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：:Polar mutations in transmembrane alpha helices may alter the structural details of the hydrophobic sequences and control intermolecular contacts. We have performed molecular dynamics simulations on the transmembrane domain of the proto-oncogenic and the oncogenic forms of the Neu receptor in a fluid DMPC bilayer to te...

journal_title：Journal of biomolecular structure & dynamics

authors： Samna Soumana O,Aller P,Garnier N,Genest M

更新日期：2005-08-01 00:00:00

abstract：:The closed loops within the proteins of the TIM-barrel fold family are analyzed and compared sequence- and structure-wise. The size distribution of the closed loops of the TIM-barrels confirms universal preference to the standard size of 25-30 residues. 3D structural RMSD comparisons of the closed loops and presentati...

journal_title：Journal of biomolecular structure & dynamics

authors： Frenkel ZM,Trifonov EN

更新日期：2005-06-01 00:00:00

abstract：:The EPR study of spin labeled macromolecules has provided insight into structural and dynamical properties of DNA, proteins, and related systems. While spin labeling has been useful, it is experimentally difficult to determine if the spin label significantly alters the conformation of the macromolecule to which it is ...

journal_title：Journal of biomolecular structure & dynamics

authors： Darian E,Gannett PM

更新日期：2005-04-01 00:00:00

abstract：:Gas-phase gradient optimization was carried out on the canonical Watson-Crick DNA base pairs using the second-order Møller-Plesset perturbation method at the 6-31G(d) and 6-31G(d,p) basis sets. It is detected that full geometry optimization at the MP2 level leads to an intrinsically nonplanar propeller-twisted and buc...

journal_title：Journal of biomolecular structure & dynamics

authors： Danilov VI,Anisimov VM

更新日期：2005-02-01 00:00:00

abstract：:Formation of intramolecular tetraplex structures by the thrombin-binding DNA aptamer (TBA) in the presence of K(+), Pb(2+), Ba(2+), Sr(2+) and Mn(2+) has been studied by vibrational spectroscopy. All tetraplex structures contain G-G Hoogsteen type base pairing, both C2'endo/anti and C2'endo/syn deoxyguanosine glycosid...

journal_title：Journal of biomolecular structure & dynamics

authors： Mondragon-Sanchez JA,Liquier J,Shafer RH,Taillandier E

更新日期：2004-12-01 00:00:00

abstract：:Three-strand oligonucleotide complexes are employed to assess the effect of base stacking and base pair mismatch on the relative thermodynamic stabilities of oligonucleotide duplexes. The melting behavior of three-strand oligonucleotide complexes incorporating nicks and gaps as well as internal single base mismatches ...

journal_title：Journal of biomolecular structure & dynamics

authors： Murphy D,Doyle H,Eritja R,Redmond G

更新日期：2004-10-01 00:00:00

abstract：:Based on Fourier transform infrared (FTIR) microspectroscopy, the conformation of rhEGF under the influence of pH, heat treatment, chaotropic salts, concentration of salt and protein structure perturbants was studied. The FTIR spectrum of rhEGF showed that major secondary structures from amide I bands composed of 40.6...

journal_title：Journal of biomolecular structure & dynamics

authors： Yang CH,Wu PC,Huang YB,Tsai YH

更新日期：2004-08-01 00:00:00

abstract：:Temporal order ("chronology") of appearance of amino acids and their respective codons on evolutionary scene is reconstructed. A consensus chronology of amino acids is built on the basis of 60 different criteria each offering certain temporal order. After several steps of filtering the chronology vectors are averaged ...

journal_title：Journal of biomolecular structure & dynamics

authors： Trifonov EN

更新日期：2004-08-01 00:00:00

abstract：:Abstract Neuropeptide Y (NPY), receptors belong to the G-protein coupled receptor superfamily. NPY mediates several physiological responses, such as blood pressure, food intake, sedation. These actions of NPY are mediated by six receptor subtypes denoted as Y(1)-Y(5) and y(6). Modeling of receptor subtypes and bindi...

