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https://www.readbyqxmd.com/read/29453315/autophagic-flux-is-regulated-by-interaction-between-the-c-terminal-domain-of-patched1-and-atg101
#1
Lucy X Chen, Cintli C Morales-Alcala, Natalia A Riobo-Del Galdo
The Hedgehog (Hh) receptor Patched1 (PTCH1) is a well-known tumor suppressor that in its active form represses Smoothened (SMO) activity, inhibits proliferation, and induces apoptosis. The cytoplasmic C-terminal domain (CTD) regulates PTCH1 turnover and nucleates a pro-apoptotic complex. In this study, it was mechanistically determined that Autophagy Related 10 (ATG101), essential for mammalian autophagy, physically interacts with the CTD of PTCH1 and connects it to the ULK complex, which stimulates the autophagy machinery in response to changes in nutrient availability...
February 16, 2018: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/29444801/widespread-and-precise-reprogramming-of-yeast-protein-genome-interactions-in-response-to-heat-shock
#2
Vinesh Vinayachandran, Rohit Reja, Matthew J Rossi, Bongsoo Park, Lila Rieber, Chitvan Mittal, Shaun Mahony, B Franklin Pugh
Gene expression is controlled by a variety of proteins that interact with the genome. Their precise organization and mechanism of action at every promoter remains to be worked out. To better understand the physical interplay among genome-interacting proteins, we examined the temporal binding of a functionally diverse subset of these proteins: nucleosomes (H3), H2AZ (Htz1), SWR (Swr1), RSC (Rsc1, Rsc3, Rsc58, Rsc6, Rsc9, Sth1), SAGA (Spt3, Spt7, Ubp8, Sgf11), Hsf1, TFIID (Spt15/TBP and Taf1), TFIIB (Sua7), TFIIH (Ssl2), FACT (Spt16), Pol II (Rpb3), and Pol II carboxyl-terminal domain (CTD) phosphorylation at serines 2, 5, and 7...
February 14, 2018: Genome Research
https://www.readbyqxmd.com/read/29430817/the-c-terminal-cytosolic-domain-of-the-human-zinc-transporter-znt8-and-its-diabetes-risk-variant
#3
Douglas S Parsons, Christer Hogstrand, Wolfgang Maret
A significant aspect of the control of cellular zinc in eukarya is its subcellular re-distribution. One of the four human vesicular zinc transporters, ZnT8, supplies the millimolar zinc concentrations of insulin granules in pancreatic β-cells, affecting insulin processing, crystallisation, and secretion. ZnT8 has a transmembrane and a C-terminal cytosolic domain; the latter has important functions and purportedly mediates protein-protein interactions, senses cytosolic zinc, and/or channels zinc to the transport site in the transmembrane domain...
February 11, 2018: FEBS Journal
https://www.readbyqxmd.com/read/29426639/imbalance-of-dietary-nutrients-and-the-associated-differentially-expressed-genes-and-pathways-may-play-important-roles-in-juvenile-kashin-beck-disease
#4
Yujie Ning, Xi Wang, Pan Zhang, Skalny V Anatoly, N Tejo Prakash, Cheng Li, Rong Zhou, Mikko Lammi, Feng Zhang, Xiong Guo
BACKGROUND: Kashin-Beck disease (KBD) is a childhood-onset endemic osteoarthropathy in China. Nutrients including trace elements may play active roles in the development of KBD. OBJECTIVE: This study aimed to estimate the nutrient intakes of children in endemic areas and to identify the imbalanced nutrients associated differentially expressed genes in the juvenile patients with KBD. METHODS: In this cross-sectional study, a consecutive 3 day 24 h semi-quantitative dietary retrospect questionnaire was conducted to estimate the daily nutrient intakes of children using CDGSS 3...
February 6, 2018: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/29420550/spectrum-of-interstitial-lung-diseases-at-a-tertiary-center-in-a-developing-country-a-study-of-803-subjects
#5
Sahajal Dhooria, Ritesh Agarwal, Inderpaul Singh Sehgal, Kuruswamy Thurai Prasad, Mandeep Garg, Amanjit Bal, Ashutosh Nath Aggarwal, Digambar Behera
BACKGROUND: The spectrum of interstitial lung diseases (ILDs) have mainly been reported from the developed countries; data from developing countries is sparse and conflicting. The aim of this study is to describe the distribution of various ILDs from a developing country. METHODS: This is an analysis of prospectively collected clinical, radiological and histological data of consecutive subjects (age >12 years) with ILDs from a single tertiary care medical center...
