Abstract:
:Under negative superhelical stress, long (TG)n containing repeats experience a stepwise multiple B-Z transitions. We have investigated the effect of the plasmid size on this transitional behavior. A 66-bp (TG)n containing repeat from the 5'-untranscribed region of mouse ribosomal DNA was inserted in a 3-kb, a 6.5-kb and a 12.5-kb plasmids and its supercoil-driven B-Z transition was followed by OsO4 probing of topoisomer-populations. Our results show a clear correlation between the size of the topological domain and the extent of the region that converts cooperatively into Z-DNA at the initial transition.
journal_name
J Biomol Struct Dynjournal_title
Journal of biomolecular structure & dynamicsauthors
Albert AC,Leng M,Rahmouni ARdoi
10.1080/07391102.1995.10508820subject
Has Abstractpub_date
1995-08-01 00:00:00pages
47-56issue
1eissn
0739-1102issn
1538-0254journal_volume
13pub_type
杂志文章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
pub_type: 杂志文章
doi:10.1080/07391102.2020.1798812
更新日期:2020-07-27 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
pub_type: 杂志文章
doi:10.1080/07391102.2018.1461134
更新日期:2019-04-01 00:00:00
abstract::It is generally believed that base-pair stacking interaction in DNA double helix is one of the strongest interactions that governs sequence directed structural variability. However, X-ray crystal structures of some base-paired doublet sequences have been seen to adopt different structures when flanked by different bas...
journal_title:Journal of biomolecular structure & dynamics
pub_type: 杂志文章
doi:10.1080/07391102.2000.10506645
更新日期:2000-08-01 00:00:00
abstract::Triplex and duplex formation of two deoxyribohexadecamers d-A-(G-A)-G (a) and d-C-(T-C)-T (b) have been studied by UV, CD, fluorescence, and proton NMR spectroscopy. Optical studies of a and b at dilute concentrations (microM range) yielded results similar to those seen for polymers of the same sequence, indicating th...
journal_title:Journal of biomolecular structure & dynamics
pub_type: 杂志文章
doi:10.1080/07391102.1991.10507857
更新日期:1991-04-01 00:00:00
abstract::The simplest form of macromolecular design involves the ligation of nucleic acids. Recent results on the concatenation of nucleic acid junctions show that these molecules can act as fairly rigid macromolecular valence clusters on the nanometer scale. These clusters can be joined to form closed stick figures in which e...
journal_title:Journal of biomolecular structure & dynamics
pub_type: 杂志文章
doi:10.1080/07391102.1985.10508395
更新日期:1985-08-01 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
pub_type: 杂志文章
doi:10.1080/07391102.2017.1340851
更新日期:2018-06-01 00:00:00
abstract::Unselective and reversible adsorption of ligands on DNA for a model of binding proposed by Zasedatelev, Gursky, and Volkenshtein is considered. In this model, the interaction between neighboring ligands located at the distance of i binding centers is characterized by the statistical weight ai. Each ligand covers L bin...
journal_title:Journal of biomolecular structure & dynamics
pub_type: 杂志文章
doi:10.1080/07391102.2008.10507234
更新日期:2008-10-01 00:00:00
abstract::A mononuclear cadmium(II) complex of formula [Cd(5,5'-dmbipy)2(OAc)2]·2H2O (5,5'-dmbipy = 5,5'-dimethyl-2,2'-bipyridine and OAc = acetato ligand) has been synthesized and characterized by FT-IR, UV-Vis, 1H-NMR, elemental analysis and single-crystal X-ray structure analysis. The molecular structure of the complex shows...
journal_title:Journal of biomolecular structure & dynamics
pub_type: 杂志文章
doi:10.1080/07391102.2019.1570867
更新日期:2020-01-01 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
pub_type: 杂志文章
doi:10.1080/07391102.2016.1157037
更新日期:2017-02-01 00:00:00
abstract::We have examined the conformational energetics of the eight most commonly occurring nucleosides--A, U, G, C, dA, dT, dG, dC--as monitored by a semi-empirical energy force field. These are the first reported calculations to completely explore the entire conformational spaces available to all eight major nucleosides usi...
