Abstract:
:Pulsed field gradients were incorporated into the HCACO experiment for acquiring spectra on isotopically enriched protein samples dissolved in H2O. Excellent water suppression and spectral quality were achieved using the modified pulse sequence (gd-HCACO), as demonstrated for a 13C-/15N-labeled sample of the SH2 domain from the hematopoietic cellular kinase dissolved in 90% H2O/10% D2O. Strong correlations for all residues were observed in the gd-HCACO spectrum, even for residues having alpha-protons resonating exactly at the H2O frequency. The HCACO-TOCSY experiment was modified to correlate intraresidue 13C alpha (rather than 1H alpha), carbonyl (13C'), and aliphatic side-chain protons [(H)CACO-TOCSY]. Pulsed field gradients were also incorporated into the (H)CACO-TOCSY experiment for water suppression.
journal_name
J Biomol NMRjournal_title
Journal of biomolecular NMRauthors
Zhang W,Gmeiner WHdoi
10.1007/BF00202041subject
Has Abstractpub_date
1996-05-01 00:00:00pages
247-50issue
3eissn
0925-2738issn
1573-5001journal_volume
7pub_type
杂志文章abstract::Calculated coupling constants (3JHNH alpha, 1JC alpha H alpha, 2JC'H alpha, 1JC alpha N and 2JC alpha N) from our accompanying paper [Edison, A.S. et al. (1994) J. Biomol. NMR, 4, 519-542] have been used to generate error surfaces that can provide estimates of the phi and psi angles in proteins. We have used experimen...
journal_title:Journal of biomolecular NMR
pub_type: 杂志文章
doi:10.1007/BF00156619
更新日期:1994-07-01 00:00:00
abstract::The ATP binding cassette transporter TAPL translocates cytosolic peptides into the lumen of lysosomes driven by the hydrolysis of ATP. Functionally, this transporter can be divided into coreTAPL, comprising the transport function, and an additional N-terminal transmembrane domain called TMD0, which is essential for ly...
journal_title:Journal of biomolecular NMR
pub_type: 杂志文章
doi:10.1007/s10858-013-9774-2
更新日期:2013-10-01 00:00:00
abstract::New methods are described for accurate measurement of multiple residual dipolar couplings in nucleic acid bases. The methods use TROSY-type pulse sequences for optimizing resolution and sensitivity, and rely on the E.COSY principle to measure the relatively small two-bond (2)D(CH) couplings at high precision. Measurem...
journal_title:Journal of biomolecular NMR
pub_type: 杂志文章
doi:10.1007/s10858-005-1846-5
更新日期:2004-11-01 00:00:00
abstract::We demonstrate a novel sparse (13)C labelling approach for methylotrophic yeast P. pastoris expression system, towards solid-state NMR studies of eukaryotic membrane proteins. The labelling scheme was achieved by co-utilizing natural abundance methanol and specifically (13)C labelled glycerol as carbon sources in the ...
journal_title:Journal of biomolecular NMR
pub_type: 杂志文章
doi:10.1007/s10858-016-0033-1
更新日期:2016-05-01 00:00:00
abstract::Recent efforts to reduce the measurement time for multidimensional NMR experiments have fostered the development of a variety of new procedures for sampling and data processing. We recently described concentric ring sampling for 3-D NMR experiments, which is superior to radial sampling as input for processing by a mul...
journal_title:Journal of biomolecular NMR
pub_type: 杂志文章
doi:10.1007/s10858-008-9275-x
更新日期:2008-12-01 00:00:00
abstract::TROSY-based triple resonance experiments are essential for protein backbone assignment of large biomolecular systems by solution NMR spectroscopy. In a survey of the current Bruker pulse sequence library for TROSY-based experiments we found that several sequences were plagued by artifacts that affect spectral quality ...
journal_title:Journal of biomolecular NMR
pub_type: 杂志文章
doi:10.1007/s10858-017-0133-6
更新日期:2017-09-01 00:00:00
abstract::We have developed an approach for simultaneous structure calculation and automatic Nuclear Overhauser Effect (NOE) assignment to solve nuclear magnetic resonance (NMR) structures from unassigned NOESY data. The approach, autoNOE-Rosetta, integrates Resolution Adapted Structural RECombination (RASREC) Rosetta NMR calcu...
journal_title:Journal of biomolecular NMR
pub_type: 杂志文章
doi:10.1007/s10858-014-9833-3
更新日期:2014-07-01 00:00:00
abstract::Protein molecules sample different conformations in solution and characterizing these conformations is crucial to understanding protein function. 15N CEST experiments are now routinely used to study slow conformational exchange of protein molecules between a 'visible' major state and 'invisible' minor states. These ex...
