Investigation of flap flexibility of β-secretase using molecular dynamic simulations.

abstract：:Distinction criterion for various sets of fixed length peptide fragments and integral distinction measure for various sets of peptide fragments with different length and start position ranges have been introduced on the base of an enumeration procedure and a point estimators for the amino acid distribution characteris...

journal_title：Journal of biomolecular structure & dynamics

authors： Shchelkanov MYu,Starikov NS,Yaroslavtsev IV,Yudin AN,Antonov AV,Novak IL,Vedenov AA,Karamov EV

更新日期：1997-12-01 00:00:00

abstract：:We have analysed S1 sensitivity of SV40 minichromosomes isolated from the nuclei of infected cells at the late stage of infection. We show that a fraction of purified minichromosomes is sensitive towards double-strand cleavage by S1 nuclease. The pattern of specific cleavage reminiscent of that found for subcloned fra...

journal_title：Journal of biomolecular structure & dynamics

authors： Nedospasov SA,Shakhov AN,Hirt B

更新日期：1989-04-01 00:00:00

abstract：:The amino acid sequences of the Yersinia pseudotuberculosis porin (YPS) and Y. pestis porin (YPT) have recently deduced but their three-dimensional structures were not known. These sequences were analyzed using the servers 3D-PSSM and PredPort. The YPS and YPT porins were shown to have a high degree of identity (above...

journal_title：Journal of biomolecular structure & dynamics

authors： Likhatskaya GN,Solov'eva TF,Novikova OD,Issaeva MP,Gusev KV,Kryzhko IB,Trifonov EV,Nurminski EA

更新日期：2005-10-01 00:00:00

abstract：:To explore the anticancer compounds from tormentic acid derivatives, a quantitative structure-activity relationship (QSAR) model was developed by the multiple linear regression methods. The developed QSAR model yielded a high activity-descriptors relationship accuracy of 94% referred by regression coefficient (r2 = .9...

journal_title：Journal of biomolecular structure & dynamics

authors： Alam S,Khan F

更新日期：2018-07-01 00:00:00

abstract：:A useful property of DMSO solvent has been exploited to reveal a new catalytic route for cytidine amino proton exchange, relevant to exchange in the macromolecular state, but hidden in aqueous solution. Additional exchange mechanisms in aqueous monomeric cytidine (and adenosine) are obscured by the formation of a fast...

journal_title：Journal of biomolecular structure & dynamics

authors： McConnell B

更新日期：1986-12-01 00:00:00

abstract：:In order to investigate the interfacial activation of a lipase from Pseudomonas cepacia (PcL), molecular dynamics (MD) simulations and essential dynamics (ED) analysis were performed in different solvent environments: vacuum and explicit water solvents. Starting from the active (open) structure of PcL, the essential d...

journal_title：Journal of biomolecular structure & dynamics

authors： Lee J,Suh SW,Shin S

更新日期：2000-10-01 00:00:00

abstract：:Non-obstructive azoospermia (NOA) is the most clinical problem in case of infertility. About 70% of NOA patients are idiopathic with uncharacterized molecular mechanisms. This study aimed to analyze the possible pathogenic miRNA-target gene interaction and lncRNA-miRNA association involved in NOA. In the current study...

journal_title：Journal of biomolecular structure & dynamics

authors： Sabetian S,Zarei M,Jahromi BN,Morowvat MH,Tabei SMB,Cava C

更新日期：2021-01-26 00:00:00

abstract：:Molecular modeling and molecular dynamics were performed to investigate the interaction of norfloxacin with the DNA oligonucleotide 5'-d(ATACGTAT)(2). Eight quinolone-DNA binding structures were built by molecular modeling on the basis of experimental results. A 100ps molecular dynamics calculation was carried out on ...

journal_title：Journal of biomolecular structure & dynamics

authors： Lee HM,Kim JK,Kim SK

更新日期：2002-06-01 00:00:00

abstract：:The interaction of 6-Thioguanine molecule, an antitumor drug with carbon nanotube and boron nitride nanotube (BNNT) is investigated using molecular dynamics simulations. Based on the obtained results, the strongest negative van der Waals interaction is found between 6-TG and BNNT among the studied nanotubes, which ind...

journal_title：Journal of biomolecular structure & dynamics

authors： Hasanzade Z,Raissi H

更新日期：2020-02-01 00:00:00

abstract：:The Transformer2 (Tra2) proteins in humans are homologues of the Drosophila Tra2 protein. One of the two RNA-binding paralogs, Tra2β, has been very well-studied over the past decade, but not much is known about Tra2α. It was very recently shown that the two proteins demonstrate the phenomenon of paralog compensation. ...

journal_title：Journal of biomolecular structure & dynamics

authors： Ghosh P,Grellscheid SN,Sowdhamini R

更新日期：2016-09-01 00:00:00

abstract：:Interaction studies of bisphenol analogues; biphenol-A (BPA), bisphenol-B (BPB), and bisphenol-F (BPF) with bovine serum albumin (BSA) were performed using multi-spectroscopic and molecular docking studies at the protein level. The mechanism of binding of bisphenols with BSA was dynamic in nature. SDS refolding experi...

