Nanosecond T-jump experiment in poly(glutamic acid): a circular dichroism study.

Abstract:

:Poly(glutamic acid) has been studied with a nanosecond T-jump experiment. A new experimental set-up based on the frequency-quadrupling of an 82 MHz Titanium-Sapphire laser allows rapid CD measurements to be performed. Combining time-resolved absorption and circular dichroism at 204 and 220 nm, we are able to measure precisely the unfolding relaxation time as well as the helical fraction evolution. We show that only CD at 220 nm is relevant to observe the unfolding of an alpha helix whereas no change is observed for CD at 204 nm. Conversely, both absorptions yield information on the dynamics of the process.

journal_name

Int J Mol Sci

authors

Mendonça L,Hache F

doi

10.3390/ijms13022239

subject

Has Abstract

pub_date

2012-01-01 00:00:00

pages

2239-48

issue

2

issn

1422-0067

pii

ijms-13-02239

journal_volume

13

pub_type

杂志文章
  • Intracellular Ca2+ Signaling in Protozoan Parasites: An Overview with a Focus on Mitochondria.

    abstract::Ca2+ signaling has been involved in controling critical cellular functions such as activation of proteases, cell death, and cell cycle control. The endoplasmatic reticulum plays a significant role in Ca2+ storage inside the cell, but mitochondria have long been recognized as a fundamental Ca2+ pool. Protozoan parasite...

    journal_title:International journal of molecular sciences

    pub_type: 杂志文章,评审

    doi:10.3390/ijms22010469

    authors: Scarpelli PH,Pecenin MF,Garcia CRS

    更新日期:2021-01-05 00:00:00

  • Omega-3 Fatty Acid-Derived Resolvin D2 Regulates Human Placental Vascular Smooth Muscle and Extravillous Trophoblast Activities.

    abstract::Omega-3 fatty acids are important to pregnancy and neonatal development and health. One mechanism by which omega-3 fatty acids exert their protective effects is through serving as substrates for the generation of specialized pro-resolving lipid mediators (SPM) that potently limit and resolve inflammatory processes. We...

    journal_title:International journal of molecular sciences

    pub_type: 杂志文章

    doi:10.3390/ijms20184402

    authors: Ulu A,Sahoo PK,Yuil-Valdes AG,Mukherjee M,Van Ormer M,Muthuraj PG,Thompson M,Anderson Berry A,Hanson CK,Natarajan SK,Nordgren TM

    更新日期:2019-09-07 00:00:00

  • Synthesis of Fmoc-Triazine Amino Acids and Its Application in the Synthesis of Short Antibacterial Peptidomimetics.

    abstract::To combat the escalating rise of antibacterial resistance, the development of antimicrobial peptides (AMPs) with a unique mode of action is considered an attractive strategy. However, proteolytic degradation of AMPs remains the greatest challenge in their transformation into therapeutics. Herein, we synthesized Fmoc-t...

    journal_title:International journal of molecular sciences

    pub_type: 杂志文章

    doi:10.3390/ijms21103602

    authors: Gunasekaran P,Kim EY,Lee J,Ryu EK,Shin SY,Bang JK

    更新日期:2020-05-20 00:00:00

  • Interference with the Cannabinoid Receptor CB1R Results in Miswiring of GnRH3 and AgRP1 Axons in Zebrafish Embryos.

    abstract::The G protein-coupled cannabinoid receptors type 1 (CB1R) and type 2 (CB2R), and their endocannabinoid (eCBs) ligands, have been implicated in several aspects of brain wiring during development. Here we aim to assess whether interfering with CB1R affects development, neuritogenesis and pathfinding of GnRH and AgRP neu...

    journal_title:International journal of molecular sciences

    pub_type: 杂志文章

    doi:10.3390/ijms21010168

    authors: Zuccarini G,D'Atri I,Cottone E,Mackie K,Shainer I,Gothilf Y,Provero P,Bovolin P,Merlo GR

    更新日期:2019-12-25 00:00:00

  • The Emerging Role of Long Non-Coding RNAs in Plant Defense Against Fungal Stress.

    abstract::Growing interest and recent evidence have identified long non-coding RNA (lncRNA) as the potential regulatory elements for eukaryotes. LncRNAs can activate various transcriptional and post-transcriptional events that impact cellular functions though multiple regulatory functions. Recently, a large number of lncRNAs ha...