journal_title:Journal of biomolecular NMR
pub_type: 杂志文章
doi:10.1007/s10858-018-00223-3
更新日期:2019-02-01 00:00:00
abstract::HNCO/HNCACO type correlation experiments are an alternative for assignment of backbone resonances in extensively deuterated proteins in the solid-state, given the fact that line widths on the order of 14-17 Hz are achieved in the carbonyl dimension without the need of high power decoupling. The achieved resolution dem...
journal_title:Journal of biomolecular NMR
pub_type: 杂志文章
doi:10.1007/s10858-010-9404-1
更新日期:2010-05-01 00:00:00
abstract::For the understanding of cellular processes the molecular structure of biomolecules has to be accurately determined. Initial models can be significantly improved by structure refinement techniques. Here, we present the refinement methods and analysis techniques implemented in the GROMOS software for biomolecular simul...
journal_title:Journal of biomolecular NMR
pub_type: 杂志文章
doi:10.1007/s10858-011-9534-0
更新日期:2011-11-01 00:00:00
abstract::Staphylococcus aureus hibernation promoting factor (SaHPF) is a 22,2 kDa protein which plays a crucial role in 100S Staphylococcus aureus ribosome formation during stress. SaHPF consists of N-terminal domain (NTD) that prevents proteins synthesis by binding to the 30S subunit at the P- and A-sites, connected through a...
journal_title:Journal of biomolecular NMR
pub_type: 杂志文章
doi:10.1007/s10858-019-00254-4
更新日期:2019-05-01 00:00:00
abstract::Due to practical limitations in available 15N rf field strength, imperfections in 15N 180 degrees pulses arising from off-resonance effects can result in significant sensitivity loss, even if the chemical shift offset is relatively small. Indeed, in multi-dimensional NMR experiments optimized for protein backbone amid...
journal_title:Journal of biomolecular NMR
pub_type: 杂志文章
doi:10.1007/s10858-006-9089-7
更新日期:2006-12-01 00:00:00
abstract::An improved version of the three-dimensional HCCH-COSY NMR experiment is described that correlates the resonances of geminal and vicinal proton pairs with the chemical shift of the 13C nucleus attached to one of the protons. The experiment uses constant-time evolution of transverse 13C magnetization which optimizes tr...
journal_title:Journal of biomolecular NMR
pub_type: 杂志文章
doi:10.1007/BF01875522
更新日期:1991-09-01 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
pub_type: 杂志文章
doi:10.1007/BF00197812
更新日期:1995-11-01 00:00:00
abstract::S3EPY is a Python extension to the program Sparky written to facilitate the assessment of coupling constants from in-phase/antiphase and spin-state-selective excitation (S(3)E) experiments. It enables the routine use of small scalar couplings by automating the coupling evaluation procedure. S3EPY provides an integrate...
journal_title:Journal of biomolecular NMR
pub_type: 杂志文章
doi:10.1007/s10858-009-9392-1
更新日期:2010-02-01 00:00:00
abstract::A three-dimensional 1H, 13C, 31P triple resonance experiment, HCP-CCH-TOCSY, is presented which provides unambiguous through-bond correlation of all 1H ribose protons on the 5' and 3' sides of the intervening phosphorus along the backbone bonding network in 13C-labeled RNA oligonucleotides. The correlation of the comp...
journal_title:Journal of biomolecular NMR
pub_type: 杂志文章
doi:10.1007/BF00227473
更新日期:1995-01-01 00:00:00
abstract::PG-1 adopts a dimeric structure in dodecylphosphocholine (DPC) micelles, and a channel is formed by the association of several dimers but the molecular mechanisms of the membrane damage by non-α-helical peptides are still unknown. The formation of the PG-1 dimer is important for pore formation in the lipid bilayer, si...
journal_title:Journal of biomolecular NMR
pub_type: 杂志文章
doi:10.1007/s10858-014-9885-4
更新日期:2015-04-01 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
pub_type: 杂志文章
doi:10.1023/a:1008340210079
更新日期:2001-02-01 00:00:00
abstract::Description of protein dynamics is known to be essential in understanding their function. Studies based on a well established [Formula: see text] NMR relaxation methodology have been applied to a large number of systems. However, the low dispersion of [Formula: see text] chemical shifts very often observed within intr...
