---
_id: '8441'
abstract:
- lang: eng
  text: Solid-state near-rotary-resonance measurements of the spin–lattice relaxation
    rate in the rotating frame (R1ρ) is a powerful NMR technique for studying molecular
    dynamics in the microsecond time scale. The small difference between the spin-lock
    (SL) and magic-angle-spinning (MAS) frequencies allows sampling very slow motions,
    at the same time it brings up some methodological challenges. In this work, several
    issues affecting correct measurements and analysis of 15N R1ρ data are considered
    in detail. Among them are signal amplitude as a function of the difference between
    SL and MAS frequencies, “dead time” in the initial part of the relaxation decay
    caused by transient spin-dynamic oscillations, measurements under HORROR condition
    and proper treatment of the multi-exponential relaxation decays. The multiple
    15N R1ρ measurements at different SL fields and temperatures have been conducted
    in 1D mode (i.e. without site-specific resolution) for a set of four different
    microcrystalline protein samples (GB1, SH3, MPD-ubiquitin and cubic-PEG-ubiquitin)
    to study the overall protein rocking in a crystal. While the amplitude of this
    motion varies very significantly, its correlation time for all four sample is
    practically the same, 30–50 μs. The amplitude of the rocking motion correlates
    with the packing density of a protein crystal. It has been suggested that the
    rocking motion is not diffusive but likely a jump-like dynamic process.
article_processing_charge: No
article_type: original
author:
- first_name: Alexey
  full_name: Krushelnitsky, Alexey
  last_name: Krushelnitsky
- first_name: Diego
  full_name: Gauto, Diego
  last_name: Gauto
- first_name: Diana C.
  full_name: Rodriguez Camargo, Diana C.
  last_name: Rodriguez Camargo
- first_name: Paul
  full_name: Schanda, Paul
  id: 7B541462-FAF6-11E9-A490-E8DFE5697425
  last_name: Schanda
  orcid: 0000-0002-9350-7606
- first_name: Kay
  full_name: Saalwächter, Kay
  last_name: Saalwächter
citation:
  ama: 'Krushelnitsky A, Gauto D, Rodriguez Camargo DC, Schanda P, Saalwächter K.
    Microsecond motions probed by near-rotary-resonance R1ρ 15N MAS NMR experiments:
    The model case of protein overall-rocking in crystals. <i>Journal of Biomolecular
    NMR</i>. 2018;71(1):53-67. doi:<a href="https://doi.org/10.1007/s10858-018-0191-4">10.1007/s10858-018-0191-4</a>'
  apa: 'Krushelnitsky, A., Gauto, D., Rodriguez Camargo, D. C., Schanda, P., &#38;
    Saalwächter, K. (2018). Microsecond motions probed by near-rotary-resonance R1ρ
    15N MAS NMR experiments: The model case of protein overall-rocking in crystals.
    <i>Journal of Biomolecular NMR</i>. Springer Nature. <a href="https://doi.org/10.1007/s10858-018-0191-4">https://doi.org/10.1007/s10858-018-0191-4</a>'
  chicago: 'Krushelnitsky, Alexey, Diego Gauto, Diana C. Rodriguez Camargo, Paul Schanda,
    and Kay Saalwächter. “Microsecond Motions Probed by Near-Rotary-Resonance R1ρ
    15N MAS NMR Experiments: The Model Case of Protein Overall-Rocking in Crystals.”
    <i>Journal of Biomolecular NMR</i>. Springer Nature, 2018. <a href="https://doi.org/10.1007/s10858-018-0191-4">https://doi.org/10.1007/s10858-018-0191-4</a>.'
  ieee: 'A. Krushelnitsky, D. Gauto, D. C. Rodriguez Camargo, P. Schanda, and K. Saalwächter,
    “Microsecond motions probed by near-rotary-resonance R1ρ 15N MAS NMR experiments:
    The model case of protein overall-rocking in crystals,” <i>Journal of Biomolecular
    NMR</i>, vol. 71, no. 1. Springer Nature, pp. 53–67, 2018.'
  ista: 'Krushelnitsky A, Gauto D, Rodriguez Camargo DC, Schanda P, Saalwächter K.
