keyword
MENU ▼
Read by QxMD icon Read
search

Non structural protein 3

keyword
https://www.readbyqxmd.com/read/29784964/high-speed-photothermal-off-resonance-atomic-force-microscopy-reveals-assembly-routes-of-centriolar-scaffold-protein-sas-6
#1
Adrian P Nievergelt, Niccolò Banterle, Santiago H Andany, Pierre Gönczy, Georg E Fantner
The self-assembly of protein complexes is at the core of many fundamental biological processes 1 , ranging from the polymerization of cytoskeletal elements, such as microtubules 2 , to viral capsid formation and organelle assembly 3 . To reach a comprehensive understanding of the underlying mechanisms of self-assembly, high spatial and temporal resolutions must be attained. This is complicated by the need to not interfere with the reaction during the measurement. As self-assemblies are often governed by weak interactions, they are especially difficult to monitor with high-speed atomic force microscopy (HS-AFM) due to the non-negligible tip-sample interaction forces involved in current methods...
May 21, 2018: Nature Nanotechnology
https://www.readbyqxmd.com/read/29783188/%C3%AE-pyrone-compounds-flavonoids-and-maltol-glucoside-derivatives-from-herniaria-glabra-l-collected-in-the-ternopil-region-of-the-ukraine
#2
Solomiia Kozachok, Łukasz Pecio, Joanna Kolodziejczyk-Czepas, Svitlana Marchyshyn, Pawel Nowak, Jarosław Mołdoch, Wiesław Oleszek
The phytochemical investigation of the whole plant extracts of Herniaria glabra L. (Caryophyllaceae) led to the identification and isolation of four known flavonoids, one known and three undescribed maltol derivatives, and benzyl β-gentiobioside. The structures were established by extensive 1D and 2D NMR spectroscopic analyses, as well as HRESIMS data. For the first time in Herniaria genus, as well as in Caryophylaceae family the presence of apiorutin {quercetin 3-O-[(D-apio-β-d-furanosyl-(1 → 2)-O-[-α-l-rhamnopyranosyl-(1 → 6)]-β-d-glucopyranoside]} and licoagroside B {maltol 3-O-[6-O-(3-hydroxy-3-methylglutaroyl)]-β-d-glucopyranoside} were revealed...
May 18, 2018: Phytochemistry
https://www.readbyqxmd.com/read/29782986/antiglycation-study-of-hmg-r-inhibitors-and-tocotrienol-against-glycated-bsa-and-ldl-a-comparative-study
#3
Rabia Nabi, Sahir Sultan Alvi, Rizwan Khan, Shafeeque Ahmad, Saheem Ahmad, M Salman Khan
Non-enzymatic glycation mediated advanced glycation end products (AGEs) generation results in the pathogenesis of diabetic complications and atherosclerotic cardiovascular disease (ASCVD) which is greatly influenced by 3-hydroxy-3-methyl-glutaryl Co-A reductase (HMG-R) activity. HMG-R inhibitors, statins, are well known for reducing mortality and morbidity of ASCVD in patients with diabetes due to their pleiotropic effects independent of cholesterol lowering. Due to distinct chemical structures, various statins may play important role in the inhibition of AGEs mediated pathologies...
May 18, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29769321/lectin-mediated-binding-and-sialoglycans-of-porcine-surfactant-protein-d-synergistically-neutralize-influenza-a-virus
#4
Martin van Eijk, Michael J Rynkiewicz, Kshitij Khatri, Nancy Leymarie, Joseph Zaia, Mitchell R White, Kevan L Hartshorn, Tanya R Cafarella, Irma Van Die, Martin Hessing, Barbara A Seaton, Henk P Haagsman
Innate immunity is critical in the early containment of influenza A virus (IAV) infection, and surfactant protein D (SP-D) plays a crucial role in the pulmonary defense against IAV. In pigs, which are important intermediate hosts during the generation of pandemic IAVs, SP-D uses its unique carbohydrate recognition domain (CRD) to interact with IAV. An N-linked CRD-glycosylation provides interactions with the sialic acid binding site of IAV, and a tripeptide loop at the lectin binding site facilitates enhanced interactions with IAV glycans...
May 16, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29767246/dnajc3-mutation-in-thai-familial-type-2-diabetes-mellitus
#5
Sirikul Kulanuwat, Watip Tangjittipokin, Prapaporn Jungtrakoon, Chutima Chanprasert, Jatuporn Sujjitjoon, Ninareeman Binnima, Pa-Thai Yenchitsomanus, Nattachet Plengvidhya
Type 2 diabetes mellitus (T2D) is a heterogeneous disease, with certain cases presenting an autosomal dominant type. The rare coding variants of disease‑causing genes in T2D remain mostly unclear. The present study aimed to identify the disease‑causing gene conducting whole exome sequencing in a Thai T2D family with an autosomal dominant transmission of T2D with no evidence of mutations in known maturity‑onset diabetes of the young (MODY) genes. Candidate variants were selected according to certain criteria of mutation prediction programs, followed by segregation analysis with diabetes in the family...