    journal_title:International journal of molecular sciences

    pub_type: 杂志文章,评审

    doi:10.3390/ijms21082659

    authors: Zhang H,Guo H,Hu W,Ji W

    更新日期:2020-04-11 00:00:00

  • Mitochondrial Mechanisms of Necroptosis in Liver Diseases.

    abstract::Cell death represents a basic biological paradigm that governs outcomes and long-term sequelae in almost every hepatic disease. Necroptosis is a common form of programmed cell death in the liver. Necroptosis can be activated by ligands of death receptors, which then interact with receptor-interactive protein kinases 1...

    journal_title:International journal of molecular sciences

    pub_type: 杂志文章,评审

    doi:10.3390/ijms22010066

    authors: Xue C,Gu X,Li G,Bao Z,Li L

    更新日期:2020-12-23 00:00:00

  • A Pilot Study of the Photoprotective Effects of Strawberry-Based Cosmetic Formulations on Human Dermal Fibroblasts.

    abstract::Strawberry polyphenols have been extensively studied over the last two decades for their beneficial properties. Recently, their possible use in ameliorating skin conditions has also been proposed; however, their role in preventing UVA-induced damage in cosmetic formulation has not yet been investigated. Skin is consta...

    journal_title:International journal of molecular sciences

    pub_type: 杂志文章

    doi:10.3390/ijms160817870

    authors: Gasparrini M,Forbes-Hernandez TY,Afrin S,Alvarez-Suarez JM,Gonzàlez-Paramàs AM,Santos-Buelga C,Bompadre S,Quiles JL,Mezzetti B,Giampieri F

    更新日期:2015-08-04 00:00:00

  • Comparative Proteomic and Physiological Analyses of Two Divergent Maize Inbred Lines Provide More Insights into Drought-Stress Tolerance Mechanisms.

    abstract::Drought stress is the major abiotic factor threatening maize (Zea mays L.) yield globally. Therefore, revealing the molecular mechanisms fundamental to drought tolerance in maize becomes imperative. Herein, we conducted a comprehensive comparative analysis of two maize inbred lines contrasting in drought stress tolera...

    journal_title:International journal of molecular sciences

    pub_type: 杂志文章

    doi:10.3390/ijms19103225

    authors: Zenda T,Liu S,Wang X,Jin H,Liu G,Duan H

    更新日期:2018-10-18 00:00:00

  • Resveratrol and Its Effects on the Vascular System.

    abstract::Resveratrol, the phenolic substance isolated initially from Veratrum grandiflorum and richly present in grapes, wine, peanuts, soy, and berries, has been attracting attention of scientists and medical doctors for many decades. Herein, we review its effects on the vascular system. Studies utilizing cell cultures and pr...

    journal_title:International journal of molecular sciences

    pub_type: 杂志文章,评审

    doi:10.3390/ijms20071523

    authors: Breuss JM,Atanasov AG,Uhrin P

    更新日期:2019-03-27 00:00:00

  • Detection of Bacterial Pathogens from Broncho-Alveolar Lavage by Next-Generation Sequencing.

    abstract::The applications of whole-metagenome shotgun sequencing (WMGS) in routine clinical analysis are still limited. A combination of a DNA extraction procedure, sequencing, and bioinformatics tools is essential for the removal of human DNA and for improving bacterial species identification in a timely manner. We tackled th...

    journal_title:International journal of molecular sciences

    pub_type: 杂志文章

    doi:10.3390/ijms18092011

    authors: Leo S,Gaïa N,Ruppé E,Emonet S,Girard M,Lazarevic V,Schrenzel J

    更新日期:2017-09-20 00:00:00

  • miRNAmotif-A Tool for the Prediction of Pre-miRNA⁻Protein Interactions.

    abstract::MicroRNAs (miRNAs) are short, non-coding post-transcriptional gene regulators. In mammalian cells, mature miRNAs are produced from primary precursors (pri-miRNAs) using canonical protein machinery, which includes Drosha/DGCR8 and Dicer, or the non-canonical mirtron pathway. In plant cells, mature miRNAs are excised fr...

    journal_title:International journal of molecular sciences

    pub_type: 杂志文章

    doi:10.3390/ijms19124075

    authors: Urbanek-Trzeciak MO,Jaworska E,Krzyzosiak WJ

    更新日期:2018-12-17 00:00:00

  • Therapeutic Potentials of Extracellular Vesicles for the Treatment of Diabetes and Diabetic Complications.