    2018. Microsecond motions probed by near-rotary-resonance R1ρ 15N MAS NMR experiments:
    The model case of protein overall-rocking in crystals. Journal of Biomolecular
    NMR. 71(1), 53–67.'
  mla: 'Krushelnitsky, Alexey, et al. “Microsecond Motions Probed by Near-Rotary-Resonance
    R1ρ 15N MAS NMR Experiments: The Model Case of Protein Overall-Rocking in Crystals.”
    <i>Journal of Biomolecular NMR</i>, vol. 71, no. 1, Springer Nature, 2018, pp.
    53–67, doi:<a href="https://doi.org/10.1007/s10858-018-0191-4">10.1007/s10858-018-0191-4</a>.'
  short: A. Krushelnitsky, D. Gauto, D.C. Rodriguez Camargo, P. Schanda, K. Saalwächter,
    Journal of Biomolecular NMR 71 (2018) 53–67.
date_created: 2020-09-18T10:05:28Z
date_published: 2018-05-30T00:00:00Z
date_updated: 2021-01-12T08:19:17Z
day: '30'
doi: 10.1007/s10858-018-0191-4
extern: '1'
intvolume: '        71'
issue: '1'
language:
- iso: eng
month: '05'
oa_version: Published Version
page: 53-67
publication: Journal of Biomolecular NMR
publication_identifier:
  issn:
  - 0925-2738
  - 1573-5001
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
status: public
title: 'Microsecond motions probed by near-rotary-resonance R1ρ 15N MAS NMR experiments:
  The model case of protein overall-rocking in crystals'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 71
year: '2018'
...
---
_id: '8461'
abstract:
- lang: eng
  text: Solid-state NMR provides insight into protein motion over time scales ranging
    from picoseconds to seconds. While in solution state the methodology to measure
    protein dynamics is well established, there is currently no such consensus protocol
    for measuring dynamics in solids. In this article, we perform a detailed investigation
    of measurement protocols for fast motions, i.e. motions ranging from picoseconds
    to a few microseconds, which is the range covered by dipolar coupling and relaxation
    experiments. We perform a detailed theoretical investigation how dipolar couplings
    and relaxation data can provide information about amplitudes and time scales of
    local motion. We show that the measurement of dipolar couplings is crucial for
    obtaining accurate motional parameters, while systematic errors are found when
    only relaxation data are used. Based on this realization, we investigate how the
    REDOR experiment can provide such data in a very accurate manner. We identify
    that with accurate rf calibration, and explicit consideration of rf field inhomogeneities,
    one can obtain highly accurate absolute order parameters. We then perform joint
    model-free analyses of 6 relaxation data sets and dipolar couplings, based on
    previously existing, as well as new data sets on microcrystalline ubiquitin. We
    show that nanosecond motion can be detected primarily in loop regions, and compare
    solid-state data to solution-state relaxation and RDC analyses. The protocols
    investigated here will serve as a useful basis towards the establishment of a
    routine protocol for the characterization of ps–μs motions in proteins by solid-state
    NMR.
article_processing_charge: No
article_type: original
author:
- first_name: Jens D.
  full_name: Haller, Jens D.
  last_name: Haller
- first_name: Paul
  full_name: Schanda, Paul
  id: 7B541462-FAF6-11E9-A490-E8DFE5697425
  last_name: Schanda
  orcid: 0000-0002-9350-7606
citation:
  ama: 'Haller JD, Schanda P. Amplitudes and time scales of picosecond-to-microsecond
    motion in proteins studied by solid-state NMR: a critical evaluation of experimental
    approaches and application to crystalline ubiquitin. <i>Journal of Biomolecular
    NMR</i>. 2013;57(3):263-280. doi:<a href="https://doi.org/10.1007/s10858-013-9787-x">10.1007/s10858-013-9787-x</a>'
  apa: 'Haller, J. D., &#38; Schanda, P. (2013). Amplitudes and time scales of picosecond-to-microsecond
    motion in proteins studied by solid-state NMR: a critical evaluation of experimental
    approaches and application to crystalline ubiquitin. <i>Journal of Biomolecular
    NMR</i>. Springer Nature. <a href="https://doi.org/10.1007/s10858-013-9787-x">https://doi.org/10.1007/s10858-013-9787-x</a>'
  chicago: 'Haller, Jens D., and Paul Schanda. “Amplitudes and Time Scales of Picosecond-to-Microsecond
    Motion in Proteins Studied by Solid-State NMR: A Critical Evaluation of Experimental
    Approaches and Application to Crystalline Ubiquitin.” <i>Journal of Biomolecular
    NMR</i>. Springer Nature, 2013. <a href="https://doi.org/10.1007/s10858-013-9787-x">https://doi.org/10.1007/s10858-013-9787-x</a>.'