journal_title：Journal of biomolecular structure & dynamics

authors： Jois SD,Nagarajarao LM,Prabhakaran M,Balasubramaniam A

更新日期：2004-08-01 00:00:00

abstract：:Malaria remains one of the most important infectious diseases in the world. Plasmodial cysteine proteases are proposed to be promising targets for novel antimalarial drug design. Vivapain-2 and vivapain-3 are cysteine proteases from Plasmodium vivax and apparent orthologs of falcipain-2 and falcipain-3 from Plasmodium...

journal_title：Journal of biomolecular structure & dynamics

authors： Desai PV,Avery MA

更新日期：2004-06-01 00:00:00

abstract：:In the present study, the impact of chromium(III) complexes ([Cr(salen)(H2O)2](+) (1), [Cr(en)3]3+ (2) and [Cr(EDTA)(H2O)]- (3)) on the biophysical properties of mucin like specific viscosity, zeta potential and particle size has been investigated. It is evident from the present investigation that the nature of the co...

journal_title：Journal of biomolecular structure & dynamics

authors： Shrivastava HY,Sreeram KJ,Nair BU

更新日期：2004-04-01 00:00:00

abstract：:The mechanism by which peptides bind to micelles is believed to be a two-phase process, involving (i). initial electrostatic interactions between the peptide and micelle surface, followed by (ii). hydrophobic interactions between peptide side chains and the micelle core. To better characterize the electrostatic portio...

journal_title：Journal of biomolecular structure & dynamics

authors： Whitehead TL,Jones LM,Hicks RP

更新日期：2004-02-01 00:00:00

abstract：:Thermodynamic parameters of coaxial stacking at complementary helix-helix interfaces GX*pYG/CZVC (X,Y=A,C,T,G;*-nick) created by contiguous oligonucleotide hybridization were determined. The data obtained were compared to the thermodynamic parameters of coaxial stacking at the interfaces CX*pYC/GZVG. Multiple linear r...

journal_title：Journal of biomolecular structure & dynamics

authors： Pyshnyi DV,Goldberg EL,Ivanova EM

更新日期：2003-12-01 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 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：: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：:Methylation of DNA occurs most readily at N(3), N(7), and O(6) of purine bases and N(3) and O(2) of pyrimidines. Methylated bases are continuously formed through endogenous and exogenous mechanisms. The results of a theoretical ab initio study on the methylation of G:C base pair components are reported. The geometries...

journal_title：Journal of biomolecular structure & dynamics

authors： Forde G,Flood A,Salter L,Hill G,Gorb L,Leszczynski J

更新日期：2003-06-01 00:00:00

abstract：:Time Correlated Single Photon Counting (TCSPC) was used for the first time to analyze the effect/changes in the mode of intercalation of ethidium bromide (EtBr) and acridine orange (AO) to calf thymus DNA brought about due to interaction of naturally occurring methylxanthines such as theophylline (X1), theobromine (X2...

journal_title：Journal of biomolecular structure & dynamics

authors： Johnson IM,Kumar SG,Malathi R

更新日期：2003-04-01 00:00:00

abstract：:We have carried out B3LYP hybrid density functional studies of complexes formed by cyclic cytosine-, guanine-, thymine-, uracil- and mixed guanine cytosine-tetrads with Li+, Na+ and K+ ions to determine their structures and interaction energies. The conformations studied have been restricted to a hydrogen bond pattern...

journal_title：Journal of biomolecular structure & dynamics

authors： Meyer M,Sühnel J

更新日期：2003-02-01 00:00:00

abstract：:EcoRII DNA methyltransferase (M.EcoRII) recognizes the DNA sequence 5'.CC*T/AGG.3' and catalyzes the transfer of the methyl group from S-adenosyl-L-methionine to the C5 position of the inner cytosine residue (C*). We obtained several DNA duplexes containing photoactive 5-iodo-2'-deoxyuridine (i(5)dU) or 5-[4-(3-(trifl...