    abstract::Extracellular vesicles (EVs), including exosomes and microvesicles, are nano-to-micrometer vesicles released from nearly all cellular types. EVs comprise a mixture of bioactive molecules (e.g., mRNAs, miRNAs, lipids, and proteins) that can be transported to the targeted cells/tissues via the blood or lymph circulation...

    journal_title:International journal of molecular sciences

    pub_type: 杂志文章,评审

    doi:10.3390/ijms21145163

    authors: Hu W,Song X,Yu H,Sun J,Zhao Y

    更新日期:2020-07-21 00:00:00

  • Enriched Conformational Sampling of DNA and Proteins with a Hybrid Hamiltonian Derived from the Protein Data Bank.

    abstract::In this article, we present a method for the enhanced molecular dynamics simulation of protein and DNA systems called potential of mean force (PMF)-enriched sampling. The method uses partitions derived from the potentials of mean force, which we determined from DNA and protein structures in the Protein Data Bank (PDB)...

    journal_title:International journal of molecular sciences

    pub_type: 杂志文章

    doi:10.3390/ijms19113405

    authors: Peter EK,Cerny J

    更新日期:2018-10-30 00:00:00

  • Optimization of DNA extraction for RAPD and ISSR analysis of Arbutus unedo L. Leaves.

    abstract::Genetic analysis of plants relies on high yields of pure DNA. For the strawberry tree (Arbutus unedo) this represents a great challenge since leaves can accumulate large amounts of polysaccharides, polyphenols and secondary metabolites, which co-purify with DNA. For this specie, standard protocols do not produce effic...

    journal_title:International journal of molecular sciences

    pub_type: 杂志文章

    doi:10.3390/ijms12064156

    authors: Sá O,Pereira JA,Baptista P

    更新日期:2011-01-01 00:00:00

  • Effect of long-term dietary arginyl-fructose (AF) on hyperglycemia and HbA1c in diabetic db/db mice.

    abstract::We have previously reported that Amadori compounds exert anti-diabetic effects by lowering sucrose-induced hyperglycemia in normal Sprague-Dawley rats. In the present study we extended our recent findings to evaluate whether α-glucosidase inhibitor arginyl-fructose (AF) lowers blood glucose level in diabetic db/db mic...

    journal_title:International journal of molecular sciences

    pub_type: 杂志文章

    doi:10.3390/ijms15058352

    authors: Lee KH,Ha KS,Jo SH,Lee CM,Kim YC,Chung KH,Kwon YI

    更新日期:2014-05-12 00:00:00

  • Potential Hepatotoxins Found in Herbal Medicinal Products: A Systematic Review.

    abstract::The risk of liver injury associated with the use of herbal medicinal products (HMPs) is well known among physicians caring for patients under a HMP therapy, as documented in case reports or case series and evidenced by using the Roussel Uclaf Causality Assessment Method (RUCAM) to verify a causal relationship. In many...

    journal_title:International journal of molecular sciences

    pub_type: 杂志文章,评审

    doi:10.3390/ijms21145011

    authors: Quan NV,Dang Xuan T,Teschke R

    更新日期:2020-07-16 00:00:00

  • Hypoxia Pathway Proteins are Master Regulators of Erythropoiesis.

    abstract::Erythropoiesis is a complex process driving the production of red blood cells. During homeostasis, adult erythropoiesis takes place in the bone marrow and is tightly controlled by erythropoietin (EPO), a central hormone mainly produced in renal EPO-producing cells. The expression of EPO is strictly regulated by local ...

    journal_title:International journal of molecular sciences

    pub_type: 杂志文章,评审

    doi:10.3390/ijms21218131

    authors: Watts D,Gaete D,Rodriguez D,Hoogewijs D,Rauner M,Sormendi S,Wielockx B

    更新日期:2020-10-30 00:00:00

  • Impact of Targeted Deletion of the Circadian Clock Gene Bmal1 in Excitatory Forebrain Neurons on Adult Neurogenesis and Olfactory Function.

    abstract::The circadian system is an endogenous timekeeping system that synchronizes physiology and behavior with the 24 h solar day. Mice with total deletion of the core circadian clock gene Bmal1 show circadian arrhythmicity, cognitive deficits, and accelerated age-dependent decline in adult neurogenesis as a consequence of i...

