The secondary structure of a pyrimidine-guanine sequence-specific ribonuclease possessing cytotoxic activity from the oocytes of Rana catesbeiana.

abstract：:New nuclear magnetic resonance (NMR) methods are described for the measurement of cross-correlation rates of zero- and double-quantum coherences involving two nitrogen nuclei belonging to successive amino acids in proteins and peptides. Rates due to the concerted fluctuations of two NH(N) dipole-dipole interactions an...

journal_title：Journal of biomolecular NMR

authors： Pelupessy P,Ravindranathan S,Bodenhausen G

更新日期：2003-04-01 00:00:00

abstract：:During the past three years it has become possible to compute ab initio the 13C, 15N and 19F NMR chemical shifts of many sites in native proteins. Chemical shifts are beginning to become a useful supplement to more established methods of solution structure determination, and may find utility in solid-state analysis as...

journal_title：Journal of biomolecular NMR

authors： Oldfield E

更新日期：1995-04-01 00:00:00

abstract：:The key to obtaining the model-free description of the dynamics of a macromolecule is the optimisation of the model-free and Brownian rotational diffusion parameters using the collected R (1), R (2) and steady-state NOE relaxation data. The problem of optimising the chi-squared value is often assumed to be trivial, ho...

journal_title：Journal of biomolecular NMR

authors： d'Auvergne EJ,Gooley PR

更新日期：2008-02-01 00:00:00

abstract：:We present NMRlib, a suite of jython-based tools designed for Bruker spectrometers (TopSpin versions 3.2-4.0) that allow easy setup, management, and exchange of NMR experiments. A NMR experiment can be set up and executed in a few clicks by navigating through the NMRlib GUI tree structure, without any further paramete...

journal_title：Journal of biomolecular NMR

authors： Favier A,Brutscher B

更新日期：2019-05-01 00:00:00

abstract：:Senktide is a highly specific and potent analog of neurokinin B, the natural ligand of the tachykinin receptor NK-3. The membrane-bound conformation of senktide, interacting with negatively charged membrane vesicles composed of perdeuterated phosphatidylcholine and phosphatidylglycerol (70:30), has been investigated u...

journal_title：Journal of biomolecular NMR

authors： Bersch B,Koehl P,Nakatani Y,Ourisson G,Milon A

更新日期：1993-07-01 00:00:00

abstract：:For biomolecular NMR structures typically only a poor correspondence is observed between statistics derived from the experimental input data and structural quality indicators obtained from the structure ensembles. Here, we investigate the relationship between the amount of available NMR data and structure quality. By ...

journal_title：Journal of biomolecular NMR

authors： Nabuurs SB,Krieger E,Spronk CA,Nederveen AJ,Vriend G,Vuister GW

更新日期：2005-10-01 00:00:00

abstract：:Signal overlapping is a major bottleneck for protein NMR analysis. We propose a new method, stable-isotope-assisted parameter extraction (SiPex), to resolve overlapping signals by a combination of amino-acid selective isotope labeling (AASIL) and tensor decomposition. The basic idea of Sipex is that overlapping signal...

journal_title：Journal of biomolecular NMR

authors： Kasai T,Ono S,Koshiba S,Yamamoto M,Tanaka T,Ikeda S,Kigawa T

更新日期：2020-03-01 00:00:00

abstract：:The kinetics of lanthanide (III) exchange for calcium(II) in the C-terminal EF-hand of the protein calbindin D9k have been studied by one-dimensional (1D) stopped-flow NMR. By choosing a paramagnetic lanthanide (Ce3+), kinetics in the sub-second range can be easily measured. This is made possible by the fact that (i) ...

journal_title：Journal of biomolecular NMR

authors： Barbieri R,Hore PJ,Luchina C,Pierattelli R

更新日期：2002-08-01 00:00:00

abstract：:The P1 adhesin (aka Antigen I/II or PAc) of the cariogenic bacterium Streptococcus mutans is a cell surface-localized protein involved in sucrose-independent adhesion and colonization of the tooth surface. The immunoreactive and adhesive properties of S. mutans suggest an unusual functional quaternary ultrastructure c...

journal_title：Journal of biomolecular NMR

authors： Tang W,Bhatt A,Smith AN,Crowley PJ,Brady LJ,Long JR

更新日期：2016-02-01 00:00:00

abstract：:A procedure is presented for automated sequence-specific assignment of NMR resonances of uniformly [(13)C, (15)N]-labeled RNA. The method is based on a suite of four through-bond and two through-space high-dimensional automated projection spectroscopy (APSY) experiments. The approach is exemplified with a 0.3 mM sampl...

