Read by QxMD icon Read

SON protein

Young Cheol Kang, Minuk Son, Sora Kang, Suyeol Im, Ying Piao, Kwang Suk Lim, Min-Young Song, Kang-Sik Park, Yong-Hee Kim, Youngmi Kim Pak
An excess of reactive oxygen species (ROS) relative to the antioxidant capacity causes oxidative stress, which plays a role in the development of Parkinson's disease (PD). Because mitochondria are both sites of ROS generation and targets of ROS damage, the delivery of antioxidants to mitochondria might prevent or alleviate PD. To transduce the antioxidant protein human metallothionein 1A (hMT1A) into mitochondria, we computationally designed a cell-penetrating artificial mitochondria-targeting peptide (CAMP)...
August 17, 2018: Experimental & Molecular Medicine
Peggi M Angel, Kim Norris-Caneda, Richard R Drake
Tryptic peptide imaging is a primary workflow for matrix-assisted laser desorption/ionization imaging mass spectrometry (MALDI IMS) and has led to new information reporting highly multiplexed protein localization. Technological advances within the last few years have produced robust tools for automated spraying of both matrix and enzymes. When combined with high-mass-resolution and high-mass-accuracy instrumentation, studies now generally result in two-dimensional mapping of well over 1,000 peptide peaks. This protocol describes sample preparation, spraying, and application of enzymes and matrices, and MALDI FT-ICR instrumental considerations for two-dimensional mapping of tryptic peptides from fresh-frozen or formalin-fixed, paraffin-embedded tissue sections...
August 16, 2018: Current Protocols in Protein Science
Junshi Yazaki, Mary Galli, Alice Y Kim, Joseph R Ecker
Physical interactions between proteins and other molecules can be evaluated at a proteome scale using protein arrays, a type of high-throughput pulldown assay. We developed a modified in situ protein array known as the nucleic acid programmable protein assay (NAPPA) that allows the screening of thousands of open reading frames (ORFs) at a lower cost, with less labor, and in less time than conventional protein arrays. The HaloTag-NAPPA protein array can efficiently capture proteins expressed in situ on a glass slide using the Halo high-affinity capture tag...
August 14, 2018: Current Protocols in Plant Biology
Huiying Zhao, Ghazaleh Taherzadeh, Yaoqi Zhou, Yuedong Yang
Protein-carbohydrate interaction is essential for biological systems, and carbohydrate-binding proteins (CBPs) are important targets when designing antiviral and anticancer drugs. Due to the high cost and difficulty associated with experimental approaches, many computational methods have been developed as complementary approaches to predict CBPs or carbohydrate-binding sites. However, most of these computational methods are not publicly available. Here, we provide a comprehensive review of related studies and demonstrate our two recently developed bioinformatics methods...
August 14, 2018: Current Protocols in Protein Science
Manish Mishra, Arul J Duraisamy, Sudarshan Bhattacharjee, Renu Kowluru
AIMS: Diabetes increases oxidative stress in the retina, and dysfunctions their mitochondria, accelerating capillary cell apoptosis. A 66kDa adaptor protein, p66Shc, is considered as a sensor of oxidative stress-induced apoptosis. In the pathogenesis of diabetic retinopathy, a progressive disease, ROS production by activation of a small molecular weight G-protein (Rac1)-Nox2 signaling precedes mitochondrial damage. Rac1 activation is facilitated by guanine exchange factors (GEFs), and p66Shc increases Rac1-specific GEF activity of Son of Sevenless (Sos1)...
August 14, 2018: Antioxidants & Redox Signaling
Eun-Young Jang, Yong-Jun Son, Soo-Yeun Park, Ji-Yeon Yoo, Dae-Youn Hwang, Hyean-Cheal Park, Hong-Joo Son
In the present study, silver nanoparticles (SNPs) were synthesised for the first time using Pseudomonas geniculata H10 as reducing and stabilising agents. The synthesis of SNPs was the maximum when the culture supernatant was treated with 2.5 mM AgNO3 at pH 7 and 40°C for 10 h. The SNPs were characterised by field emission scanning electron microscopy-energy-dispersive spectroscopy, transmission electron microscopy, dynamic light scattering, X-ray diffraction and UV-vis spectroscopy. Fourier transform infrared spectroscopy indicated the presence of proteins, suggesting they may have been responsible for the reduction and acted as capping agents...
September 2018: IET Nanobiotechnology
Daniel Feliciano, Jonathon Nixon-Abell, Jennifer Lippincott-Schwartz
Different multicellular organisms undergo cell-cell fusion to form functional syncytia that support specialized functions necessary for proper development and survival. For years, monitoring the structural consequences of this process using live-cell imaging has been challenging due to the unpredictable timing of cell fusion events in tissue systems. Here we present a triggered vesicular stomatitis virus G-protein (VSV-G)-mediated cell-cell fusion assay that can be used to synchronize fusion between cells. This allows the study of cellular changes that occur during cell fusion...