    journal_title:International journal of molecular sciences

    pub_type: 杂志文章

    doi:10.3390/ijms21041394

    authors: Ali AAH,Tundo-Lavalle F,Hassan SA,Pfeffer M,Stahr A,von Gall C

    更新日期:2020-02-19 00:00:00

  • Quinacrine-Mediated Inhibition of Nrf2 Reverses Hypoxia-Induced 5-Fluorouracil Resistance in Colorectal Cancer.

    abstract::5-Fluorouracil (5-FU) is an important chemotherapeutic agent for the systemic treatment of colorectal cancer (CRC), but its effectiveness against CRC is limited by increased 5-FU resistance caused by the hypoxic tumor microenvironment. The purpose of our study was to assess the feasibility of using quinacrine (QC) to ...

    journal_title:International journal of molecular sciences

    pub_type: 杂志文章

    doi:10.3390/ijms20184366

    authors: Kim HG,Kim CW,Lee DH,Lee JS,Oh ET,Park HJ

    更新日期:2019-09-05 00:00:00

  • Influence of Implant Material and Surface on Mode and Strength of Cell/Matrix Attachment of Human Adipose Derived Stromal Cell.

    abstract::A fundamental step for cell growth and differentiation is the cell adhesion. The purpose of this study was to determine the adhesion of different cell lineages, adipose derived stromal cells, osteoblasts, and gingival fibroblast to titanium and zirconia dental implants with different surface treatments. Primary cells ...

    journal_title:International journal of molecular sciences

    pub_type: 杂志文章

    doi:10.3390/ijms21114110

    authors: Jung S,Bohner L,Hanisch M,Kleinheinz J,Sielker S

    更新日期:2020-06-09 00:00:00

  • Peptides as Therapeutic Agents for Inflammatory-Related Diseases.

    abstract::Inflammation is a physiological mechanism used by organisms to defend themselves against infection, restoring homeostasis in damaged tissues. It represents the starting point of several chronic diseases such as asthma, skin disorders, cancer, cardiovascular syndrome, arthritis, and neurological diseases. An increasing...

    journal_title:International journal of molecular sciences

    pub_type: 杂志文章,评审

    doi:10.3390/ijms19092714

    authors: La Manna S,Di Natale C,Florio D,Marasco D

    更新日期:2018-09-11 00:00:00

  • Heat Shock Cognate 70 Functions as A Chaperone for the Stability of Kinetochore Protein CENP-N in Holocentric Insect Silkworms.

    abstract::The centromere, in which kinetochore proteins are assembled, plays an important role in the accurate congression and segregation of chromosomes during cell mitosis. Although the function of the centromere and kinetochore is conserved from monocentric to holocentric, the DNA sequences of the centromere and components o...

    journal_title:International journal of molecular sciences

    pub_type: 杂志文章

    doi:10.3390/ijms20235823

    authors: Li B,Li Z,Lu C,Chang L,Zhao D,Shen G,Kusakabe T,Xia Q,Zhao P

    更新日期:2019-11-20 00:00:00

  • Contribution of Impaired Insulin Signaling to the Pathogenesis of Diabetic Cardiomyopathy.

    abstract::Diabetic cardiomyopathy (DCM) has emerged as a relevant cause of heart failure among the diabetic population. Defined as a cardiac dysfunction that develops in diabetic patients independently of other major cardiovascular risks factors, such as high blood pressure and coronary artery disease, the underlying cause of D...

    journal_title:International journal of molecular sciences

    pub_type: 杂志文章,评审

    doi:10.3390/ijms20112833

    authors: Zamora M,Villena JA

    更新日期:2019-06-11 00:00:00

  • Which Low-Abundance Proteins are Present in the Human Milieu of Gamete/Embryo Maternal Interaction?

    abstract::The improvement of the embryo culture media is of high relevance due to its influence on successful implantation rates, pregnancy, neonatal outcomes, and potential effects in adult life. The ideal conditions for embryo development are those naturally occurring in the female reproductive tract, i.e., the oviductal and ...

    journal_title:International journal of molecular sciences

    pub_type: 杂志文章

    doi:10.3390/ijms20215305

    authors: Canha-Gouveia A,Paradela A,Ramos-Fernández A,Prieto-Sánchez MT,Sánchez-Ferrer ML,Corrales F,Coy P