May 14, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29765910/a-promising-ifn-deficient-system-to-manufacture-ifn-sensitive-influenza-vaccine-virus
#6
Can Chen, Wenhui Fan, Jing Li, Weinan Zheng, Shuang Zhang, Limin Yang, Di Liu, Wenjun Liu, Lei Sun
Interferon (IFN)-sensitive and replication-incompetent influenza viruses are likely to be the alternatives to inactivated and attenuated virus vaccines. Some IFN-sensitive influenza vaccine candidates with modified non-structural protein 1 (NS1) are highly attenuated in IFN-competent hosts but induce robust antiviral immune responses. However, little research has been done on the manufacturability of these IFN-sensitive vaccine viruses. Here, RIG-I-knockout 293T cells were used to package the IFN-sensitive influenza A/WSN/33 (H1N1) virus expressing the mutant NS1 R38A/K41A...
2018: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/29763309/characterization-and-structural-analysis-of-a-novel-exo-type-enzyme-acting-on-%C3%AE-1-2-glucooligosaccharides-from-parabacteroides-distasonis
#7
Hisaka Shimizu, Masahiro Nakajima, Akimasa Miyanaga, Yuta Takahashi, Nobukiyo Tanaka, Kaito Kobayashi, Naohisa Sugimoto, Hiroyuki Nakai, Hayao Taguchi
β-1,2-Glucan is a polysaccharide produced mainly by some Gram-negative bacteria as a symbiosis and infectious factor. We recently identified endo-β-1,2-glucanase from Chitinophaga pinensis ( CpSGL) as an enzyme comprising a new family. Here, we report the characteristics and crystal structure of a CpSGL homolog from Parabacteroides distasonis, an intestinal bacterium (BDI_3064 protein), which exhibits distinctive properties of known β-1,2-glucan-degrading enzymes. BDI_3064 hydrolyzed linear β-1,2-glucan and β-1,2-glucooligosaccharides with degrees of polymerization (DP) of 4 or more to produce sophorose specifically, but did not hydrolyze cyclic β-1,2-glucan...
May 15, 2018: Biochemistry
https://www.readbyqxmd.com/read/29763304/synthesis-structure-activity-relationships-and-preclinical-evaluation-of-heteroaromatic-amides-and-1-3-4-oxadiazole-derivatives-as-5-ht4-receptor-partial-agonists
#8
Ramakrishna Nirogi, Abdul Rasheed Mohammed, Anil K Shinde, Shankar Reddy Gagginapally, Durga Malleshwari Kancharla, Vanaja Reddy Middekadi, Narsimha Bogaraju, Srinivasa Rao Ravella, Pooja Singh, Sumit Raosaheb Birangal, Ramkumar Subramanian, Raghava Choudary Palacharla, Vijay Benade, Nageswararao Muddana, Pradeep Jayarajan
Alzheimer's disease (AD) is a neurodegenerative disorder which has a higher prevalence and incidence in people older than 60 years. The need for improved AD therapies is unmet as the current therapies are symptomatic with modest efficacy. The 5-HT4 receptor (5-HT4R) partial agonists offer both symptomatic and disease modifying treatment as they shift amyloid precursor protein (APP) processing from amyloidogenic to non-amyloidogenic pathway by activating α-secretase enzyme. In addition, they also offer symptomatic treatment by increasing neurotransmitter acetylcholine levels in the brain...
May 15, 2018: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29761601/postnatal-development-of-cholinergic-input-to-the-thalamic-reticular-nucleus-of-the-mouse
#9
Guela Sokhadze, Peter Whitney Campbell, William Guido
The thalamic reticular nucleus (TRN), a shell-like structure comprised of GABAergic neurons, gates signal transmission between thalamus and cortex. While TRN is innervated by axon collaterals of thalamocortical and corticothalamic neurons, other ascending projections modulate activity during different behavioral states such as attention, arousal, and sleep-wake cycles. One of the largest arise from cholinergic neurons of the basal forebrain and brainstem. Despite its integral role, little is known about how or when cholinergic innervation and synapse formation occurs...