  ieee: 'J. D. Haller and P. Schanda, “Amplitudes and time scales of picosecond-to-microsecond
    motion in proteins studied by solid-state NMR: a critical evaluation of experimental
    approaches and application to crystalline ubiquitin,” <i>Journal of Biomolecular
    NMR</i>, vol. 57, no. 3. Springer Nature, pp. 263–280, 2013.'
  ista: 'Haller JD, Schanda P. 2013. Amplitudes and time scales of picosecond-to-microsecond
    motion in proteins studied by solid-state NMR: a critical evaluation of experimental
    approaches and application to crystalline ubiquitin. Journal of Biomolecular NMR.
    57(3), 263–280.'
  mla: 'Haller, Jens D., and Paul Schanda. “Amplitudes and Time Scales of Picosecond-to-Microsecond
    Motion in Proteins Studied by Solid-State NMR: A Critical Evaluation of Experimental
    Approaches and Application to Crystalline Ubiquitin.” <i>Journal of Biomolecular
    NMR</i>, vol. 57, no. 3, Springer Nature, 2013, pp. 263–80, doi:<a href="https://doi.org/10.1007/s10858-013-9787-x">10.1007/s10858-013-9787-x</a>.'
  short: J.D. Haller, P. Schanda, Journal of Biomolecular NMR 57 (2013) 263–280.
date_created: 2020-09-18T10:09:05Z
date_published: 2013-10-09T00:00:00Z
date_updated: 2021-01-12T08:19:26Z
day: '09'
doi: 10.1007/s10858-013-9787-x
extern: '1'
intvolume: '        57'
issue: '3'
keyword:
- Spectroscopy
- Biochemistry
language:
- iso: eng
month: '10'
oa_version: None
page: 263-280
publication: Journal of Biomolecular NMR
publication_identifier:
  issn:
  - 0925-2738
  - 1573-5001
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
status: public
title: 'Amplitudes and time scales of picosecond-to-microsecond motion in proteins
  studied by solid-state NMR: a critical evaluation of experimental approaches and
  application to crystalline ubiquitin'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 57
year: '2013'
...
---
_id: '8463'
abstract:
- lang: eng
  text: The 1H dipolar network, which is the major obstacle for applying proton detection
    in the solid-state, can be reduced by deuteration, employing the RAP (Reduced
    Adjoining Protonation) labeling scheme, which yields random protonation at non-exchangeable
    sites. We present here a systematic study on the optimal degree of random sidechain
    protonation in RAP samples as a function of the MAS (magic angle spinning) frequency.
    In particular, we compare 1H sensitivity and linewidth of a microcrystalline protein,
    the SH3 domain of chicken α-spectrin, for samples, prepared with 5–25 % H2O in
    the E. coli growth medium, in the MAS frequency range of 20–60 kHz. At an external
    field of 19.96 T (850 MHz), we find that using a proton concentration between
    15 and 25 % in the M9 medium yields the best compromise in terms of sensitivity
    and resolution, with an achievable average 1H linewidth on the order of 40–50
    Hz. Comparing sensitivities at a MAS frequency of 60 versus 20 kHz, a gain in
    sensitivity by a factor of 4–4.5 is observed in INEPT-based 1H detected 1D 1H,13C
    correlation experiments. In total, we find that spectra recorded with a 1.3 mm
    rotor at 60 kHz have almost the same sensitivity as spectra recorded with a fully
    packed 3.2 mm rotor at 20 kHz, even though ~20× less material is employed. The
    improved sensitivity is attributed to 1H line narrowing due to fast MAS and to
    the increased efficiency of the 1.3 mm coil.
article_processing_charge: No
article_type: original
author:
- first_name: Sam
  full_name: Asami, Sam
  last_name: Asami
- first_name: Kathrin
  full_name: Szekely, Kathrin
  last_name: Szekely
- first_name: Paul
  full_name: Schanda, Paul
  id: 7B541462-FAF6-11E9-A490-E8DFE5697425
  last_name: Schanda
  orcid: 0000-0002-9350-7606
- first_name: Beat H.