journal_title：Journal of biomolecular structure & dynamics

authors： Koudan EV,Subach OM,Korshunova GA,Romanova EA,Eritja R,Gromova ES

更新日期：2002-12-01 00:00:00

abstract：:We would be tempted to state that there has never been a Levinthal paradox. Indeed, Levinthal raised an interesting problem about protein folding, as he realized that proteins have no time to explore exhaustively their conformational space on the way to their native structure. He did not seem to find this paradoxical ...

journal_title：Journal of biomolecular structure & dynamics

authors： Rooman M,Dehouck Y,Kwasigroch JM,Biot C,Gilis D

更新日期：2002-12-01 00:00:00

abstract：:The binding of quinolones, nalidixic acid (Nal), oxolinic acid (Oxo) with double stranded polynucleotides was undertaken by using UV-melting, UV-Vis absorption, fluorescence and CD spectroscopic techniques. The binding of Nal or Oxo to the polynucleotides under low-salt buffer conditions were determined for poly (dA)....

journal_title：Journal of biomolecular structure & dynamics

authors： Jain A,Rajeswari MR

更新日期：2002-10-01 00:00:00

abstract：:We have performed an 4-ns MD simulation of calmodulin complexed with a target peptide in explicit water, under realistic conditions of constant temperature and pressure, in the presence of a physiological concentration of counterions and using Ewald summation to avoid truncation of long-range electrostatic forces. Dur...

journal_title：Journal of biomolecular structure & dynamics

authors： Yang C,Kuczera K

更新日期：2002-10-01 00:00:00

abstract：:In the present work fluctuations of number of ligands adsorbed on macromolecule are investigated. We have taken into account the adsorption and desorption of ligands under the circumstance of some adsorption centers fluctuations affected by medium fluctuation. The correlation function and spectral density of number of...

journal_title：Journal of biomolecular structure & dynamics

authors： Arakelyan VB,Haroutiunian SG,Arakelyan HV,Haroutiunian TS

更新日期：2002-08-01 00:00:00

abstract：:The insertion of viral DNA into the host chromosome is an essential step in the replication of HIV-1, and is carried out by an enzyme, HIV-1 integrase (IN). Since the latter has no human cellular counterpart, it is an attractive target for antiviral drug design. Several IN inhibitors having activities in the micromola...

journal_title：Journal of biomolecular structure & dynamics

authors： Rao GS,Bhatnagar S,Ahuja V

更新日期：2002-08-01 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 model of locally accurate conformation for the HIV-Thailand principal neutralizing determinant (PND) located within the V3 loop of the virus envelope protein gp120 was built in terms of NMR spectroscopy data. To this end, the NMR-based conformational analysis of synthetic molecule representing the peptide copy of ...

journal_title：Journal of biomolecular structure & dynamics

authors： Andrianov AM

更新日期：2002-06-01 00:00:00

abstract：:Pre-mRNA splicing is one of the most complex and intricate processes in eukaryotic cell biology. Over the past decade, my laboratory has been interested in determining the structures of RNA components of the spliceosome, and in investigating how the structure, stability and dynamics of these RNA components are perturb...

journal_title：Journal of biomolecular structure & dynamics

authors： Gmeiner WH

更新日期：2002-04-01 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

authors： Jain A,Rajeswari MR,Ahmed F

更新日期：2002-02-01 00:00:00

abstract：:The secondary structure of a bradykinin B(1)receptor antagonist B-10324 (F5C-Lys-(1)- Lys(0)-Arg(1)-Pro(2)- Hyp(3)-Gly(4)-CpG(5)- Ser(6)-DTic(7)-CpG(8)) was determined by NMR at 800MHz. The conformational data are compared with those obtained previously for two bradykinin B(1) receptor antagonists, namely B-9858 (Lys-...

journal_title：Journal of biomolecular structure & dynamics

authors： Miskolzie M,Gera L,Stewart JM,Kotovych G

更新日期：2002-02-01 00:00:00

abstract：:Triple helices with G*G.C and A*A.T base triplets with third GA strands either parallel or antiparallel with respect to the homologous duplex strand have been formed in presence of Na (+) or Mg(2+) counterions. Antiparallel triplexes are more stable and can be obtained even in presence of only monovalent Na(+) counter...