journal_title:Journal of biomolecular structure & dynamics
pub_type: 杂志文章
doi:10.1080/07391102.1985.10508401
更新日期:1985-08-01 00:00:00
abstract::The results of Raman and Infrared (IR) spectroscopic investigations on the vibrational modes of dimethyl phosphorothioate (DMPS) anion, [(CH3O)2(POS)]-, are reported. Ab initio calculations of the vibrational modes, the IR and Raman spectra and the interatomic force constants of DMPS were performed. A normal mode calc...
journal_title:Journal of biomolecular structure & dynamics
pub_type: 杂志文章
doi:10.1080/07391102.1997.10508149
更新日期:1997-02-01 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
pub_type: 杂志文章
doi:10.1080/07391102.2020.1828167
更新日期:2020-10-01 00:00:00
abstract::The intrinsic luminescence of different forms of the alfalfa mosaic virus (AMV) strain 425 coat protein has been studied, both statically and time resolved. It was found that the emission of the protein (Mr 24,250), which contains two tryptophans at positions 54 and 190 and four tyrosines, is completely dominated by t...
journal_title:Journal of biomolecular structure & dynamics
pub_type: 杂志文章
doi:10.1080/07391102.1986.10508464
更新日期:1986-02-01 00:00:00
abstract::Previous reports have shown that protein-drug interaction helps to improve the pharmacokinetics of the drugs. Human serum albumin (HSA) is one of the basic components of blood plasma and it serves as a storage and carrier protein. In the present study, the interaction of a new synthesized Pt [iso]2 complex (cis - [Pt(...
journal_title:Journal of biomolecular structure & dynamics
pub_type: 杂志文章
doi:10.1080/07391102.2020.1745690
更新日期:2020-04-07 00:00:00
abstract::The effect of ligand interacting with native DNA by two types on the parameters of helix-coil transition in homopolymers is considered using the most probable distribution method (Yu.S. Lazurkin et al., Biopolymers 1970). It is shown that at a small relative concentration of ligand the melting enthalpy (delta H) of DN...
journal_title:Journal of biomolecular structure & dynamics
pub_type: 杂志文章
doi:10.1080/07391102.1990.10507793
更新日期:1990-08-01 00:00:00
abstract::Relative humidity induces the reversible crystal transition of guanosine between the dihydrate and the anhydrous state. The characteristics of the transition was investigated by means of X-ray powder diffraction analysis and high-resolution solid-state 13C NMR spectroscopy. Adsorption-desorption hysteresis was observe...
journal_title:Journal of biomolecular structure & dynamics
pub_type: 杂志文章
doi:10.1080/07391102.1994.10508028
更新日期:1994-02-01 00:00:00
abstract::The novel SARS-CoV-2 is the etiological agent causing the Coronavirus disease 2019 (COVID-19), which continues to become an inevitable pandemic outbreak. Over a short span of time, the structures of therapeutic target proteins for SARS-CoV-2 were identified based on the homology modelled structure of similar virus, SA...
journal_title:Journal of biomolecular structure & dynamics
pub_type: 杂志文章
doi:10.1080/07391102.2020.1813202
更新日期:2020-09-02 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
pub_type: 杂志文章
doi:10.1080/07391102.1997.10508187
更新日期:1997-10-01 00:00:00
abstract::Our earlier study on the nucleosomes containing TBP binding sites (TATA boxes) indicated that generally the same sequence, which harbors the TATA box, encodes simultaneously an alternative rotational setting of the box, so that the TATA element is either exposed (position "minor groove out") or hidden in position "min...
journal_title:Journal of biomolecular structure & dynamics
pub_type: 杂志文章
doi:10.1080/07391102.2015.1134348
更新日期:2016-12-01 00:00:00
abstract::We determined the binding sites of curcumin (cur), resveratrol (res), and genistein (gen) with milk β-lactoglobulin (β-LG) at physiological conditions. Fourier transform infrared spectroscopy, circular dichroism, and fluorescence spectroscopic methods as well as molecular modeling were used to determine the binding of...
