Search results for "ssRNA"

showing 4 items of 4 documents

Identification of novel compounds against three targets of SARS CoV-2 coronavirus by combined virtual screening and supervised machine learning.

2021

Coronavirus disease 2019 (COVID-19) is a major threat worldwide due to its fast spreading. As yet, there are no established drugs available. Speeding up drug discovery is urgently required. We applied a workflow of combined in silico methods (virtual drug screening, molecular docking and supervised machine learning algorithms) to identify novel drug candidates against COVID-19. We constructed chemical libraries consisting of FDA-approved drugs for drug repositioning and of natural compound datasets from literature mining and the ZINC database to select compounds interacting with SARS-CoV-2 target proteins (spike protein, nucleocapsid protein, and 2′-o-ribose methyltransferase). Supported by…

0301 basic medicineSimeprevirArtificial intelligencevirusesMERS Middle East Respiratory SyndromeHealth InformaticsBiologyMachine learningcomputer.software_genremedicine.disease_causeAntiviral AgentsArticleWHO World Health OrganizationAUC area under the curve03 medical and health sciences0302 clinical medicinessRNA single-stranded RNA virusmedicineChemotherapyHumansSARS severe acute respiratory syndromeCOVID-19 coronavirus disease 2019CoronavirusNatural productsVirtual screeningACE2 angiotensin converting enzyme 2Drug discoverybusiness.industrySARS-CoV-2COVID-19LBE lowest binding energyFDA Food and Drug AdministrationROC receiver operating characteristicComputer Science ApplicationsHIV human immunodeficiency virusMolecular Docking SimulationDrug repositioning030104 developmental biologyDrug developmentSevere acute respiratory syndrome-related coronavirusParitaprevirInfectious diseasesRespiratory virusArtificial intelligenceSupervised Machine Learningbusinesscomputer030217 neurology & neurosurgeryComputers in biology and medicine
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STABILITY OF A STOCHASTICALLY PERTURBED MODEL OF INTRACELLULAR SINGLE-STRANDED RNA VIRUS REPLICATION

2019

Compared to the replication of double-stranded RNA and DNA viruses, the replication of single-stranded viruses requires the production of a number of intermediate strands that serve as templates for the synthesis of genomic-sense strands. Two theoretical extreme mechanisms for replication for such single-stranded viruses have been proposed; one extreme being represented by the so-called linear stamping machine and the opposite extreme by the exponential growth. Of course, real systems are more complex and examples have been described in which a combination of such extreme mechanisms can also occur: a fraction of the produced progeny resulting from a stamping-machine type of replication that…

92D30 (primary) 34D20 60H10 (secondary)0209 industrial biotechnologyVirus dynamicsDynamical Systems (math.DS)02 engineering and technology03 medical and health scienceschemistry.chemical_compoundMathematical model020901 industrial engineering & automationReplication (statistics)Viral replicationFOS: MathematicsMathematics - Dynamical SystemsViral evolution030304 developmental biologySingle-Stranded RNA51ssRNA virusLyapunov function0303 health sciencesViral mutationsLyapunov methodEcologyApplied MathematicsRNAGeneral MedicineAgricultural and Biological Sciences (miscellaneous)Cell biologyStochastic modelViral replicationchemistryViral evolutionStabilityIntracellularDNAJournal of Biological Systems
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SARS CoV2 infection _The longevity study perspectives