journal_title：Journal of biomolecular NMR

authors： Krähenbühl B,Lukavsky P,Wider G

更新日期：2014-08-01 00:00:00

abstract：:Extensive spectral overlap presents a major problem for the NMR study of large RNAs. Here we present NMR techniques for resolution enhancement and spectral simplification of fully 13C labelled RNA. High-resolution 1H-13C correlation spectra are obtained by combining TROSY-type experiments with multiple-band-selective ...

journal_title：Journal of biomolecular NMR

authors： Brutscher B,Boisbouvier J,Kupce E,Tisné C,Dardel F,Marion D,Simorre JP

更新日期：2001-02-01 00:00:00

abstract：:For larger proteins, and proteins not amenable to expression in bacterial hosts, it is difficult to deduce structures using NMR methods based on uniform (13)C, (15)N isotopic labeling and observation of just nuclear Overhauser effects (NOEs). In these cases, sparse labeling with selected (15)N enriched amino acids and...

journal_title：Journal of biomolecular NMR

authors： Feng L,Lee HS,Prestegard JH

更新日期：2007-07-01 00:00:00

abstract：:The exchange broadening of backbone amide proton resonances of a 23-mer fusion peptide of the transmembrane subunit of HIV-1 envelope glycoprotein gp41, gp41-FP, was investigated at pH 5 and 7 at room temperature in perdeuterated sodium dodecyl sulfate (SDS) micellar solution. Comparison of resonance peaks for these p...

journal_title：Journal of biomolecular NMR

authors： Chang DK,Cheng SF

更新日期：1998-11-01 00:00:00

abstract：:The application of metabolic precursors for selective stable isotope labeling of aromatic residues in cell-based protein overexpression has already resulted in numerous NMR probes to study the structural and dynamic characteristics of proteins. With anthranilic acid, we present the structurally simplest precursor for ...

journal_title：Journal of biomolecular NMR

authors： Schörghuber J,Geist L,Bisaccia M,Weber F,Konrat R,Lichtenecker RJ

更新日期：2017-09-01 00:00:00

abstract：:In our previous work, we proposed a new way to represent protein native states, using ensembles of a small number of conformations with relative Populations, or ESP in short. Using Ubiquitin as an example, we showed that using a small number of conformations could greatly reduce the potential of overfitting and assign...

journal_title：Journal of biomolecular NMR

authors： Vammi V,Song G

更新日期：2015-12-01 00:00:00

abstract：:We describe a novel method for the robust, rapid, and reliable determination of J couplings in multi-dimensional NMR coupling data, including small couplings from larger proteins. The method, "High-resolution Iterative Frequency Identification of Couplings" (HIFI-C) is an extension of the adaptive and intelligent data...

journal_title：Journal of biomolecular NMR

authors： Cornilescu G,Bahrami A,Tonelli M,Markley JL,Eghbalnia HR

更新日期：2007-08-01 00:00:00

abstract：:G-matrix FT projection NMR spectroscopy was employed for resonance assignment of the 79-residue subunit c of the Escherichia coli F(1)F(0) ATP synthase embedded in micelles formed by lyso palmitoyl phosphatidyl glycerol (LPPG). Five GFT NMR experiments, that is, (3,2)D HNNCO, L-(4,3)D HNNC (alphabeta) C (alpha), L-(4,...

journal_title：Journal of biomolecular NMR

authors： Zhang Q,Atreya HS,Kamen DE,Girvin ME,Szyperski T

更新日期：2008-03-01 00:00:00

abstract：:Four novel amino acid type-selective triple resonance experiments to identify the backbone amino proton and nitrogen resonances of Arg and Lys and of their sequential neighbors in (13C,15N)-labeled proteins are presented: the R(i+1)-HSQC and R(i,i+1)-HSQC select signals originating from Arg side chains, the K(i+1)-HSQ...

journal_title：Journal of biomolecular NMR

authors： Schubert M,Oschkinat H,Schmieder P

更新日期：2001-08-01 00:00:00

abstract：:A method is proposed to determine the conformational equilibrium of flexible polypeptides in solution, using the data provided by NMR spectroscopy and theoretical conformational calculations. The algorithm consists of the following three steps: (i) search of the conformational space in order to find conformations with...

journal_title：Journal of biomolecular NMR

authors： Groth M,Malicka J,Czaplewski C,Ołdziej S,Lankiewicz L,Wiczk W,Liwo A

更新日期：1999-12-01 00:00:00

abstract：:We propose a method for the determination of (15)N csa/dipolar cross-correlation rates based on the measurement of the two apparent transverse (or longitudinal) relaxation rates associated with each component of the nitrogen doublet (N(alpha) and N(beta)). This is achieved by inserting a spin state selective scheme in...