2018: PloS One
https://www.readbyqxmd.com/read/29419347/the-prognosis-of-pulmonary-arterial-hypertension-associated-with-primary-sj%C3%A3-gren-s-syndrome-a-cohort-study
#6
Z Liu, X Yang, Z Tian, J Qian, Q Wang, J Zhao, C Huang, Y Liu, X Guo, H Wang, J Lai, M Li, Y Zhao, X Zeng
Pulmonary arterial hypertension (PAH) is a rare and severe complication of primary Sjögren's syndrome (pSS). Cohort studies indicate that the underlying diseases of PAH associated with connective tissue disease (CTD-PAH) in Asian countries are different from that in the United States and in Europe. This study investigated the clinical characteristics, survival, and prognostic factors of pSS-PAH in Chinese patients. We enrolled 29 patients with pSS-PAH who visited our referral center during August 2007 and May 2015...
January 1, 2018: Lupus
https://www.readbyqxmd.com/read/29396939/creatine-transporter-deficiency-in-two-brothers-with-autism-spectrum-disorder
#7
Halil Ibrahim Aydin
BACKGROUND: Creatine transporter deficiency (CTD) is a treatable, X-linked, inborn error of metabolism. CASE CHARACTERISTICS: Two brothers with autism spectrum disorder were diagnosed with CTD at the ages of 17 and 12 years. Both were found to have a previously reported hemizygous p.408delF (c.1216_1218delTTC) deletion mutation. OUTCOME: Both patients were given creatine monohydrate, L-arginine, L-glycine and S-adenosylmethionine, which partially improved the behavioral problems...
January 15, 2018: Indian Pediatrics
https://www.readbyqxmd.com/read/29395063/the-augmented-r-loop-is-a-unifying-mechanism-for-myelodysplastic-syndromes-induced-by-high-risk-splicing-factor-mutations
#8
Liang Chen, Jia-Yu Chen, Yi-Jou Huang, Ying Gu, Jinsong Qiu, Hao Qian, Changwei Shao, Xuan Zhang, Jing Hu, Hairi Li, Shunmin He, Yu Zhou, Omar Abdel-Wahab, Dong-Er Zhang, Xiang-Dong Fu
Mutations in several general pre-mRNA splicing factors have been linked to myelodysplastic syndromes (MDSs) and solid tumors. These mutations have generally been assumed to cause disease by the resultant splicing defects, but different mutations appear to induce distinct splicing defects, raising the possibility that an alternative common mechanism is involved. Here we report a chain of events triggered by multiple splicing factor mutations, especially high-risk alleles in SRSF2 and U2AF1, including elevated R-loops, replication stress, and activation of the ataxia telangiectasia and Rad3-related protein (ATR)-Chk1 pathway...
February 1, 2018: Molecular Cell
https://www.readbyqxmd.com/read/29387923/association-between-histological-features-of-epicardial-adipose-tissue-and-coronary-plaque-characteristics-on-computed-tomography-angiography
#9
Atsuhiro Senoo, Toshiro Kitagawa, Shinya Torimaki, Hideya Yamamoto, Kazuhiro Sentani, Shinya Takahashi, Yumiko Kubo, Wataru Yasui, Taijiro Sueda, Yasuki Kihara
The means by which epicardial adipose tissue (EAT) could influence coronary plaque progression biologically remain unclear. We investigated the association between the histological findings of EAT and coronary plaque characteristics assessed by coronary computed tomography angiography (CCTA). We enrolled 34 patients in whom one or more coronary plaques containing non-calcified components were detected on CCTA before cardiac surgery [coronary artery bypass graft (CABG) or non-CABG]. We evaluated visceral adipose tissue (VAT) area, EAT volume, and coronary plaque characteristics including minimum computed tomography density (CTD) and vascular Remodeling Index (RI)...
January 31, 2018: Heart and Vessels
https://www.readbyqxmd.com/read/29384270/cognitive-deficits-and-increases-in-creatine-precursors-in-a-brain-specific-knockout-of-the-creatine-transporter-gene-slc6a8
#10
Kenea C Udobi, Amanda N Kokenge, Emily R Hautman, Gabriela Ullio, Julie Coene, Michael T Williams, Charles V Vorhees, Aloïse Mabondzo, Matthew R Skelton
Creatine transporter (CrT; SLC6A8) deficiency (CTD) is an X-linked disorder characterized by severe cognitive deficits, impairments in language, and an absence of brain creatine (Cr). In a previous study, we generated floxed Slc6a8 (Slc6a8flox ) mice to create ubiquitous Slc6a8 knockout (Slc6a8-/y ) mice. Slc6a8-/y mice lacked whole body Cr and exhibited cognitive deficits. While Slc6a8-/y mice have a similar biochemical phenotype to CTD patients, they also showed a reduction in size and reductions in swim speed that may have contributed to the observed deficits...
