Mid-infrared study of deoxyadenosine at high pressures: evidence of phase transitions.

abstract：:Drug resistant mutations have severely restricted the success of HIV therapy. These mutations frequently involve the aspartic protease encoded by the virus. Knowledge of the molecular mechanisms underlying the conformational changes of HIV-1 protease mutants may be useful in developing more effective and longer lastin...

journal_title：Journal of biomolecular structure & dynamics

authors： Purohit R,Rajendran V,Sethumadhavan R

更新日期：2011-08-01 00:00:00

abstract：:Histone deacetylases (HDACs) are a group of enzymes that have prominent and crucial effect on various biological systems, mainly by their suppressive effect on transcription. Searching for inhibitors targeting their respective isoforms without affecting other targets is greatly needed. Some histone deacetylases have n...

journal_title：Journal of biomolecular structure & dynamics

authors： Elmezayen AD,Yelekçi K

更新日期：2020-07-27 00:00:00

abstract：:EhCPADH is a protein complex involved in the virulence of Entamoeba histolytica, the protozoan responsible for human amebiasis. It is formed by the EhCP112 cysteine protease and the EhADH adhesin. To explore the molecular basis of the complex formation, three-dimensional models were built for both proteins and molecul...

journal_title：Journal of biomolecular structure & dynamics

authors： Montaño S,Orozco E,Correa-Basurto J,Bello M,Chávez-Munguía B,Betanzos A

更新日期：2017-02-01 00:00:00

abstract：:We previously reported on a mutant lipase KV1 (Mut-LipKV1) from Acinetobacter haemolyticus which optimal pH was raised from 8.0 to 11.0 after triple substitutions of surface aspartic acid (Asp) with lysine (Lys). Herein, this study further examined the Mut-LipKV1 by molecular docking, molecular dynamics (MD) simulatio...

journal_title：Journal of biomolecular structure & dynamics

authors： Anuar NFSK,Wahab RA,Huyop F,Amran SI,Hamid AAA,Halim KBA,Hood MHM

更新日期：2020-03-23 00:00:00

abstract：:This work is devoted to the careful QM/QTAIM analysis of the evolution of the basic physico-chemical parameters along the intrinsic reaction coordinate (IRC) of the biologically important 2AP·T(WC)↔2AP·T*(w) and 2AP·C*(WC)↔2AP·C(w) Watson-Crick(WC)↔wobble(w) tautomeric transformations obtained at each point of the IRC...

journal_title：Journal of biomolecular structure & dynamics

authors： Brovarets' OO,Voiteshenko IS,Pérez-Sánchez H,Hovorun DM

更新日期：2018-05-01 00:00:00

abstract：:High-mobility group A1 (HMGA1) is a non-histone chromosomal protein, which is known as 'architectural' transcription factor that facilitates the assembly of 'enhanceosome.' Because of its elevated expression in a number of human malignancies, with barely minimal levels in healthy adults, HMGA1 is considered as potenti...

journal_title：Journal of biomolecular structure & dynamics

authors： Akhter MZ,Rajeswari MR

更新日期：2017-03-01 00:00:00

abstract：:Crystals of the small ribosomal subunit from Thermus thermophilus diffract to 3A and exhibit reasonable isomorphism and moderate resistance to irradiation. A 5A MIR map of this particle shows a similar shape to the part assigned to this particle within the cryo-EM reconstructions of the whole ribosome and contains reg...

journal_title：Journal of biomolecular structure & dynamics

authors： Auerbach T,Pioletti M,Avila H,Anagnostopoulos K,Weinstein S,Franceschi F,Yonath A

更新日期：2000-02-01 00:00:00

abstract：:Flap motif and its dynamics were extensively reported in aspartate proteases, e.g. HIV proteases and plasmepsins. Herein, we report the first account of flap dynamics amongst different conformations of β-secretase using molecular dynamics simulation. Various parameters were proposed and a selected few were picked whic...

journal_title：Journal of biomolecular structure & dynamics

authors： Kumalo HM,Bhakat S,Soliman ME

更新日期：2016-05-01 00:00:00

abstract：:Plasma membrane of each micro-organism has a unique set of lipid composition as a consequence of the environmental adaptation or a response to exposure to antimicrobial peptides (AMPs) as antibiotic agents. Understanding the relationship between lipid composition and action of antimicrobial peptides or considering how...

journal_title：Journal of biomolecular structure & dynamics

authors： Rahmanpour A,Ghahremanpour MM,Mehrnejad F,Moghaddam ME

更新日期：2013-12-01 00:00:00

abstract：:NPC1 is a 25-exon gene located on the long arm of chromosome 18q11.2 and encodes NPC1, a transmembrane protein comprising 1278 amino acid residues. Mutations in the NPC1 gene can cause Niemann-Pick disease type C (NP-C), a rare autosomal-recessive neurovisceral disease. We assessed mutant protein folding using compute...