journal_title：Journal of biomolecular NMR

authors： Bouguet-Bonnet S,Mutzenhardt P,Canet D

更新日期：2004-10-01 00:00:00

abstract：:2D 15N-1H correlation spectra are ideal for measuring backbone amide populations to determine amide exchange protection factors in studies of protein folding or other structural features. Most protein NMR spectroscopists use HSQC, which has been shown to be generally superior to HMQC in both resolution and sensitivity...

journal_title：Journal of biomolecular NMR

authors： Davis JH

更新日期：1995-06-01 00:00:00

abstract：:The process of resonance assignment represents a time-consuming and potentially error-prone bottleneck in structural studies of proteins by solid-state NMR (ssNMR). Software for the automation of this process is therefore of high interest. Procedures developed through the last decades for solution-state NMR are not di...

journal_title：Journal of biomolecular NMR

authors： Nielsen JT,Kulminskaya N,Bjerring M,Nielsen NC

更新日期：2014-06-01 00:00:00

abstract：:Nearly complete backbone 1H, 15N and 13C signal assignments are reported for beta-hydroxydecanoyl thiol ester dehydrase, a 39-kDa homodimer containing 342 amino acids. Although 15N relaxation data show that the protein has a rotational correlation time of 18 ns, assignments were derived from triple-resonance experimen...

journal_title：Journal of biomolecular NMR

authors： Copié V,Battles JA,Schwab JM,Torchia DA

更新日期：1996-06-01 00:00:00

abstract：:The NMR derived translational diffusion coefficients were performed on unlabeled and uniformly labeled 13C,15N human insulin in water, both in neat, with zinc ions only, and in pharmaceutical formulation, containing only m-cresol as phenolic ligand, glycerol and zinc ions. The results show the dominant role of the pH ...

journal_title：Journal of biomolecular NMR

authors： Sitkowski J,Bocian W,Bednarek E,Urbańczyk M,Koźmiński W,Borowicz P,Płucienniczak G,Łukasiewicz N,Sokołowska I,Kozerski L

更新日期：2018-06-01 00:00:00

abstract：:Three different conformations of proline rings in a protein in solution, Up, Down and Twist, have been distinguished, and stereospecific assignments of the pyrrolidine beta-, gamma- and delta-hydrogens have been made on the basis of 1H-1H vicinal coupling constant patterns and intraresidue NOEs. For all three conforma...

journal_title：Journal of biomolecular NMR

authors： Cai M,Huang Y,Liu J,Krishnamoorthi R

更新日期：1995-09-01 00:00:00

abstract：:Analysis of 2D [(13)C,(1)H]-HSQC spectra of biosynthetic fractionally (13)C labeled proteins is a reliable, straightforward means to obtain stereospecific assignments of Val and Leu methyl sites in proteins. Herein we show that the same fractionally labeled protein sample facilitates observation and identification of ...

journal_title：Journal of biomolecular NMR

authors： Jacob J,Louis JM,Nesheiwat I,Torchia DA

更新日期：2002-11-01 00:00:00

abstract：:Spectral densities of the 15N amide in Escherichia coli ribonuclease HI, obtained from NMR relaxation experiments, were compared with those calculated using a molecular dynamics (MD) simulation. All calculations and comparisons assumed that the auto-correlation function describing the internal motions of the molecule ...

journal_title：Journal of biomolecular NMR

authors： Ishima R,Yamasaki K,Saito M,Nagayama K

更新日期：1995-09-01 00:00:00

abstract：:Time-averaged restraints in molecular dynamics simulations offer a means to account for the averaging that is implicit in NMR spectroscopic data. We present a systematic investigation of the parameters which characterise time-averaged distance restraints. Using previously published data for a small protein, chymotryps...

journal_title：Journal of biomolecular NMR

authors： Nanzer AP,van Gunsteren WF,Torda AE

更新日期：1995-11-01 00:00:00

abstract：:Two methods for the measurement of homonuclear 3J(HNH)alpha coupling constants are described. Both HSQC- and HMQC-type experiments employ 'quantitative J-correlation', in which the coupling constant of interest is obtained from the intensity ratio of cross peaks of two spectra. The first spectrum is acquired with 3J(H...

journal_title：Journal of biomolecular NMR

authors： Permi P,Kilpeläinen I,Annila A,Heikkinen S

更新日期：2000-01-01 00:00:00

abstract：:Residual dipolar couplings (RDC) between nuclear spins in partially aligned samples offer unique insights into biomacromolecular structure and dynamics. To fully benefit from the RDC data, accurate knowledge of the magnitude ( D (a)) and rhombicity ( R ) of the molecular alignment tensor, A, is important. An extended ...

journal_title：Journal of biomolecular NMR

authors： Bryce DL,Bax A

更新日期：2004-03-01 00:00:00