journal_title：Journal of biomolecular structure & dynamics

authors： Liquier J,Geinguenaud F,Huynh-Dinh T,Gouyette C,Khomyakova E,Taillandier E

更新日期：2001-12-01 00:00:00

abstract：:Traditional approaches for macromolecular structure elucidation, including NMR, crystallography and cryo-EM have made significant progress in defining the structures of protein-protein complexes. A substantial number of macromolecular structures, however, have not been examined with atomic detail due to sample size an...

journal_title：Journal of biomolecular structure & dynamics

authors： Goldsmith SC,Guan JQ,Almo S,Chance M

更新日期：2001-12-01 00:00:00

abstract：:Two 4-ns molecular dynamics simulations of calcium loaded calmodulin in solution have been performed, using both standard nonbonded cutoffs and Ewald summation to treat electrostatic interactions. Our simulation results are generally consistent with solution experimental studies of calmodulin structure and dynamics, i...

journal_title：Journal of biomolecular structure & dynamics

authors： Yang C,Jas GS,Kuczera K

更新日期：2001-10-01 00:00:00

abstract：:Molecular modeling studies have been carried out to investigate the interactions between substrate sialyloligosaccharide (SOS) fragments bearing different glycosidic linkages and influenza virus N9 neuraminidase, a surface glycoprotein of influenza virus subtype N9. The studies revealed that the allowed orientation fo...

journal_title：Journal of biomolecular structure & dynamics

authors： Veluraja K,Suresh MX,Christlet TH,Rafi ZA

更新日期：2001-08-01 00:00:00

abstract：:The reproducibility of melting curves for repeated hybridizations of target DNA with generic oligonucleotide microchips is shown experimentally to depend on the character of matching between fragments of target DNA and immobilized oligonucleotides. The reproducibility of melting curves is higher for the perfect match ...

journal_title：Journal of biomolecular structure & dynamics

authors： Lebed JB,Chechetkin VR,Turygin AY,Shick VV,Mirzabekov AD

更新日期：2001-06-01 00:00:00

abstract：:The conformational space available to GnRH and lGnRH-III was compared using 5.2 ns constant temperature and pressure molecular dynamics simulations with explicit TIP3P solvation and the AMBER v. 5.0 force field. Cluster analysis of both trajectories resulted in two groups of conformations. Results of free energy calcu...

journal_title：Journal of biomolecular structure & dynamics

authors： Watts CR,Mezei M,Murphy RF,Lovas S

更新日期：2001-04-01 00:00:00

abstract：:Geometries and interaction energies of unusual UU and AA base pairs with one standard hydrogen bond (H-bond) and additional C-H...O or C-H...N contacts have been determined by quantum-chemical methods taking into account electron correlation. Whereas the C-H bond length in the UU C-H...O contact increases upon complex...

journal_title：Journal of biomolecular structure & dynamics

authors： Brandl M,Meyer M,Sühnel J

更新日期：2001-02-01 00:00:00

abstract：:Elicitins, produced by most of the phytopathogenic fungi of the genus Phytophthora, provoke in the tobacco plant both remote leaf necrosis and the induction of a resistance against subsequent attack by various micro-organisms. The crystal structure of b-cryptogein (CRY), secreted by Phytophthora cryptogea, was previou...

journal_title：Journal of biomolecular structure & dynamics

authors： Demaret S,Demaret JP,Brunie S

更新日期：2000-12-01 00:00:00

abstract：:A molecular dynamics simulation of the Sm binding site from human U4 snRNA was undertaken to determine the conformational flexibility of this region and to identify RNA conformations that were important for binding of the Sm proteins. The RNA was fully-solvated (>9,000 water molecules) and charge neutralized by inclus...

journal_title：Journal of biomolecular structure & dynamics

authors： Guo J,Daizadeh I,Gmeiner WH

更新日期：2000-12-01 00:00:00