journal_title:Journal of biomolecular NMR
pub_type: 杂志文章
doi:10.1007/s10858-017-0138-1
更新日期:2017-11-01 00:00:00
abstract::We present heteronuclear three-dimensional gradient-NMR techniques for the resonanceassignment of exchangeable (-OH and -NH) protons in uniformly 13C isotopically enrichedoligosaccharides and for the measurement of 1H-1H nuclear Overhauser enhancementsinvolving these protons. These techniques are derived from conventi...
journal_title:Journal of biomolecular NMR
pub_type: 杂志文章
doi:10.1023/A:1018671517876
更新日期:1997-01-01 00:00:00
abstract::We report here the backbone 1HN, 15N, 13C alpha, 13CO, and 1H alpha NMR assignments for the catalytic domain of human fibroblast collagenase (HFC). Three independent assignment pathways (matching 1H, 13C alpha, and 13CO resonances) were used to establish sequential connections. The connections using 13C alpha resonanc...
journal_title:Journal of biomolecular NMR
pub_type: 杂志文章
doi:10.1023/a:1018615400129
更新日期:1997-01-01 00:00:00
abstract::The development of new protein labeling strategies, along with optimized experiments that exploit the label, have significantly impacted on the types of biochemical problems that can now be addressed by solution NMR spectroscopy. Here we describe how methyl labeling of key residues in a highly deuterated protein backg...
journal_title:Journal of biomolecular NMR
pub_type: 杂志文章,评审
doi:10.1007/s10858-009-9376-1
更新日期:2010-01-01 00:00:00
abstract::Selective water excitation schemes are provided which rely on the radiation damping effect in probeheads characterized by high quality factors. The schemes are implemented in homonuclear NOE and ROE experiments, designed for the selective observation of water-protein cross peaks and their assignment using standard pro...
journal_title:Journal of biomolecular NMR
pub_type: 杂志文章
doi:10.1007/BF00182286
更新日期:1995-06-01 00:00:00
abstract::Methyl (13)CHD(2) isotopomers of all methyl-containing amino-acids can be observed in residually protonated samples of large proteins obtained from [U-(13)C,(1)H]-glucose/D(2)O-based bacterial media, with sensitivity sufficient for a number of NMR applications. Selective detection of some subsets of methyl groups (Ala...
journal_title:Journal of biomolecular NMR
pub_type: 杂志文章
doi:10.1007/s10858-009-9393-0
更新日期:2010-02-01 00:00:00
abstract::Great theoretical and methodological advances are pushing the limits of resolution and sensitivity in solid state NMR (SSNMR). However, sample preparation remains a critical issue for the success of an experiment. The factors affecting spectral quality in SSNMR samples are discussed, examining cases encountered in the...
journal_title:Journal of biomolecular NMR
pub_type: 杂志文章
doi:10.1007/s10858-013-9776-0
更新日期:2013-10-01 00:00:00
abstract::The use of pulsed field gradients in multiple-pulse NMR experiments has many advantages, including the possibility of obtaining excellent water suppression without the need for selective presaturation. In such gradient experiments the water magnetization is dephased deliberately; exchange between the saturated protons...
journal_title:Journal of biomolecular NMR
pub_type: 杂志文章
doi:10.1007/BF00211750
更新日期:1995-04-01 00:00:00
abstract::The transmembrane protein YuaF from B. subtilis is a member of the NfeD-like clan with a potential role in maintaining membrane integrity during conditions of cellular stress. nfeD-genes are primarily found in highly conserved operon structures together with the gene of another membrane protein belonging to the SPFH s...
journal_title:Journal of biomolecular NMR
pub_type: 杂志文章
doi:10.1007/s10858-008-9261-3
更新日期:2008-09-01 00:00:00
abstract::The (1)H, (13)C and (15)N NMR resonances of the backbone of serine protease PB92 have been assigned. This 269-residue protein is one of the largest monomeric proteins assigned so far. The amount and quality of information available suggest that even larger proteins could be assigned with present methods. Measured chem...
journal_title:Journal of biomolecular NMR
pub_type: 杂志文章
doi:10.1007/BF00178340
更新日期:1994-01-01 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
pub_type: 杂志文章
doi:10.1007/s10858-019-00295-9
更新日期:2020-03-01 00:00:00
abstract::Solid-state NMR spectra of membrane proteins often show significant line broadening at cryogenic temperatures. Here we investigate the effects of several cryoprotectants to preserve the spectral resolution of lipid membranes and membrane peptides at temperatures down to ~200 K. Trehalose, glycerol, dimethylsulfoxide (...
journal_title:Journal of biomolecular NMR
pub_type: 杂志文章
doi:10.1007/s10858-014-9845-z
更新日期:2014-08-01 00:00:00