January 31, 2018: Genes, Brain, and Behavior
https://www.readbyqxmd.com/read/29381156/korean-nursing-students-acquisition-of-evidence-based-practice-and-critical-thinking-skills
#11
Sang Suk Kim, Eun Joo Kim, Ji Young Lim, Geun Myun Kim, Hee Chong Baek
BACKGROUND: Evidence-based practice (EBP) is essential for enhancing nurses' quality of care. We identified Korean nursing students' practices, attitudes, and knowledge concerning EBP, as well as their critical thinking disposition (CTD). METHOD: The EBP Questionnaire (EBPQ) was administered to a convenience sample of 266 nursing students recruited from four nursing schools in Seoul and its metropolitan area. RESULTS: Average EBPQ and CTD total scores were 4...
January 1, 2018: Journal of Nursing Education
https://www.readbyqxmd.com/read/29360236/the-nmr-solution-structure-of-mycobacterium-tuberculosis-f-atp-synthase-subunit-%C3%AE%C2%B5-provides-new-insight-into-energy-coupling-inside-the-rotary-engine
#12
Shin Joon, Ragunathan Priya, Sundararaman Lavanya, Wilson Nartey, Subhashri Kundu, Malathy Sony Subramanian Manimekalai, Nebojša Bogdanović, Thomas Dick, Gerhard Grüber
Mycobacterium tuberculosis (Mt) F1 FO ATP synthase (α3 :β3 :γ:δ:ε:a:b:b':c9 ) is essential for the viability of growing and non-growing persister cells of the pathogen. Here we present the first NMR solution structure of Mtε, revealing an N-terminal β-barrel domain (NTD) and a C-terminal domain (CTD) composed of a helix-loop-helix with helix 1 and -2 being shorter compared to their counterparts in other bacteria. The C-terminal amino acids are oriented towards the NTD, forming a domain-domain interface between the NTD and CTD...
January 23, 2018: FEBS Journal
https://www.readbyqxmd.com/read/29353130/serum-mir-1181-and-mir-4314-associated-with-ovarian-cancer-mirna-microarray-data-analysis-for-a-pilot-study
#13
Lihong Ruan, Yuanyuan Xie, Fangmei Liu, Xuehua Chen
OBJECTIVE: This study aims to identify serum microRNAs (miRNAs) related to ovarian cancer. STUDY DESIGN: MiRNA profiling data (GSE79943) were generated from the Gene Expression Omnibus, including 3 serum samples from healthy individuals and 4/3/16/6 serum samples from patients with ovarian cancer stage I/II/III/IV. Differentially expressed miRNAs (DEmiRNAs) were identified between controls and ovarian cancer stage I/II/III/IV by using limma package (p-value <0...
January 9, 2018: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/29351546/accessing-an-expanded-exposure-science-module-at-the-comparative-toxicogenomics-database
#14
Cynthia J Grondin, Allan Peter Davis, Thomas C Wiegers, Jolene A Wiegers, Carolyn J Mattingly
The Comparative Toxicogenomics Database (CTD; http://ctdbase.org) is a free resource that provides manually curated information on chemical, gene, phenotype, and disease relationships to advance understanding of the effect of environmental exposures on human health. Four core content areas are independently curated: chemical-gene interactions, chemical-disease and gene-disease associations, chemical-phenotype interactions, and environmental exposure data (e.g., effects of chemical stressors on humans). Since releasing exposure data in 2015, we have vastly increased our coverage of chemicals and disease/phenotype outcomes; greatly expanded access to exposure content; added search capability by stressors, cohorts, population demographics, and measured outcomes; and created user-specified displays of content...
January 18, 2018: Environmental Health Perspectives
https://www.readbyqxmd.com/read/29334491/a-randomized-titrate-to-target-study-comparing-fixed-dose-combinations-of-azilsartan-medoxomil-and-chlorthalidone-with-olmesartan-and-hydrochlorothiazide-in-stage-2-systolic-hypertension
#15
William C Cushman, George L Bakris, William B White, Michael A Weber, Domenic Sica, Andrew Roberts, Eric Lloyd, Stuart Kupfer
BACKGROUND: Azilsartan medoxomil (AZL-M), an angiotensin II receptor blocker, has been developed in fixed-dose combinations (FDCs) with chlorthalidone (CTD). OBJECTIVE/METHODS: We compared FDCs of AZL-M/CTD 20/12.5 mg once daily titrated to 40/25 mg if needed or AZL-M/CTD 40/12.5 mg once daily titrated to 80/25 mg if needed with an olmesartan medoxomil (OLM)-hydrochlorothiazide (HCTZ) 20/12.5 mg FDC once daily titrated to 40/25 mg if needed in a randomized, double-blind, 8-week study of 1085 participants with clinic SBP 160-190 mmHg and DBP 119 mmHg or less...
