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https://www.readbyqxmd.com/read/28344081/plasma-membrane-crpk1-mediated-phosphorylation-of-14-3-3-proteins-induces-their-nuclear-import-to-fine-tune-cbf-signaling-during-cold-response
#1
Ziyan Liu, Yuxin Jia, Yanglin Ding, Yiting Shi, Zhen Li, Yan Guo, Zhizhong Gong, Shuhua Yang
In plant cells, changes in fluidity of the plasma membrane may serve as the primary sensor of cold stress; however, the precise mechanism and how the cell transduces and fine-tunes cold signals remain elusive. Here we show that the cold-activated plasma membrane protein cold-responsive protein kinase 1 (CRPK1) phosphorylates 14-3-3 proteins. The phosphorylated 14-3-3 proteins shuttle from the cytosol to the nucleus, where they interact with and destabilize the key cold-responsive C-repeat-binding factor (CBF) proteins...
March 21, 2017: Molecular Cell
https://www.readbyqxmd.com/read/28336535/the-effects-of-short-work-versus-longer-work-periods-within-intermittent-exercise-on-v%C3%AC-o2p-kinetics-muscle-deoxygenation-and-energy-system-contribution
#2
Michael Christopher McCrudden, Daniel A Keir, Glen R Belfry
We examined the effects of inserting 3 s recovery periods during high-intensity cycling exercise at 25 s and 10 s intervals on pulmonary oxygen uptake (V̇O2p), muscle deoxygenation (HHb), associated kinetics (τ), and energy system contributions. Eleven men (24±3 years) completed two trials of three cycling protocols: an 8 min continuous protocol (CONT) and two, 8 min intermittent exercise protocols with work-to-rest periods of 25 s-to-3 s (25INT) and 10 s-to-3 s (10INT). Each protocol began with a step-transition from a 20 W baseline to a power output (PO) of 60% between lactate threshold and maximal V̇O2p (Δ60)...
March 23, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28335586/can-characteristic-mri-brain-substitute-invasive-lumbar-puncture-search-for-14-3-3-immunoassay-for-creutzfeldt-jakob-disease-suggestions-from-a-case-study
#3
Saira Saad, Mazhar Badshah, Muhammad Irshad
No abstract text is available yet for this article.
February 2017: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/28332471/cjd-surveillance-in-the-republic-of-ireland-from-2005-to-2015-a-suggested-algorithm-for-referrals
#4
Teresa Loftus, Daphne Chen, Seamus Looby, Albi Chalissery, Rachel Howley, Ciara Heaney, Josephine Heffernan, Michael Farrell, Francesca Brett
Definitive diagnosis of Creutzfeldt Jakob disease (CJD) remains tissue-based. Possible and probable CJD are useful clinical terms but may be used indiscriminately. The aim of this study was to assess the effectiveness of the Irish surveillance system and to ascertain how diagnostic accuracy in identifying clinically "definite" cases might be improved. We reviewed the clinical information, relevant investigations, and samples n = 100; (autopsy n = 87; biopsy n = 13) in 96 patients between January 1, 2005 and December 31, 2015...
March 23, 2017: Clinical Neuropathology
https://www.readbyqxmd.com/read/28322998/14-3-3-%C3%AE-and-14-3-3-%C3%AE-contribute-to-immune-responses-in-planarian-dugesia-japonica
#5
Qingqing Lu, Suge Wu, Hui Zhen, Hongkuan Deng, Qian Song, Kaifu Ma, Zhonghong Cao, Qiuxiang Pang, Bosheng Zhao
14-3-3 proteins are a family of highly conserved acidic proteins that regulate cellular processes. They act as a kind of important signaling molecules taking part in many crucial decisions throughout the development process. We have isolated and characterized two members of the 14-3-3 family, namely, Dj14-3-3 α and Dj14-3-3 ζ in the planarian Dugesia japonica. The Dj14-3-3 α and ζ genes encode polypeptides of 260 and 255 amino acids respectively. We have proved that the Dj14-3-3 α and ζ genes were especially expressed in the pharynx in adult and regenerating planarians by in situ hybridization and they are not involved in regeneration process...