journal_title：Journal of biomolecular structure & dynamics

authors： Martínez-Archundia M,Hernández Mojica TG,Correa-Basurto J,Montaño S,Camacho-Molina A

更新日期：2020-08-01 00:00:00

abstract：:Room temperature Raman and infrared (IR) spectra of crystalline adenosine at pressures between 1 atm and 10 GPa are reported. Vibrational modes were identified through assignments in the literature. Many modes were found to increase in frequency with pressure; however, some irregularities were observed. Discontinuitie...

journal_title：Journal of biomolecular structure & dynamics

authors： Martin KC,Pinnick DA,Lee SA,Anderson A,Smith W,Griffey RH,Mohan V

更新日期：1999-06-01 00:00:00

abstract：:The development of SrtA inhibitors targeting the biothreat organism namely Bacillus anthracis was achieved by the combined approach of pharmacophore modeling, binding interactions, electron transferring capacity, ADME, and Molecular dynamics studies. In this study, experimentally reported Ba-SrtA inhibitors (pyridazin...

journal_title：Journal of biomolecular structure & dynamics

authors： Selvaraj C,Singh SK

更新日期：2014-01-01 00:00:00

abstract：:Inside a living cell there can be a variety of interactions for any given protein, which serve to regulate denaturation and renaturation processes. Insights into some of them can be obtained by in vitro studies using various denaturing agents. In this study, all-atom MD simulations in explicit solvent and NMR relaxati...

journal_title：Journal of biomolecular structure & dynamics

authors： Borkar A,Rout MK,Hosur RV

更新日期：2012-01-01 00:00:00

abstract：:Urate oxidase (EC 1.7.3.3) is a key enzyme in the purine metabolism which is applied in the treatment of gout and also, as a diagnostic reagent for uric acid detection. In the current study, the trehalose (TRE) effects as an additive on the structural stability and function of uricase were investigated. For recombinan...

journal_title：Journal of biomolecular structure & dynamics

authors： Taherimehr Z,Zaboli M,Torkzadeh-Mahani M

更新日期：2020-10-01 00:00:00

abstract：:It has been found that DNA molecules are often hooked around obstacles in a U-shaped configuration in gel electrophoresis. To understand the dynamics of the unhooking of U-shaped DNA molecules undergoing gel electrophoresis, we have examined the length changes of the longer and shorter arms of the U-shape as a functio...

journal_title：Journal of biomolecular structure & dynamics

authors： Song L,Maestre MF

更新日期：1991-08-01 00:00:00

abstract：:To provide an in-depth insight into the molecular basis of spontaneous tautomerism in DNA and RNA base pairs, a hybrid Monte Carlo (MC)-quantum chemical (QC) methodology is implemented to map two-dimensional potential energy surfaces along the reaction coordinates of solvent-assisted proton transfer processes in guano...

journal_title：Journal of biomolecular structure & dynamics

authors： Markova N,Pejov L,Stoyanova N,Enchev V

更新日期：2017-05-01 00:00:00

abstract：:The location, orientation and dynamics of a thiazole-containing analogue of distamycin 1 bound to the decadeoxyribonucleotide d-[CGCAATTGCG]2 have been studied by non-exchangable and imino proton NMR resonances of the 1:1 complex. Using NOE difference, COSY and NOESY experiments, lexitropsin (1) was located in the min...

journal_title：Journal of biomolecular structure & dynamics

authors： Kumar S,Bathini Y,Joseph T,Pon RT,Lown JW

更新日期：1991-08-01 00:00:00

abstract：:Continuum finite element material models used for traumatic brain injury lack local injury parameters necessitating nanoscale mechanical injury mechanisms be incorporated. One such mechanism is membrane mechanoporation, which can occur during physical insults and can be devastating to cells, depending on the level of ...

journal_title：Journal of biomolecular structure & dynamics

authors： Murphy MA,Mun S,Horstemeyer MF,Baskes MI,Bakhtiary A,LaPlaca MC,Gwaltney SR,Williams LN,Prabhu RK

更新日期：2019-03-01 00:00:00

abstract：:Tau-tubulin kinase 1 inhibitors inhibit tau protein phosphorylation on Ser198, Ser199, Ser202, Ser422, and also in paired helical filaments. We developed receptor-based pharmacophore models by exploiting three TTBK1 protein structures, i.e., 4NFN, 4BTM, and 4BTK. The integrated e-pharmacophore based virtual screening ...

journal_title：Journal of biomolecular structure & dynamics

authors： Jana S,Singh SK

更新日期：2020-02-01 00:00:00

abstract：:We have developed an iterative hybrid algorithm (HA) to predict the 3D structure of peptides starting from their amino acid sequence. The HA is made of a modified genetic algorithm (GA) coupled to a local optimizer. Each HA iteration is carried out in two phases. In the first phase several GA runs are performed upon t...