January 13, 2018: Journal of Hypertension
https://www.readbyqxmd.com/read/29329291/ovule-identity-mediated-by-pre-mrna-processing-in-arabidopsis
#16
Encarnación Rodríguez-Cazorla, Samanta Ortuño-Miquel, Héctor Candela, Lindsay J Bailey-Steinitz, Martin F Yanofsky, Antonio Martínez-Laborda, Juan-José Ripoll, Antonio Vera
Ovules are fundamental for plant reproduction and crop yield as they are the precursors of seeds. Therefore, ovule specification is a critical developmental program. In Arabidopsis thaliana, ovule identity is redundantly conferred by the homeotic D-class genes SHATTERPROOF1 (SHP1), SHP2 and SEEDSTICK (STK), phylogenetically related to the MADS-domain regulatory gene AGAMOUS (AG), essential in floral organ specification. Previous studies have shown that the HUA-PEP activity, comprised of a suite of RNA-binding protein (RBP) encoding genes, regulates AG pre-mRNA processing and thus flower patterning and organ identity...
January 12, 2018: PLoS Genetics
https://www.readbyqxmd.com/read/29323497/multi-funnel-landscape-of-the-fold-switching-protein-rfah-ctd
#17
Nathan A Bernhardt, Ulrich H E Hansmann
Proteins such as the transcription factor RfaH can change biological function by switching between distinct three-dimensional folds. RfaH regulates transcription if the C-terminal domain folds into a double helix bundle, and promotes translation when this domain assumes a β-barrel form. This fold-switch has been also observed for the isolated domain, dubbed by us RfaH-CTD, and is studied here with a variant of the RET approach recently introduced by us. We use the enhanced sampling properties of this technique to map the free energy landscape of RfaH-CTD and to propose a mechanism for the conversion process...
January 11, 2018: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/29320736/the-rna-polymerase-ii-factor-rpap1-is-critical-for-mediator-driven-transcription-and-cell-identity
#18
Cian J Lynch, Raquel Bernad, Isabel Calvo, Sandrina Nóbrega-Pereira, Sergio Ruiz, Nuria Ibarz, Ana Martinez-Val, Osvaldo Graña-Castro, Gonzalo Gómez-López, Eduardo Andrés-León, Vladimir Espinosa Angarica, Antonio Del Sol, Sagrario Ortega, Oscar Fernandez-Capetillo, Enrique Rojo, Javier Munoz, Manuel Serrano
The RNA polymerase II-associated protein 1 (RPAP1) is conserved across metazoa and required for stem cell differentiation in plants; however, very little is known about its mechanism of action or its role in mammalian cells. Here, we report that RPAP1 is essential for the expression of cell identity genes and for cell viability. Depletion of RPAP1 triggers cell de-differentiation, facilitates reprogramming toward pluripotency, and impairs differentiation. Mechanistically, we show that RPAP1 is essential for the interaction between RNA polymerase II (RNA Pol II) and Mediator, as well as for the recruitment of important regulators, such as the Mediator-specific RNA Pol II factor Gdown1 and the C-terminal domain (CTD) phosphatase RPAP2...
January 9, 2018: Cell Reports
https://www.readbyqxmd.com/read/29320699/lret-determination-of-molecular-distances-during-ph-gating-of-the-mammalian-inward-rectifier-kir1-1b
#19
Mikheil Nanazashvili, Jorge E Sánchez-Rodríguez, Ben Fosque, Francisco Bezanilla, Henry Sackin
Gating of the mammalian inward rectifier Kir1.1 at the helix bundle crossing (HBC) by intracellular pH is believed to be mediated by conformational changes in the C-terminal domain (CTD). However, the exact motion of the CTD during Kir gating remains controversial. Crystal structures and single-molecule fluorescence resonance energy transfer of KirBac channels have implied a rigid body rotation and/or a contraction of the CTD as possible triggers for opening of the HBC gate. In our study, we used lanthanide-based resonance energy transfer on single-Cys dimeric constructs of the mammalian renal inward rectifier, Kir1...
January 9, 2018: Biophysical Journal
https://www.readbyqxmd.com/read/29317441/chronic-tic-disorders-in-children-with-adhd
#20
William Poh, Jonathan M Payne, Alisha Gulenc, Daryl Efron
OBJECTIVE: To examine in a community-based cohort: (1) the prevalence of chronic tic disorder (CTD) in children with attention-deficit/hyperactivity disorder (ADHD) compared with non-ADHD controls at ages 7 and 10; and (2) the additional psychiatric and functional burden of CTD in children with ADHD. METHODS: Children aged 6-8 years with ADHD (n=179) and controls (n=212) were recruited through 43 Victorian schools using parent and teacher screening surveys (Conners 3 ADHD Index), followed by case confirmation (Diagnostic Interview Schedule for Children-IV (DISC-IV))...
January 9, 2018: Archives of Disease in Childhood
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