein...
December 15, 2016: Biochemical Society Transactions
https://www.readbyqxmd.com/read/27913671/l-rrk-de-triomphe-a-solution-for-lrrk2-gtpase-activity
#8
REVIEW
Jonathon Nixon-Abell, Daniel C Berwick, Kirsten Harvey
Leucine-rich repeat kinase 2 (LRRK2) is a central protein in the pathogenesis of Parkinson's disease (PD), yet its normal function has proved stubbornly hard to elucidate. Even though it remains unclear how pathogenic mutations affect LRRK2 to cause PD, recent findings provide increasing cause for optimism. We summarise here the developing consensus over the effect of pathogenic mutations in the Ras of complex proteins and C-terminal of Roc domains on LRRK2 GTPase activity. This body of work has been greatly reinforced by our own study of the protective R1398H variant contained within the LRRK2 GTPase domain...
December 15, 2016: Biochemical Society Transactions
https://www.readbyqxmd.com/read/27913670/screening-for-chemical-modulators-for-lrrk2
#9
REVIEW
Heather Mortiboys
After the discovery of leucine-rich repeat kinase 2 (LRRK2) as a risk factor for sporadic Parkinson's disease (PD) and mutations in LRRK2 as a cause of some forms of familial PD, there has been substantial interest in finding chemical modulators of LRRK2 function. Most of the pathogenic mutations in LRRK2 are within the enzymatic cores of the protein; therefore, many screens have focused on finding chemical modulators of this enzymatic activity. There are alternative screening approaches that could be taken to investigate compounds that modulate LRRK2 cellular functions...
December 15, 2016: Biochemical Society Transactions
https://www.readbyqxmd.com/read/27913669/the-unconventional-g-protein-cycle-of-lrrk2-and-roco-proteins
#10
REVIEW
Susanne Terheyden, Laura M Nederveen-Schippers, Arjan Kortholt
Mutations in the human leucine-rich repeat kinase 2 (LRRK2) are the most frequent cause of hereditary Parkinson's disease (PD). LRRK2 belongs to the Roco family of proteins, which are characterized by the presence of a Ras of complex proteins domain (Roc), a C-terminal of Roc domain (COR) and a kinase domain. Despite intensive research, much remains unknown about activity and the effect of PD-associated mutations. Recent biochemical and structural studies suggest that LRRK2 and Roco proteins are noncanonical G-proteins that do not depend on guanine nucleotide exchange factors or GTPase-activating proteins for activation...
December 15, 2016: Biochemical Society Transactions
https://www.readbyqxmd.com/read/27913654/novel-small-molecule-jp-153-targets-the-src-fak-paxillin-signaling-complex-to-inhibit-vegf-induced-retinal-angiogenesis
#11
Jordan J Toutounchian, Jayaprakash Pagadala, Duane D Miller, Jerome Baudry, Frank Park, Edward Chaum, Charles R Yates
Targeting vascular endothelial growth factor (VEGF) is a common treatment strategy for neovascular eye disease, a major cause of vision loss in diabetic retinopathy and age-related macular degeneration. However, the decline in clinical efficacy over time in many patients suggests that monotherapy of anti-VEGF protein therapeutics may benefit from adjunctive treatments. Our previous work has shown that through decreased activation of the cytoskeletal protein paxillin, growth factor-induced ischemic retinopathy in the murine oxygen-induced retinopathy model could be inhibited...