August 13, 2018: Current Protocols in Cell Biology
Hyo-Kyung Pak, Bora Nam, Yoon Kyoung Lee, Yong-Woo Kim, Jin Roh, Jaekyoung Son, Yoo-Sam Chung, Jongseon Choe, Chan-Sik Park
Migration of human plasmablast to the bone marrow is essential for the final differentiation of plasma cells and maintenance of effective humoral immunity. This migration is controlled by CXCL12/CXCR4-mediated activation of the protein kinase AKT. Herein, we show that the CXCL12-induced migration of human plasmablasts is dependent on glucose oxidation. Glucose depletion markedly inhibited plasmablast migration by 67%, and the glucose analog 2-deoxyglucose (2-DG) reduced the migration by 53%; conversely, glutamine depletion did not reduce the migration...
2018: Frontiers in Immunology
Kuangyi Shu, Kai Xu, Fanfan Li, Tao Chen, Jie Liu, Susu Jin, Jingjing Guo, Zhaohua Zhang, Minghua Jiang
OBJECTIVE: To investigate the phenotype and genotype defect characteristics of a Chinese patient with hereditary factor XI deficiency. METHODS: The activated partial thromboplastin time (APTT), prothrombin time (PT), FXI activity (FXI:C) of the proband and his relatives were measured by a clotting method using automatic coagulation analyzer. FXI antigen (FXI:Ag) was assayed by enzyme-linked immunosorbent assay (ELISA). Fifteen exons of the F11 gene were amplified by PCR and sequenced...
August 10, 2018: Zhonghua Yi Xue Yi Chuan Xue za Zhi, Zhonghua Yixue Yichuanxue Zazhi, Chinese Journal of Medical Genetics
In Jun Yeo, Mi Hee Park, Dong Ju Son, Ji Young Kim, Kyoung Tak Nam, Byung Kook Hyun, So Young Kim, Myung Hee Jung, Min Ji Song, Hyung Ok Chun, Tae Hyung Lee, Sang-Bae Han, Jin Tae Hong
Impaired neurogenesis has been associated with several brain disorders, such as Alzheimer's disease (AD) and Parkinson's disease (PD). The role of peroxiredoxin 6 (PRDX6) in neurodegenerative diseases is very controversial. To demonstrate the role of PRDX6 in neurogenesis, we compared the neurogenesis ability of PRDX6-overexpressing transgenic (Tg) mice and wild-type mice and studied the involved molecular mechanisms. We showed that the neurogenesis of neural stem cells (NSCs) and the expression of the marker protein were lower in PRDX6 Tg-mice than in wild-type mice...
August 10, 2018: Molecular Neurobiology
Martino Calamai, Francesco Saverio Pavone
The standard approach to study the activity of proteases consists of lysing cells and measuring the changes in the fluorescence properties of a synthetic substrate after cleavage in vitro. Here, a general protocol that uses a bi-fluorescent chimeric construct of a known substrate protein that follows the proteolytic processing in living cells is described. This approach is useful, in particular, to search for pharmacological conditions altering the cleavage rate of a certain protease, or to investigate the biological factors influencing a certain proteolytic mechanism...
August 7, 2018: Current Protocols in Cell Biology
Alexandra Van Hall-Beauvais, Yi Zhao, Daniel A Urul, Marcus J C Long, Yimon Aye
T-REX (targetable reactive electrophiles and oxidants) enables electrophile targeting in living systems with high spatiotemporal precision and at single-protein-target resolution. T-REX allows functional consequences of individual electrophile signaling events to be directly linked to on-target modifications. T-REX is accomplished by expressing a HaloTagged protein of interest (POI) and introducing a Halo-targetable bioinert photocaged precursor to a reactive electrophilic signal (RES). Light exposure releases the unfettered RES on demand, enabling precision modification of the POI due to proximity...
August 7, 2018: Current Protocols in Chemical Biology
Coralie Croissant, Flora Bouvet, Sisareuth Tan, Anthony Bouter
Many cells possess the ability to repair plasma membrane disruption in physiological conditions. Growing evidence indicates a correlation between membrane repair and many human diseases. For example, a negative correlation is observed in muscle where failure to reseal sarcolemma may contribute to the development of muscular dystrophies. Instead, a positive correlation is observed in cancer cells where membrane repair may be exacerbated during metastasis. Here we describe a protocol that combines laser technology for membrane damage, immunostaining with gold nanoparticles and imaging by fluorescence microscopy and transmission electron microscopy (TEM), which allows the characterization of the molecular machinery involved in membrane repair...
August 7, 2018: Current Protocols in Cell Biology
F C Shenton, S Pyner
Changes in plasma osmolality can drive changes in the output from brain centres known to control cardiovascular homeostasis, such as the paraventricular nucleus of the hypothalamus (PVN). Within the PVN hypotonicity reduces the firing rate of parvocellular neurons, a neuronal pool known to be involved in modulating sympathetic vasomotor tone. Also present in the PVN is the transient receptor potential vanilloid type 4 (TRPV4) ion channel. Activation of TRPV4 within the PVN mimics the reduction in firing rate of the parvocellular neurons but it is unknown if these neurons express the channel...