2021

Graphical abstract

MaleAgingssRNA single-stranded RNARFLP restriction fragment length polymorphismHSPs heat shock proteinsReviewPTMs post-translational modificationsSevere Acute Respiratory SyndromeBiochemistryHIV-1 human immunodeficiency virus-1TNF-α tumor necrosis factor-αEC endothelial cells0302 clinical medicineFluAV influenza A virusI insertionMedicineIFN-γ interferon-γDIC disseminated intravascular coagulationPCR Polymerase Chain Reactionmedia_commonAged 80 and overLongevityRBD receptor-binding domainNeurologyLongevity modelMI myocardial infarctionNK natural killerhPIV2 human parainfluenza virus type 2media_common.quotation_subjectResearching genetic basis of resistance and potential pharmacological targetsLongevityDBP diastolic blood pressureNF-Kb nuclear transcription factor kBRANTES regulated upon activation normal T cell expressed and secretedMphi human macrophages03 medical and health sciencesCox 2 cyclooxygenase 2ORF open reading framePT prothrombin timeSettore MED/05 - Patologia ClinicaHumansMolecular BiologyInflammatory genesARDS acute respiratory distress syndromeNO nitric oxideD deletionCpGIs CpG islandsT2DM type 2 diabetes mellitusmedicine.diseaseFDP fibrin degradation products030104 developmental biologySARS CoV2 severe acute respiratory syndrome Coronavirus 2 virusImmunologyBMI body max indexItalian nonagenarians/centenariansRSV respiratory syncytial virusComplication030217 neurology & neurosurgeryMAPK mitogen-activated protein kinaseIP-10 IFN-γ -Inducible Protein 1040301 basic medicineAT1R activity of angiotensin 1 receptorsDCs dentritic cellsSSCP single strand conformation polymorphismACE/DD polymorphism of the angiotensin converting enzymeFGF21 fibroblast growth factor 21TLR4 toll-like receptor 4NAD nicotinamide adenine dinucleotideACE angiotensin-I converting enzymeAT2R activity of angiotensin 2 receptorsCOVID-19 Coronavirus disease 2019Respiratory distressACE2 angiotensin converting enzyme 2MKP-1 mitogen-activated protein kinase phosphatase-1 ()PD protease domainSNP single nucleotide polymorphismEH essential hypertensionTNFR tumor necrosis factor receptorINR international normalized ratio of the prothrombin timePAI-1 plasminogen activator inhibitor-1Ang angiotensinLPS lipopolysaccharideMCP1 monocyte chemoattractant protein-1medicine.symptomaPTT partial thromboplastin timeBiotechnologyDUSP1 dual specificity phosphatase 1Coronavirus disease 2019 (COVID-19)PC prostate cancerRAS renin-angiotensin aldosterone systemCCR5Δ32 genetic variant of chemokine receptorCOVID-19 Researching genetic basis of resistance and potential pharmacological targets Italian nonagenarians/centenarians Longevity modelAsymptomaticSARS-1 severe acute respiratory syndrome virus 1SIRT-1 Sirtuin 1Th1 t-helper lymphocyte type 1Immune systemROS reactive oxygen speciesTGF-β transforming growth factor betaET-1 endothelin-1ComputingMethodologies_COMPUTERGRAPHICSADAM-17 metallopeptidase domain 17business.industrySARS-CoV-2SBP systolic blood pressureCOVID-19HDACs histone deacetylasesComorbidityImmune Systembusiness5-LO lipoxygenase 5Ageing Research Reviews
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Bakteriofāga AP205 apvalka proteīna strukturālie pētījumi

2015

Darbā ar rentgenstruktūranalīzes palīdzību tika noteikta Acinetobacter fāga AP205 apvalka proteīna struktūra 1,9 Å izšķirtspējā. Proteīna vispārējā struktūra ir līdzīga radniecīgo bakteriofāgu iepriekš noteiktajām struktūrām, bet ir vērojamas vairākas būtiskas atšķirības, no kurām nozīmīgākā ir C- un N- galu atrašanās uz kapsīdas virsmas. Iegūtie rezultāti izskaidro AP205 fāga kapsīdu toleranci pret garām insercijām C- un N- galos, kā arī paver ceļu racionālai apvalka proteīna modificēšanai praktiskiem pielietojumiem. Darbs izstrādāts Latvijas Biomedicīnas pētījumu un studiju centra proteīnu kristalogrāfijas laboratorijā Dr. biol. Kaspara Tāra vadībā.

dimērissRNA fāgsAP205Bioloģijaproteīnu struktūraapvalka proteīns
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