March 16, 2017: Gene
https://www.readbyqxmd.com/read/28315325/-epigallocatechin-3-gallate-stimulates-myogenic-differentiation-through-taz-activation
#6
A Rum Kim, Kyung Min Kim, Mi Ran Byun, Jun-Ha Hwang, Jung Il Park, Ho Taek Oh, Mi Gyeong Jeong, Eun Sook Hwang, Jeong-Ho Hong
Muscle loss is a typical process of aging. Green tea consumption is known to slow down the progress of aging. Their underlying mechanisms, however, remain largely unknown. In this study, we investigated the effect of (-)-epigallocatechin-3-gallate (EGCG), a polyphenolic compound of green tea, on myogenic differentiation and found that EGCG significantly increases myogenic differentiation. After EGCG treatment, the expression of myogenic marker genes, such as myosin heavy chain, are increased through activation of TAZ, a transcriptional coactivator with a PDZ-binding motif...
March 14, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28301569/meiotic-failure-in-cyclin-a1-deficient-mouse-spermatocytes-triggers-apoptosis-through-intrinsic-and-extrinsic-signaling-pathways-and-14-3-3-proteins
#7
Sunil K Panigrahi, Marcia Manterola, Debra J Wolgemuth
Cyclin A1 (Ccna1), a member of the mammalian A type cyclins, is most abundantly expressed in spermatocytes and is essential for spermatogenesis in the mouse. Ccna1- deficient spermatocytes arrest at late meiotic prophase and undergo apoptosis. To further delineate the mechanisms and key factors involved in this process, we have examined changes in expression of genes involved in both intrinsic and extrinsic signaling pathways that trigger apoptosis in the mutant spermatocytes. Our results show that both pathways are involved, and that the factors involved in the intrinsic pathway were expressed earlier than those involved in the extrinsic pathway...
2017: PloS One
https://www.readbyqxmd.com/read/28296964/correction-scaffold-functions-of-14-3-3-adaptors-in-b-cell-immunoglobulin-class-switch-dna-recombination
#8
Tonika Lam, Lisa M Thomas, Clayton A White, Guideng Li, Egest J Pone, Zhenming Xu, Paolo Casali
[This corrects the article DOI: 10.1371/journal.pone.0080414.].
2017: PloS One
https://www.readbyqxmd.com/read/28288693/uterine-epithelioid-leiomyosarcoma-with-c-kit-expression-and-ywhae-gene-rearrangement-a-case-report-of-a-diagnostic-pitfall-of-uterine-sarcoma
#9
Terufumi Kubo, Shintaro Sugita, Ryuichi Wada, Noriaki Kikuchi, Masahiro Iwasaki, Yumika Ito, Taro Sugawara, Hiromi Fujita, Makoto Emori, Ryoichi Tanaka, Hiroshi Hirano, Tsuyoshi Saito, Tadashi Hasegawa
BACKGROUND: Uterine sarcoma is a rare tumor that is often difficult to classify based on morphological and immunohistochemical analysis alone. Limited access to molecular biological analysis in routine practice would hinder making a definitive diagnosis. CASE PRESENTATION: In this report, we describe a case of a mesenchymal tumor arising from the uterine cervix in a 52-year-old woman. From microscopic morphology of the resected specimen, epithelioid leiomyosarcoma, high-grade endometrial stromal sarcoma, or uterine gastrointestinal stromal tumor (GIST) were considered as differential diagnoses...
March 14, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28282625/phosphorylation-of-the-regulatory-domain-of-human-tyrosine-hydroxylase-1-monitored-using-non-uniformly-sampled-nmr
#10
Petr Louša, Hana Nedozrálová, Erik Župa, Jiří Nováček, Jozef Hritz
Human tyrosine hydroxylase 1 (hTH1) activity is regulated by phosphorylation of its regulatory domain (RD-hTH1) and by an interaction with the 14-3-3 protein. The RD-hTH1 is composed of a structured region (66-169) preceded by an intrinsically disordered protein region (IDP, hTH1_65) containing two phosphorylation sites (S19 and S40) which are highly relevant for its increase in activity. The NMR signals of the IDP region in the non-phosphorylated, singly phosphorylated (pS40) and doubly phosphorylated states (pS19_pS40) were assigned by non-uniformly sampled spectra with increased dimensionality (5D)...