January 2017: Molecular Pharmacology
https://www.readbyqxmd.com/read/27913625/absence-of-mir-146a-in-podocytes-increases-risk-of-diabetic-glomerulopathy-via-upregulation-of-erbb4-and-notch-1
#12
Ha Won Lee, Samia Q Khan, Shehryar Khaliqdina, Mehmet M Altintas, Florian Grahammer, Jimmy L Zhao, Kwihey Koh, Nicholas J Tardi, Mohd Hafeez Faridi, Terese Geraghty, David J Cimbaluk, Katalin Susztak, Luis F Moita, David Baltimore, Pierre-Louis Tharaux, Tobias B Huber, Matthias Kretzler, Markus Bitzer, Jochen Reiser, Vineet Gupta
Podocyte injury is an early event in diabetic kidney disease and is a hallmark of glomerulopathy. MicroRNA-146a (miR-146a) is highly expressed in many cell types under homeostatic conditions, and plays an important anti-inflammatory role in myeloid cells. However, its role in podocytes is unclear. Here, we show that miR-146a expression levels decrease in the glomeruli of patients with type 2 diabetes (T2D), which correlates with increased albuminuria and glomerular damage. MiR-146a levels are also significantly reduced in the glomeruli of albuminuric BTBR ob/ob mice, indicating its significant role in maintaining podocyte health...
December 2, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27913624/bcp1-is-the-nuclear-chaperone-of-the-60s-ribosomal-protein-rpl23-in-saccharomyces-cerevisiae
#13
Ya-Han Ting, Ting-Jun Lu, Arlen W Johnson, Jing-Ting Shie, Bo-Ru Chen, Suresh Kumar S, Kai-Yin Lo
Eukaryotic ribosomes are composed of rRNAs and ribosomal proteins. Ribosomal proteins are translated in the cytoplasm and imported into the nucleus for assembly with the rRNAs. It has been shown that chaperones or karyopherins responsible for import can maintain the stability of ribosomal proteins by neutralizing unfavorable positive charges and thus facilitate their transports. Among 79 ribosomal proteins in yeast, only few are identified with specific chaperones. Besides the classic role in maintaining protein stability, chaperones have additional roles in transport, chaperoning the assembly site, and dissociation of ribosomal proteins from karyopherins...
December 2, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27913589/integrin-linked-kinase-ilk-deletion-disrupts-oligodendrocyte-development-by-altering-cell-cycle
#14
Rashad Hussain, Wendy B Macklin
: During development, oligodendrocytes are initially specified, after which oligodendrocyte precursor cells (OPCs) migrate and proliferate before differentiating into myelinating cells. Lineage specific programming of oligodendrocytes results from sensing environmental cues through membrane-bound receptors and related intracellular signaling molecules. Integrin linked kinase (ILK) is an important protein expressed at the inner margins of the plasma membrane, which can mediate some of these signals...
December 2, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27913573/thyroid-hormones-induce-browning-of-white-fat
#15
Noelia Martinez, José María Moreno-Navarrete, Cristina Contreras, Eva Rial-Pensado, Johan Fernø, Rubén Nogueiras, Carlos Diéguez, José M Fernández-Real, Miguel López
The canonical view about the effect of thyroid hormones (THs) on thermogenesis assumes that the hypothalamus acts merely as a modulator of the sympathetic outflow on brown adipose tissue (BAT). Recent data have challenged that vision by demonstrating that THs act on the ventromedial nucleus of the hypothalamus (VMH) to inhibit AMP-activated protein kinase (AMPK), which regulates the thermogenic program in BAT, leading to increased thermogenesis and weight loss. Current data have shown that in addition to activation of brown fat, the browning of white adipose tissue (WAT) might be also an important thermogenic mechanism...
December 2, 2016: Journal of Endocrinology
https://www.readbyqxmd.com/read/27913303/an-mtorc1-akt1-cathepsin-h-axis-controls-filaggrin-expression-and-processing-in-skin-a-novel-mechanism-for-skin-barrier-disruption-in-atopic-dermatitis
#16
Aishath S Naeem, Cristina Tommasi, Christian Cole, Stuart J Brown, Yanan Zhu, Benjamin Way, Saffron Ag Willis Owen, Miriam Moffatt, William O Cookson, John I Harper, Di Wl, Sara J Brown, Thomas Reinheckel, Ryan F L O'Shaughnessy
BACKGROUND: Filaggrin, encoded by the FLG gene, is an important component of the skin's barrier to the external environment and genetic defects in FLG strongly associate with Atopic Dermatitis (AD). However, not all AD patients have FLG mutations. OBJECTIVE: We hypothesised that these patients may possess other defects in filaggrin expression and processing, contributing to barrier disruption and AD, and therefore present novel therapeutic targets for this disease...