May 14, 2018: European Journal of Neuroscience
https://www.readbyqxmd.com/read/29761425/genistein-has-the-function-of-alleviating-and-treating-disseminated-intravascular-coagulation-caused-by-lipopolysaccharide
#10
Xueqin Chen, Jingyi Tan, Mengqi Yang, Zhi-Kai Liao, Cheng Lu, Youwei Huang, Liang-Cai Wu
Symptoms of disseminated intravascular coagulation (DIC) include thromboembolism, acute attrition bleeding and multiple organ failure. Genistein isolated from leguminous plants has been shown to be effective in oxidation resistance and tumor inhibition. The present study was designed to evaluate the therapeutic effects of genistein in DIC and preliminarily discuss the mechanisms regarding the anti-inflammatory and anticoagulant effect of genistein. Swiss mice were randomly divided into the following groups-(1) lipopolysaccharide (LPS), (2) genistein, (3) dimethyl sulfoxide (DMSO, the non-major solvent component of genistein), (4) DMSO + LPS, (5) saline control group, and (6) heparin control group...
May 14, 2018: Journal of Natural Medicines
https://www.readbyqxmd.com/read/29755438/caspase-3-inhibition-attenuates-the-cytopathic-effects-of-ev71-infection
#11
Fengmei Song, Xiaoyan Yu, Ting Zhong, Zengyan Wang, Xiangling Meng, Zhaolong Li, Shuxia Zhang, Wenbo Huo, Xin Liu, Yahong Zhang, Wenyan Zhang, Jinghua Yu
Previous studies demonstrate that human enterovirus 71 (EV71), a primary causative agent for hand, foot, and mouth disease, activates caspase-3 through the non-structural viral 3C protein to induce host cell apoptosis; however, until now it was unclear how 3C activates caspase-3 and how caspase-3 activation affects viral production. Our results demonstrate that 3C binds caspase-8 and caspase-9 but does not directly bind caspase-3 to activate them, and that the proteolytic activity of 3C is required by the activation of caspase-8, caspase-9, and caspase-3...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29749386/lantibiotic-production-is-a-burden-for-the-producing-staphylococci
#12
Patrick Ebner, Sebastian Reichert, Arif Luqman, Bernhard Krismer, Peter Popella, Friedrich Götz
Lantibiotics are antimicrobial peptides that contain non-proteinogenic amino acids lanthionine and 3-methyllanthionine and are produced by Gram-positive bacteria. Here we addressed the pros and cons of lantibiotic production for its producing strains. Two staphylococcal strains, S. gallinarum Tü3928 and S. epidermidis Tü3298 producing gallidermin and epidermin respectively were selected. In each of these parental strains, the structural genes gdmA and epiA were deleted; all the other biosynthetic genes including the immunity genes were left intact...
May 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29747478/amino-acid-network-clique-analysis-of-protein-mutation-non-additive-effects-a-case-study-of-lysozme
#13
Dengming Ming, Rui Chen, He Huang
Optimizing amino-acid mutations in enzyme design has been a very challenging task in modern bio-industrial applications. It is well known that many successful designs often hinge on extensive correlations among mutations at different sites within the enzyme, however, the underpinning mechanism for these correlations is far from clear. Here, we present a topology-based model to quantitively characterize non-additive effects between mutations. The method is based on the molecular dynamic simulations and the amino-acid network clique analysis...
May 10, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29743070/the-anti-proliferative-and-anti-inflammatory-response-of-copd-airway-smooth-muscle-cells-to-hydrogen-sulfide
#14
Mark M Perry, Bernadett Tildy, Alberto Papi, Paolo Casolari, Gaetano Caramori, Karen Limbert Rempel, Andrew J Halayko, Ian Adcock, Kian Fan Chung
BACKBROUND: COPD is a common, highly debilitating disease of the airways, primarily caused by smoking. Chronic inflammation and structural remodelling are key pathological features of this disease caused, in part, by the aberrant function of airway smooth muscle (ASM). We have previously demonstrated that hydrogen sulfide (H2 S) can inhibit ASM cell proliferation and CXCL8 release, from cells isolated from non-smokers. METHODS: We examined the effect of H2 S upon ASM cells from COPD patients...
May 9, 2018: Respiratory Research
https://www.readbyqxmd.com/read/29736600/investigation-of-sequence-clipping-and-structural-heterogeneity-of-an-hiv-broadly-neutralizing-antibody-by-a-comprehensive-lc-ms-analysis
#15
Vera B Ivleva, Nicole A Schneck, Deepika Gollapudi, Frank Arnold, Jonathan W Cooper, Q Paula Lei
CAP256 is one of the highly potent, broadly neutralizing monoclonal antibodies (bNAb) designed for HIV-1 therapy. During the process development of one of the constructs, an unexpected product-related impurity was observed via microfluidics gel electrophoresis. A panel of complementary LC-MS analyses was applied for the comprehensive characterization of CAP256 which included the analysis of the intact and reduced protein, the middle-up approach, and a set of complementary peptide mapping techniques and verification of the disulfide bonds...