journal_title:Journal of biomolecular structure & dynamics
pub_type: 杂志文章
doi:10.1080/07391102.2012.742461
更新日期:2013-12-01 00:00:00
abstract::Notch is a single-pass transmembrane receptor protein. Delta (member of the DSL protein family), a Notch ligand, is also single-pass transmembrane protein that can interact with Notch to form the Delta-Notch complex. It has been demonstrated that of the 36 Epidermal Growth Factor (EGF) repeats of Notch, 11th and 12th ...
journal_title:Journal of biomolecular structure & dynamics
pub_type: 杂志文章
doi:10.1080/07391102.2012.674184
更新日期:2012-01-01 00:00:00
abstract::The present study employed the spectroscopic techniques, i.e. fluorescence, and circular dichroism (CD) and the molecular docking approach to investigate the mechanism of interaction of a potent anticancer glucosinolate, sinigrin (SIN), with bovine serum albumin (BSA). SIN binding to BSA resulted in the quenching of i...
journal_title:Journal of biomolecular structure & dynamics
pub_type: 杂志文章
doi:10.1080/07391102.2015.1110835
更新日期:2016-10-01 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
pub_type: 杂志文章
doi:10.1080/07391102.1999.10508324
更新日期:1999-06-01 00:00:00
abstract::CLTOAB is an ammonium-based ionic liquid composed of ε-Caprolactam (CL) C6H11NO and tetraoctylammonium bromide (TOAB) (C32H68BrN). In this study, experimental IR and Raman spectra of CLTOAB ionic liquid together with the computational results of the compound have been reported. The optimized geometry, vibrational freq...
journal_title:Journal of biomolecular structure & dynamics
pub_type: 杂志文章
doi:10.1080/07391102.2018.1495578
更新日期:2019-07-01 00:00:00
abstract::The x-ray crystallographic structure of the nucleosome core particle has been determined using 8 A resolution diffraction data. The particle has a mean diameter of 106 A and a maximum thickness of 65 A in the superhelical axis direction. The longest chord through the histone core measures 85 A and is in a non-axial di...
journal_title:Journal of biomolecular structure & dynamics
pub_type: 杂志文章,评审
doi:10.1080/07391102.1989.10507747
更新日期:1989-08-01 00:00:00
abstract::It is well established that GAA/TTC base triplet expansion is the cause of degenerative disorder in Freidreich's Ataxia. It is also known that these repeat sequences fold back to form the unusual intramolecular triple helix structures in DNA of the type Pyrimidine *Purine *Pyrimidine or Purine *Purine*Pyrimidine. In t...
journal_title:Journal of biomolecular structure & dynamics
pub_type: 杂志文章
doi:10.1080/07391102.2002.10506775
更新日期:2002-02-01 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
pub_type: 杂志文章
doi:10.1080/07391102.2000.10506637
更新日期:2000-01-01 00:00:00
abstract::Coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is an ongoing global health emergency. Repurposing of approved pharmaceutical drugs for COVID-19 treatment represents an attractive approach to quickly identify promising drug candidates. SARS-CoV-2 main protease...
journal_title:Journal of biomolecular structure & dynamics
pub_type: 杂志文章
doi:10.1080/07391102.2020.1837680
更新日期:2020-10-23 00:00:00
abstract::Protein kinase C (PKC) isozymes are important regulatory enzymes that have been implicated in many diseases, including cancer, Alzheimer's disease, and in the eradication of HIV/AIDS. Given their potential clinical ramifications, PKC modulators, e.g. phorbol esters and bryostatin, are also of great interest in the dru...
journal_title:Journal of biomolecular structure & dynamics
pub_type: 杂志文章
doi:10.1080/07391102.2015.1084479
更新日期:2016-07-01 00:00:00
abstract::Current research has shown cell-penetrating peptides and antimicrobial peptides (AMPs) as probable vectors for use in drug delivery and as novel antibiotics. It has been reported that the higher the therapeutic index (TI) the higher would be the bacterial cell penetrating ability. To the best of our knowledge, no in-s...
journal_title:Journal of biomolecular structure & dynamics
pub_type: 杂志文章
doi:10.1080/07391102.2018.1484814
更新日期:2019-06-01 00:00:00