January 27, 2017: Biophysical Chemistry
https://www.readbyqxmd.com/read/28279353/small-molecule-stabilization-of-14-3-3-protein-protein-interactions-stimulates-axon-regeneration
#11
Andrew Kaplan, Barbara Morquette, Antje Kroner, SooYuen Leong, Carolin Madwar, Ricardo Sanz, Sara L Banerjee, Jack Antel, Nicolas Bisson, Samuel David, Alyson E Fournier
Damaged central nervous system (CNS) neurons have a poor ability to spontaneously regenerate, causing persistent functional deficits after injury. Therapies that stimulate axon growth are needed to repair CNS damage. 14-3-3 adaptors are hub proteins that are attractive targets to manipulate cell signaling. We identify a positive role for 14-3-3s in axon growth and uncover a developmental regulation of the phosphorylation and function of 14-3-3s. We show that fusicoccin-A (FC-A), a small-molecule stabilizer of 14-3-3 protein-protein interactions, stimulates axon growth in vitro and regeneration in vivo...
March 8, 2017: Neuron
https://www.readbyqxmd.com/read/28278113/clinical-and-laboratory-features-of-14-young-chinese-probable-scjd-patients
#12
Qi Shi, Kang Xiao, Cao Chen, Wei Zhou, Chen Gao, Jing Wang, Bao-Yun Zhang, Yuan Wang, Xiao-Ping Dong
Sporadic Creutzfeldt-Jakob disease (sCJD) occurs frequently in the relatively older population, mainly in the groups of 60-69 and 70-79 year-old. Since 2006 when China performed national CJD surveillance, 14 young probable sCJD patients below 40 year-old were identified, counting for 1.93% of all probable sCJD cases. The clinical features of young probable sCJD cases, including the onset feature, the presence of sCJD-associated signs and the clinical duration, are indistinguishable from those of older patients...
March 9, 2017: Prion
https://www.readbyqxmd.com/read/28269042/binding-affinity-prediction-of-s-cerevisiae-14-3-3-and-gyf-peptide-recognition-domains-using-support-vector-regression
#13
Volkan Uslan, Huseyin Seker
Proteins interact with other proteins and bio-molecules to carry out biological processes in a cell. Computational models help understanding complex biochemical processes that happens throughout the life of a cell. Domain-mediated protein interaction to peptides one such complex problem in bioinformatics that requires computational predictive models to identify meaningful bindings. In this study, domain-peptide binding affinity prediction models are proposed based on support vector regression. Proposed models are applied to yeast bmh 14-3-3 and syh GYF peptide-recognition domains...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28258766/an-account-of-fungal-14-3-3-proteins
#14
REVIEW
Ravinder Kumar
14-3-3s are a group of relatively low molecular weight, acidic, dimeric, protein(s) conserved from single-celled yeast to multicellular vertebrates including humans. Despite lacking catalytic activity, these proteins have been shown to be involved in multiple cellular processes. Apart from their role in normal cellular physiology, recently these proteins have been implicated in various medical consequences. In this present review, fungal 14-3-3 protein localization, interactions, transcription, regulation, their role in the diverse cellular process including DNA duplication, cell cycle, protein trafficking or secretion, apoptosis, autophagy, cell viability under stress, gene expression, spindle positioning, role in carbon metabolism have been discussed...
February 24, 2017: European Journal of Cell Biology
https://www.readbyqxmd.com/read/28258683/-patient-with-creutzfeld-jakob-disease-a-case-report
#15
Żanna Pastuszak, Kazimierz Tomczykiewicz, Adam Stępień, Renata Piusińska-Macoch, Joanna Klimczuk, Agnieszka Rolewska, Dariusz Galbarczyk
Creutzfeldt-Jakob disease (CJD) is a rare syndrome of central nervous system caused by infectious protein called prion. There are four types of CJD: sporadic (sCJD), familial (fCJD), jatrogenic (jCJD) and variant (vCJD). The most frequent symptoms are rapidly progressing dementia, mioclonias, akinetic mutism and signs of cerebellum dysfunction. In sCJD, MRI often shows high signal intensity in the putamen and caudate nucleus on T2-weighted images while in vCJD pulvinar sign is often observed. 70% patients with CJD often has characteristic generalized periodic sharp wave pattern in electroencephalography...