May 7, 2018: Journal of the American Society for Mass Spectrometry
https://www.readbyqxmd.com/read/29735529/global-loss-of-leucine-carboxyl-methyltransferase-1-causes-severe-defects-in-fetal-liver-hematopoiesis
#16
Jocelyn A Lee, Zhengqi Wang, Danielle Sambo, Kevin D Bunting, David C Pallas
Leucine Carboxyl Methyltransferase-1 (LCMT-1)3 methylates the carboxy-terminal leucine α-carboxyl group of the catalytic subunits of the protein phosphatase 2A (PP2A) subfamily of protein phosphatases, PP2Ac, PP4c, and PP6c. LCMT-1 differentially regulates the formation and function of a subset of the heterotrimeric complexes that PP2A and PP4 form with their regulatory subunits. Global LCMT-1 knockout causes embryonic lethality in mice, but LCMT-1 function in development is unknown. In the current study, we analyzed the effects of global LCMT-1 loss on embryonic development...
May 7, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29735104/inhibition-of-interaction-between-epigallocatechin-3-gallate-and-myofibrillar-protein-by-cyclodextrin-derivatives-improves-gel-quality-under-oxidative-stress
#17
Yumeng Zhang, Lin Chen, Yuanqi Lv, Shuangxi Wang, Zhiyao Suo, Xingguang Cheng, Xinglian Xu, Guanghong Zhou, Zhixi Li, Xianchao Feng
High levels of polyphenols can interact with myofibrillar proteins (MPs), causing damage to a MP emulsion gel. In this study, β-cyclodextrins were used to reduce covalent and non-covalent interaction between epigallocatechin-3-gallate (EGCG) and MPs under oxidative stress. The loss of both thiol and free amine groups and the unfolding of MPs caused by EGCG (80 μM/g protein) were significantly prevented by β-cyclodextrins, and the structural stability and solubility were improved. MP emulsion gel treated with EGCG (80 μM/g protein) had the highest cooking loss (68...
June 2018: Food Research International
https://www.readbyqxmd.com/read/29734251/myd88-card11-and-cd79b-oncogenic-mutations-are-rare-events-in-the-indian-cohort-of-de-novo-nodal-diffuse-large-b-cell-lymphoma
#18
Vaishali Aggarwal, Ashim Das, Amanjit Bal, Radhika Srinivasan, Reena Das, Gaurav Prakash, Pankaj Malhotra, Subhash Varma
Diffuse large B-cell lymphoma (DLBCL) has a heterogenous biological behavior, and the western literature has reported activating oncogenic mutations in myeloid differentiation primary response gene 88 (MYD88), in conjunction with B-cell receptor signaling pathway genes, CARD11 and CD79B as the driving force for activating the NF-κB pathway implicated in the pathogenesis of DLBCL. The mutation profile of MYD88 genes was evaluated by Sanger sequencing in a cohort of 97 patients [DLBCL (N=55), non-DLBCL lymphomas (N=30), reactive lymphadenopathy (N=10), and 2 cases of lymphoplasmacytic lymphoma (positive control)]...
May 4, 2018: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/29730439/a-metadynamic-approach-to-understand-the-recognition-mechanism-of-the-histone-h3-tail-with-the-atrx-add-domain
#19
Radha Charan Dash, Angela M Zaino, M Kyle Hadden
The binding affinity between the histone 3 (H3) tail and the ADD domain of ATRX (ATRXADD ) increases with the subsequent addition of methyl groups on lysine 9 on H3. To improve our understanding of how the difference in methylation state affects binding between H3 and the ATRXADD , we adopted a metadynamic approach to explore the recognition mechanism between the two proteins and identify the key intermolecular interactions that mediate this protein-peptide interaction (PPI). The non-methylated H3 peptide is recognized only by the PHD finger of ATRXADD while mono-, di-, and trimethylated H3 is recognized by both the PHD and GATA-like zinc finger of the domain...
May 3, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29730243/docosahexaenoic-acid-regulates-the-formation-of-lipid-rafts-a-unified-view-from-experiment-and-simulation
#20
Stephen R Wassall, Xiaoling Leng, Samuel W Canner, Edward Ross Pennington, Jacob J Kinnun, Andres T Cavazos, Sahil Dadoo, Dylan Johnson, Frederick A Heberle, John Katsaras, Saame Raza Shaikh
Docosahexaenoic acid (DHA, 22:6) is an n-3 polyunsaturated fatty acid (n-3 PUFA) that influences immunological, metabolic, and neurological responses through complex mechanisms. One structural mechanism by which DHA exerts its biological effects is through its ability to modify the physical organization of plasma membrane signaling assemblies known as sphingomyelin/cholesterol (SM/chol)-enriched lipid rafts. Here we studied how DHA acyl chains esterified in the sn-2 position of phosphatidylcholine (PC) regulate the formation of raft and non-raft domains in mixtures with SM and chol on differing size scales...
May 3, 2018: Biochimica et Biophysica Acta
keyword
keyword
54129
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"