journal_title：Journal of biomolecular structure & dynamics

authors： Garduño-Juárez R,Morales LB

更新日期：2003-08-01 00:00:00

abstract：:The preferred conformation of orexin-B, an orphan G-protein coupled receptor agonist (the human sequence is RSGPPGLQGRLQRLLQASGNHAAGILTM-NH(2)) has been determined by (1)H and (13)C 2D NMR spectroscopy and molecular modeling. Orexin-B has been implicated in sleep-wakefulness and feeding regulation. The membrane mimeti...

journal_title：Journal of biomolecular structure & dynamics

authors： Miskolzie M,Lucyk S,Kotovych G

更新日期：2003-12-01 00:00:00

abstract：:A number of tandemly repeated DNA sequences have the ability to form hairpin structures by forming non-standard base pairs. When (GCC)15 and (GGC)15 strands are annealed together, the expected duplex is the only product. However, when (GCC)15 is annealed with (GCC)10, depending on the relative concentrations, up to fi...

journal_title：Journal of biomolecular structure & dynamics

authors： Zhao Y,Cheng W,Gibb CL,Gupta G,Kallenbach NR

更新日期：1996-10-01 00:00:00

abstract：:COVID-19 is a novel severe acute respiratory syndrome coronavirus. Currently, there is no effective treatment and vaccines seem to be the solution in the future. Virtual screening of potential drugs against the S protein of severe acute respiratory syndrome corona virus 2 (SARS-CoV-2) has provided small molecular comp...

journal_title：Journal of biomolecular structure & dynamics

authors： Yepes-Pérez AF,Herrera-Calderon O,Quintero-Saumeth J

更新日期：2020-10-29 00:00:00

abstract：:Computations on the energy profiles for Na+ in the gramicidin A (GA) channel have been extended by introducing the effect, previously neglected, of the amino acid side chains of GA, fixed in their most stable conformations. The calculations have been performed in two approximations: 1) with the ethanolamine tail fixed...

journal_title：Journal of biomolecular structure & dynamics

authors： Etchebest C,Pullman A

更新日期：1985-02-01 00:00:00

abstract：:The conformation of the colicin fragment of E. coli 16S rRNA was probed with various nucleases and with the adenosine-specific reagent diethylpyrocarbonate (DEP). The results confirm the presence of a stable central hairpin in the colicin fragment and a weaker additional secondary structure involving the regions 5' an...

journal_title：Journal of biomolecular structure & dynamics

authors： Heus HA,van Knippenberg PH

更新日期：1988-02-01 00:00:00

abstract：:The structural and thermodynamic characters of alpha-syn12 peptide in aqueous solution at different pH and temperatures have been investigated through temperature replica exchange molecular dynamics (T-REMD) simulations with GROMOS 43A1 force field. The two independent T-REMD simulations were completed at pH = 7.0 and...

journal_title：Journal of biomolecular structure & dynamics

authors： Cao Z,Liu L,Wang J

更新日期：2010-12-01 00:00:00

abstract：:A simple relation exists between the packing density in crystals of short A-DNA duplexes and their global double-helical structure. The volume per nucleotide pair shows a linear inverse correlation with the mean displacement of base pairs from the best straight helix axis. The mean displacement is a measure of major g...

journal_title：Journal of biomolecular structure & dynamics

authors： Heinemann U

更新日期：1991-02-01 00:00:00

abstract：:The object of the present study is the verification of a new approach to the design of the active truncated forms of enzymes. The method is based on a new way of investigating the protein sequences--the ANalysis of Informational Structure (ANIS). The analysis of informational structure allows to determine the hierarch...

journal_title：Journal of biomolecular structure & dynamics

authors： Nekrasov AN,Radchenko VV,Shuvaeva TM,Novoselov VI,Fesenko EE,Lipkin VM

更新日期：2007-04-01 00:00:00

abstract：:The AKT isoforms are a group of key kinases that play a critical role in tumorigenesis. These enzymes are overexpressed in different types of cancers, such as breast, colon, prostate, ovarian, and lung. Because of its relevance the AKT isoforms are attractive targets for the design of anticancer molecules. However, it...

journal_title：Journal of biomolecular structure & dynamics

authors： Trejo-Soto PJ,Hernández-Campos A,Romo-Mancillas A,Medina-Franco JL,Castillo R

更新日期：2018-02-01 00:00:00

abstract：:Heavy metal pollutants such as Cd, Hg, Pb, As, and Se are considered as both a global problem and a growing threat to the humanity. Being strongly poisonous to the metal-sensitive enzymes and leading to the growth inhibition and death of organisms, these metals have a toxic impact on the plants and animals. Inducing t...

journal_title：Journal of biomolecular structure & dynamics

authors： Mahnam K,Foruzandeh S,Mirakhorli N,Saffar B

更新日期：2018-06-01 00:00:00