February 20, 2017: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28258221/quantitative-mapping-of-microtubule-associated-protein-2c-map2c-phosphorylation-and-regulatory-protein-14-3-3-%C3%AE-binding-sites-reveals-key-differences-between-map2c-and-its-homolog-tau
#16
Séverine Jansen, Kateřina Melková, Zuzana Trošanová, Kateřina Hanáková, Milan Zachrdla, Jiři Nováček, Erik Župa, Zbyněk Zdráhal, Jozef Hritz, Lukáš Žídek
Microtubule associated protein 2c (MAP2c) is involved in neuronal development and is less characterized than its homolog Tau, which has various roles in neurodegeneration. Using NMR methods providing single-residue resolution and quantitative comparison, we investigated molecular interactions important for the regulatory roles of MAP2c in microtubule dynamics. We found that MAP2c and Tau significantly differ in the position and kinetics of sites that are phosphorylated by cAMP-dependent protein kinase (PKA), even in highly homologous regions...
March 3, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28254371/the-important-functionality-of-14-3-3-isoforms-in-rice-roots-revealed-by-affinity-chromatography
#17
Zhixing Zhang, Yiping Zhang, Hong Zhao, Fenglian Huang, Zefeng Zhang, Wenxiong Lin
Plant 14-3-3 proteins belong to a large family of proteins involved in numerous physiological processes, and function by binding to phosphorylated client proteins to regulate their function. However, little is known about their regulatory mechanisms in rice root growth. In this study, four 14-3-3 isoforms (GF14b, GF14c, GF14e, GF14f) exhibiting prominent expression profiles in rice roots, were selected for further investigation. Through a pull-down assay using four 14-3-3 isoforms in rice roots, 87 client proteins were identified that are involved in metabolism, protein synthesis and trafficking, energy metabolism, cell structure and growth, and other cellular processes...
February 22, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28248914/creutzfeldt-jakob-disease-presenting-as-stroke-a-case-report-and-systematic-literature-review
#18
REVIEW
Divya K Sharma, Mike Boggild, Annemarie W van Heuven, Richard P White
BACKGROUND: Creutzfeldt-Jacob disease (CJD) is a human prion disease generally characterized by subacute changes in behavior and intellectual function, often followed by ataxia, vision changes, and myoclonus. Ten percent of cases may present atypically, both symptomatically and in respect to initial investigations. METHODS: We report a case of CJD mimicking acute stroke and review all similar cases in the magnetic resonance imaging era reported in English, identified through a PubMed and SCOPUS search...
March 2017: Neurologist
https://www.readbyqxmd.com/read/28236445/the-heidenhain-variant-of-creutzfeldt-jakob-disease-and-concomitant-tau-pathology-a-case-report
#19
Edvard Ehler, Michael Pipka, Alena Meleková, Petra Mandysová, Silvie Johanidesová, Radoslav Matěj, Robert Rusina
The Heidenhain form of Creutzfeldt-Jakob disease (CJD) is a rare CJD variant with predominantly visual symptoms in the early stages. Clinical manifestations of metamorphopsia, hemianopia and Balint's syndrome correlate with the involvement of the posterior cortical regions. A 71-year old healthy and very active man was admitted because of impaired visual acuity, hemianopia, and gait disturbance progressing over one week. MRI found typical cortical hyperintensities in the occipital regions while rhythm slowing and sharp waves were seen in the occipital regions on EEG...
February 10, 2017: Neurologia i Neurochirurgia Polska
https://www.readbyqxmd.com/read/28227256/binding-affinity-prediction-of-s-cerevisiae-14-3-3-and-gyf-peptide-recognition-domains-using-support-vector-regression
#20
Volkan Uslan, Huseyin Seker, Volkan Uslan, Huseyin Seker, Huseyin Seker, Volkan Uslan
Proteins interact with other proteins and bio-molecules to carry out biological processes in a cell. Computational models help understanding complex biochemical processes that happens throughout the life of a cell. Domain-mediated protein interaction to peptides one such complex problem in bioinformatics that requires computational predictive models to identify meaningful bindings. In this study, domain-peptide binding affinity prediction models are proposed based on support vector regression. Proposed models are applied to yeast bmh 14-3-3 and syh GYF peptide-recognition domains...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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