November 29, 2016: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27913299/the-inhibitory-effect-of-beta-lapachone-on-rankl-induced-osteoclastogenesis
#17
Dong Ryun Gu, Joon No Lee, Gi-Su Oh, Hyung Jin Kim, Min Seuk Kim, Seoung Hoon Lee
β-lapachone (β-L) is a substrate of reduced nicotinamide adenine dinucleotide (NADH): quinone oxidoreductase 1 (NQO1). NQO1 reduces quinones to hydroquinones using NADH as an electron donor and consequently increases the intracellular NAD+/NADH ratio. The activation of NQO1 by β-L has beneficial effects on several metabolic syndromes, such as obesity, hypertension, and renal injury. However, the effect of β-L on bone metabolism remains unclear. Here, we show that β-L might be a potent inhibitor of receptor activator of nuclear factor-κB ligand (RANKL)-induced osteoclastogenesis...
November 29, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27913296/regulation-of-skeletal-muscle-insulin-stimulated-signaling-through-the-mek-redd1-mtor-axis
#18
Cory M Dungan, David L Williamson
Recent findings in adipocytes suggest that mitogen-activated protein kinase (MAPK)/extracellular-regulated signaling kinase (ERK) kinase 1/2 (MEK1/2) signaling regulates regulated in development and DNA damage 1 (REDD1) protein expression. Similarly, our previous work show that a lack of REDD1 protein expression, and associated hyperactive basal mechanistic target of rapamycin (mTOR) signaling, limits skeletal muscle's response to insulin. Therefore, we sought to determine: 1) if MEK1/2 inhibition is sufficient to reduce REDD1 protein expression and subsequently insulin receptor substrate-1 (IRS-1) tyrosine phosphorylation via negative feedback of hyperactive mTOR in REDD1 wild-type (WT) mice and 2) if rapamycin-mediated mTOR inhibition is sufficient to improve IRS-1 tyrosine phosphorylation in REDD1 knockout (KO) mice...
November 29, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27913293/differential-role-of-calpain-dependent-protein-cleavage-in-intermediate-and-long-term-operant-memory-in-aplysia
#19
Lisa C Lyons, Jacob S Gardner, Cassidy T Lentsch, Catherine E Gandour, Harini C Krishnan, Eric J Noakes
In addition to protein synthesis, protein degradation or protein cleavage may be necessary for intermediate (ITM) and long-term memory (LTM) to remove molecular constraints, facilitate persistent kinase activity and modulate synaptic plasticity. Calpains, a family of conserved calcium dependent cysteine proteases, modulate synaptic function through protein cleavage. We used the marine mollusk Aplysia californica to investigate the in vivo role of calpains during intermediate and long-term operant memory formation using the learning that food is inedible (LFI) paradigm...
November 29, 2016: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/27913209/abl2-kinase-phosphorylates-bi-organellar-regulator-mnrr1-in-mitochondria-stimulating-respiration
#20
Siddhesh Aras, Hassan Arrabi, Neeraja Purandare, Maik Hüttemann, John Kamholz, Stephan Züchner, Lawrence I Grossman
We previously showed that MNRR1 (Mitochondrial Nuclear Retrograde Regulator 1, also CHCHD2) functions in two subcellular compartments, displaying a different function in each. In the mitochondria it is a stress regulator of respiration that binds to cytochrome c oxidase (COX) whereas in the nucleus it is a transactivator of COX4I2 and other hypoxia-stimulated genes. We now show that binding of MNRR1 to COX is promoted by phosphorylation at tyrosine-99 and that this interaction stimulates respiration. We show that phosphorylation of MNRR1 takes place in mitochondria and is mediated by Abl2 kinase (ARG)...
November 29, 2016: Biochimica et Biophysica Acta
keyword
keyword
36678
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"