    更新日期:2019-10-24 00:00:00

  • Pathogenesis of Lafora Disease: Transition of Soluble Glycogen to Insoluble Polyglucosan.

    abstract::Lafora disease (LD, OMIM #254780) is a rare, recessively inherited neurodegenerative disease with adolescent onset, resulting in progressive myoclonus epilepsy which is fatal usually within ten years of symptom onset. The disease is caused by loss-of-function mutations in either of the two genes EPM2A (laforin) or EPM...

    journal_title:International journal of molecular sciences

    pub_type: 杂志文章,评审

    doi:10.3390/ijms18081743

    authors: Sullivan MA,Nitschke S,Steup M,Minassian BA,Nitschke F

    更新日期:2017-08-11 00:00:00

  • Insights into the Impact of Linker Flexibility and Fragment Ionization on the Design of CK2 Allosteric Inhibitors: Comparative Molecular Dynamics Simulation Studies.

    abstract::Protein kinase is a novel therapeutic target for human diseases. The off-target and side effects of ATP-competitive inhibitors preclude them from the clinically relevant drugs. The compounds targeting the druggable allosteric sites outside the highly conversed ATP binding pocket have been identified as promising alter...

    journal_title:International journal of molecular sciences

    pub_type: 杂志文章

    doi:10.3390/ijms19010111

    authors: Zhou Y,Zhang N,Qi X,Tang S,Sun G,Zhao L,Zhong R,Peng Y

    更新日期:2018-01-01 00:00:00

  • PBK/TOPK Expression Predicts Prognosis in Oral Cancer.

    abstract::Oral cancer is a common cancer with poor prognosis. We evaluated the expression of PBK/TOPK (PDZ-binding kinase/T-LAK cell-originated protein kinase) and its prognostic significance in oral cancer. PBK/TOPK expression was measured by immunohistochemical staining of samples from 287 patients with oral cancer. The assoc...

    journal_title:International journal of molecular sciences

    pub_type: 杂志文章

    doi:10.3390/ijms17071007

    authors: Chang CF,Chen SL,Sung WW,Hsieh MJ,Hsu HT,Chen LH,Chen MK,Ko JL,Chen CJ,Chou MC

    更新日期:2016-06-24 00:00:00

  • The Analgesic Effect of Venlafaxine and Its Mechanism on Oxaliplatin-Induced Neuropathic Pain in Mice.

    abstract::The analgesic effect of venlafaxine (VLX), which is a selective serotonin and noradrenaline reuptake inhibitor (SNRI), has been observed on oxaliplatin-induced neuropathic pain in mice. Significant allodynia was shown after oxaliplatin treatment (6 mg/kg, i.p.); acetone and von Frey hair tests were used to assess cold...

    journal_title:International journal of molecular sciences

    pub_type: 杂志文章

    doi:10.3390/ijms20071652

    authors: Li D,Lee JH,Choi CW,Kim J,Kim SK,Kim W

    更新日期:2019-04-03 00:00:00

  • Expression of Transcripts in Marmoset Oocytes Retrieved during Follicle Isolation Without Gonadotropin Induction.

    abstract::The in vitro maturation of oocytes is frequently used as an assisted reproductive technique (ART), and has been successfully established in humans and rodents. To overcome the limitations of ART, novel procedures for the in vitro maturation of early follicles are emerging. During the follicle isolation procedure, the ...

    journal_title:International journal of molecular sciences

    pub_type: 杂志文章

    doi:10.3390/ijms20051133

    authors: Kim YY,Kang BC,Yun JW,Ahn JH,Kim YJ,Kim H,Rosenwaks Z,Ku SY

    更新日期:2019-03-06 00:00:00

  • Common Transcriptional Program of Liver Fibrosis in Mouse Genetic Models and Humans.

    abstract::Multifactorial metabolic diseases, such as non-alcoholic fatty liver disease, are a major burden to modern societies, and frequently present with no clearly defined molecular biomarkers. Herein we used system medicine approaches to decipher signatures of liver fibrosis in mouse models with malfunction in genes from un...

    journal_title:International journal of molecular sciences

    pub_type: 杂志文章

    doi:10.3390/ijms22020832

    authors: Blagotinšek Cokan K,Urlep Ž,Moškon M,Mraz M,Kong XY,Eskild W,Rozman D,Juvan P,Režen T

    更新日期:2021-01-15 00:00:00