journal_title：Journal of biomolecular structure & dynamics

authors： Ikhlas S,Usman A,Ahmad M

更新日期：2019-04-01 00:00:00

abstract：:Enzymes involved in the pyrimidine biosynthesis pathway have become an important target for the pharmacological intervention. One among those enzymes, Aspartate Trans Carbamoylase (ATCase), catalyses the condensation of aspartate and carbamoyl phosphate to form N-carbamoyl-l-aspartate and inorganic phosphate. The pres...

journal_title：Journal of biomolecular structure & dynamics

authors： Kanagarajan S,Mutharasappan N,Dhamodharan P,Jeyaraman M,Ramadas K,Jeyaraman J

更新日期：2014-04-01 00:00:00

abstract：:In this review, the loading efficacies of retinoids with milk proteins are investigated. It has been shown that milk proteins β-lactoglobulin, α-, and β-caseins bind retinol and retinoic acid via hydrophobic, hydrophilic, and H-bonding contacts causing minor alterations of protein secondary structure. Hydrophobic cont...

journal_title：Journal of biomolecular structure & dynamics

authors： Agudelo D,Bourassa P,Bariyanga J,Tajmir-Riahi HA

更新日期：2018-12-01 00:00:00

abstract：:The design and DNA binding activity of beta-structure-forming peptides and netropsin-peptide conjugates are reported. It is found that a pair of peptides-S,S'-bis(Lys-Gly-Val-Cys-Val-NH-NH-Dns)-bridged by an S-S bond binds at least 10 times more strongly to poly(dG).poly(dC) than to poly(dA).poly(dT). This peptide can...

journal_title：Journal of biomolecular structure & dynamics

authors： Nikolaev VA,Grokhovsky SL,Surovaya AN,Leinsoo TA,Sidorova NYu,Zasedatelev AS,Zhuze AL,Strahan GA,Shafer RH,Gursky GV

更新日期：1996-08-01 00:00:00

abstract：:The 1H NMR relaxation effects produced by paramagnetic Cr(III) complexes on nucleoside 5'-mono- and -triphosphates in D2O solution at pH' = 3 were measured. The paramagnetic probes were [Cr(III)(H2O)6]3+, [Cr(III)(H2O)3(HATP)], [Cr(III)(H2O)3(HCTP)] and [Cr(III)(H2O)3(UTP)-, while the matrix nucleotides (0.1 M) were H...

journal_title：Journal of biomolecular structure & dynamics

authors： Cini R,Giorgi G,Laschi F,Rossi C,Marzilli LG

更新日期：1990-02-01 00:00:00

abstract：:Abstract Using high frequency antiphase NMR spectroscopy and computer simulations of the antiphase spectra, we studied the equlibria in the sugar conformations in the DNA duplex 11-mer containing the AAA tract surrounded by cytosines. We demonstrate that at the 3'-end of the A-tract, the sugar switches from the comm...

journal_title：Journal of biomolecular structure & dynamics

authors： Kamath S,Sarma MH,Zhurkin VB,Turner CJ,Sarma RH

更新日期：2000-01-01 00:00:00

abstract：:Binding interactions of the phenazinium dye Janus green blue (JGB) with human and bovine serum albumins (BSA - and BSA) have been explored for the first time from multi-spectroscopic and calorimetric measurements aided by in silico calculations. The formation of ground state complexes between JGB and the respective se...

journal_title：Journal of biomolecular structure & dynamics

authors： Saha S,Bhattacharjee S,Chowdhury J

更新日期：2021-01-07 00:00:00

abstract：:A complete three dimensional model (RCSB000408; PDB code 1qaa) for the LexA repressor dimer bound to the recA operator site consistent with relevant biochemical and biophysical data for the repressor is proposed. A model of interaction of the N-terminal operator binding domain 1-72 with the operator was available. We ...

journal_title：Journal of biomolecular structure & dynamics

authors： Chattopadhyaya R,Ghosh K,Namboodiri VM

更新日期：2000-10-01 00:00:00

abstract：:A procedure is described for the complete resolution of concentration profiles of oligonucleotide triplexes as a function of pH and temperature. The pH and temperature ranges at which triplexes are present and the relative concentrations of all the species involved in acid-base and conformational equilibria are succes...

journal_title：Journal of biomolecular structure & dynamics

authors： Jaumot J,Aviña A,Eritja R,Tauler R,Gargallo R

更新日期：2003-10-01 00:00:00

abstract：:The intrinsic capability of the homo-purine DNA base mispairs to perform wobble↔Watson-Crick/Topal-Fresco tautomeric transitions via the sequential intrapair double proton transfer was discovered for the first time using QM (MP2/DFT) and QTAIM methodologies that are crucial for understanding the microstructural mechan...