August 5, 2018: Journal of Comparative Neurology
Motomu Hashimoto, Moritoshi Furu, Wararu Yamamoto, Takanori Fujimura, Ryota Hara, Masaki Katayama, Akira Ohnishi, Kengo Akashi, Shuzo Yoshida, Koji Nagai, Yonsu Son, Hideki Amuro, Toru Hirano, Kosuke Ebina, Ryuji Uozumi, Hiromu Ito, Masao Tanaka, Koichiro Ohmura, Takao Fujii, Tsuneyo Mimori
BACKGROUND: Clinical remission can be maintained after the discontinuation of biological disease-modifying antirheumatic drugs (bDMARDs) in some patients with rheumatoid arthritis (RA) (bDMARD-free remission (BFR)). It is unknown which bDMARD is advantageous for achieving BFR or under which conditions BFR can be considered. This study aimed to determine the factors associated with BFR achievement in clinical practice. METHODS: Patients with RA were enrolled from a Japanese multicenter observational registry...
August 3, 2018: Arthritis Research & Therapy
Richard R Drake, Thomas W Powers, Kim Norris-Caneda, Anand S Mehta, Peggi M Angel
Glycosylation of cell surface, secreted, and circulating proteins is one of the most common types of post-translational modification. These modifications occur most commonly as one of three major classes: N-linked glycosylation on asparagine residues, O-linked glycosylation on serine or threonine residues, or as glycosaminoglycan oligosaccharide polymers on serine. Specifically, for N-linked glycans, an endoglycosidase enzyme, peptide N-glycosidase F (PNGase F), cleaves the attached oligosaccharides between the asparagine and first sugar...
August 3, 2018: Current Protocols in Protein Science
Sang-Heon Park, Jinseol Rhee, Seul-Ki Kim, Jung-Ah Kang, Ji-Sun Kwak, Young-Ok Son, Wan-Su Choi, Sung-Gyoo Park, Jang-Soo Chun
BACKGROUND: We recently demonstrated that BATF, a member of the activator protein-1 (AP-1) family, regulates osteoarthritic cartilage destruction. Here, we explored the roles and regulatory mechanisms of BATF in collagen-induced arthritis (CIA) in mice. METHODS: CIA and K/BxN serum transfer were used to generate inflammatory arthritis models in wild-type (WT) and Batf-/- mice. RA manifestations were determined by examining CIA incidence, clinical score, synovitis, synovial hyperplasia, angiogenesis in inflamed synovium, pannus formation, bone erosion, and cartilage destruction...
August 2, 2018: Arthritis Research & Therapy
Junghoon Kim, Jeong-Soo Im, Chang Hyu Choi, Chul Hyun Park, Jae Ik Lee, Kuk Hui Son, Yoon-Hyeong Choi
One pathophysiological sign of sarcopenia is chronic inflammation. Given that levels of red blood cell distribution width (RDW) are increased in chronic inflammation, we evaluated the association between increased RDW and sarcopenia among adults in the general U. S. population and analyzed data from 11,761 participants from the National Health and Nutrition Examination Survey (NHANES) 1999-2006. Sarcopenia was defined as an appendicular skeletal muscle mass (ASM) divided by weight (%) that was less than one standard deviation (SD) below the mean of young adults...
July 31, 2018: Scientific Reports
Hee Jin Son, Sung Hwa Sohn, Nayoung Kim, Ha-Na Lee, Sun Min Lee, Ryoung Hee Nam, Ji Hyun Park, Chin-Hee Song, Eun Shin, Hee Young Na, Joo Sung Kim, Dong Ho Lee, Young-Joon Surh
Purpose: This study demonstrates that estradiol downregulates inflammation and inhibits colorectal cancer (CRC) development in azoxymethane/dextran sulfate sodium (AOM/DSS) mouse model. Materials and Methods: AOM/DSS-treated male and female mice were sacrificed at weeks 2, 10, and 16, to assess estrogen effects on colitis and carcinogenesis. Macroscopic and histologic severity of colitis and Western blot and quantitative real-time polymerase chain reaction were evaluated, to measure inflammatory mediators and cytokines...
August 1, 2018: Cancer Research and Treatment: Official Journal of Korean Cancer Association
Jun Seok Son, Song Ah Chae, Eric D Testroet, Min Du, Hyung-Pil Jun
Myokines, known to mediate metabolism, inflammation, and other pathophysiological conditions, have been widely investigated, including myokines induced by exercise. However, among published literature, there is substantial inconsistency in the quantification of exercise-induced myokines. Here, we summarized and compared published data regarding the effects of exercise on commonly studied myokines including apelin, Brain-derived neurotrophic factor (BDNF), Interleukin-15 (IL-15), irisin, and Secreted protein acidic and rich in cysteine (SPARC) during the last decade and discussed possible reasons for discrepancy in these reports...
January 2018: Expert Review of Endocrinology & Metabolism
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"