journal_title：Journal of biomolecular structure & dynamics

authors： Brovarets' OO,Hovorun DM

更新日期：2015-01-01 00:00:00

abstract：:Molecular dynamics (MD) studies have been carried out on the Hoogsteen hydrogen bonded parallel and the reverse Hoogsteen hydrogen bonded antiparallel C.G*G triplexes. Earlier, the molecular mechanics studies had shown that the parallel structure was energetically more favourable than the antiparallel structure. To ch...

journal_title：Journal of biomolecular structure & dynamics

authors： Kiran MR,Bansal M

更新日期：1998-12-01 00:00:00

abstract：:Hydroxylated polybrominated diphenyl ethers (OH-PBDEs) are a class of toxic environmental pollutants that are persistent, bioaccumulative, and difficult to degrade. Their structure is very similar to the thyroid hormone (T4) and uses the body's thyroid transporter (TTR) binding to interfere with the endocrine balance,...

journal_title：Journal of biomolecular structure & dynamics

authors： Wei Y,Yi Z,Xu J,Yang W,Yang L,Liu H

更新日期：2019-04-01 00:00:00

abstract：:The nature of the H-bonds between the human protein HLA-DR1 (DRB*0101) and the hemagglutinin peptide HA306-318 has been studied using the Quantum Theory of Atoms in Molecules for the first time. We have found four H-bond groups: one conventional CO··HN bond group and three nonconventional CO··HC, π··HC involving aroma...

journal_title：Journal of biomolecular structure & dynamics

authors： Aray Y,Aguilera-García R,Izquierdo DR

更新日期：2019-01-01 00:00:00

abstract：:Two recombinant purine nucleoside phosphorylases from thermophilic bacterium Thermus thermophilus HB27 encoded by genes TT_C1070 (TthPNPI) and TT_C0194 (TthPNPII) were purified and characterized. The comparative analysis of their sequences, molecular weight, enzymes specificity and kinetics of the catalyzed reaction w...

journal_title：Journal of biomolecular structure & dynamics

authors： Timofeev VI,Fateev IV,Kostromina MA,Abramchik YA,Konstantinova ID,Volkov VV,Lykoshin DD,Mikheeva OO,Muravieva TI,Esipov RS,Kuranova IP

更新日期：2020-11-23 00:00:00

abstract：:Enumerating procedure for symbol sequences is proposed. Relationship between Hamming distance for symbol sequences and Euclidean distance for corresponding enumerations is established, and more universal Hamming-transformed Euclidean measure is constructed. A distribution function of amino acid substitutions and some ...

journal_title：Journal of biomolecular structure & dynamics

authors： Shchelkanov MYu,Yudin AN,Antonov AV,Starikov NS,Vedenov AA,Karamov EV

更新日期：1997-10-01 00:00:00

abstract：:Mycobacterium tuberculosis (Mtb), the pathogen of tuberculosis (TB), is one of the most infectious bacteria in the world. The traditional strategy to combat TB involves targeting the pathogen directly; however, the rapid evolution of drug resistance lessens the efficiency of this anti-TB method. Therefore, in recent y...

journal_title：Journal of biomolecular structure & dynamics

authors： Quan Y,Xiong L,Chen J,Zhang HY

更新日期：2017-02-01 00:00:00

abstract：:MAP/microtubule affinity-regulating kinase 4 (MARK4) is a member of adenosine monophosphate-activated protein kinases, directly associated with cancer and neurodegenerative diseases. Here, we have cloned, expressed, and purified two variants of MARK4 [the kinase domain (MARK4-F2), and kinase domain along with 59 N-ter...

journal_title：Journal of biomolecular structure & dynamics

authors： Naz F,Singh P,Islam A,Ahmad F,Imtaiyaz Hassan M

更新日期：2016-06-01 00:00:00

abstract：:Monte Carlo computer simulations were performed on dilute aqueous solutions of thymine, cytosine, uracil, adenine, guanine, the dimethyl phosphate anion in the gauche-gauche conformation and a ribose and deoxyribose derivative. The aqueous hydration of each molecule was analysed in terms of quasi-component distributio...

journal_title：Journal of biomolecular structure & dynamics

authors： Beveridge DL,Maye PV,Jayaram B,Ravishanker G,Mezei M

更新日期：1984-10-01 00:00:00

abstract：:The (+) anti isomer of benz[a]pyrene diol epoxide (BPDE), 7 beta, 8 alpha-dihydroxy-9 alpha, 10 alpha-epoxy-7,8,9,10-tetrahydrobenz [a] pyrene has been identified as the probable tumorigenic lesion in mammalian systems. It forms a predominant adduct with DNA at N2 of guanine. In order to elucidate its conformation in ...

journal_title：Journal of biomolecular structure & dynamics

authors： Hingerty B,Broyde S

更新日期：1983-12-01 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