  full_name: Meier, Beat H.
  last_name: Meier
- first_name: Bernd
  full_name: Reif, Bernd
  last_name: Reif
citation:
  ama: Asami S, Szekely K, Schanda P, Meier BH, Reif B. Optimal degree of protonation
    for 1H detection of aliphatic sites in randomly deuterated proteins as a function
    of the MAS frequency. <i>Journal of Biomolecular NMR</i>. 2012;54(2):155-168.
    doi:<a href="https://doi.org/10.1007/s10858-012-9659-9">10.1007/s10858-012-9659-9</a>
  apa: Asami, S., Szekely, K., Schanda, P., Meier, B. H., &#38; Reif, B. (2012). Optimal
    degree of protonation for 1H detection of aliphatic sites in randomly deuterated
    proteins as a function of the MAS frequency. <i>Journal of Biomolecular NMR</i>.
    Springer Nature. <a href="https://doi.org/10.1007/s10858-012-9659-9">https://doi.org/10.1007/s10858-012-9659-9</a>
  chicago: Asami, Sam, Kathrin Szekely, Paul Schanda, Beat H. Meier, and Bernd Reif.
    “Optimal Degree of Protonation for 1H Detection of Aliphatic Sites in Randomly
    Deuterated Proteins as a Function of the MAS Frequency.” <i>Journal of Biomolecular
    NMR</i>. Springer Nature, 2012. <a href="https://doi.org/10.1007/s10858-012-9659-9">https://doi.org/10.1007/s10858-012-9659-9</a>.
  ieee: S. Asami, K. Szekely, P. Schanda, B. H. Meier, and B. Reif, “Optimal degree
    of protonation for 1H detection of aliphatic sites in randomly deuterated proteins
    as a function of the MAS frequency,” <i>Journal of Biomolecular NMR</i>, vol.
    54, no. 2. Springer Nature, pp. 155–168, 2012.
  ista: Asami S, Szekely K, Schanda P, Meier BH, Reif B. 2012. Optimal degree of protonation
    for 1H detection of aliphatic sites in randomly deuterated proteins as a function
    of the MAS frequency. Journal of Biomolecular NMR. 54(2), 155–168.
  mla: Asami, Sam, et al. “Optimal Degree of Protonation for 1H Detection of Aliphatic
    Sites in Randomly Deuterated Proteins as a Function of the MAS Frequency.” <i>Journal
    of Biomolecular NMR</i>, vol. 54, no. 2, Springer Nature, 2012, pp. 155–68, doi:<a
    href="https://doi.org/10.1007/s10858-012-9659-9">10.1007/s10858-012-9659-9</a>.
  short: S. Asami, K. Szekely, P. Schanda, B.H. Meier, B. Reif, Journal of Biomolecular
    NMR 54 (2012) 155–168.
date_created: 2020-09-18T10:09:18Z
date_published: 2012-08-23T00:00:00Z
date_updated: 2021-01-12T08:19:27Z
day: '23'
doi: 10.1007/s10858-012-9659-9
extern: '1'
intvolume: '        54'
issue: '2'
language:
- iso: eng
month: '08'
oa_version: None
page: 155-168
publication: Journal of Biomolecular NMR
publication_identifier:
  issn:
  - 0925-2738
  - 1573-5001
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
status: public
title: Optimal degree of protonation for 1H detection of aliphatic sites in randomly
  deuterated proteins as a function of the MAS frequency
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 54
year: '2012'
...
---
_id: '8468'
article_processing_charge: No
article_type: original
author:
- first_name: Daniela
  full_name: Lalli, Daniela
  last_name: Lalli
- first_name: Paul
  full_name: Schanda, Paul
  id: 7B541462-FAF6-11E9-A490-E8DFE5697425
  last_name: Schanda
  orcid: 0000-0002-9350-7606
- first_name: Anup
  full_name: Chowdhury, Anup
  last_name: Chowdhury
- first_name: Joren
  full_name: Retel, Joren
  last_name: Retel
- first_name: Matthias
  full_name: Hiller, Matthias
  last_name: Hiller
- first_name: Victoria A.
  full_name: Higman, Victoria A.
  last_name: Higman
- first_name: Lieselotte
  full_name: Handel, Lieselotte
  last_name: Handel
- first_name: Vipin
  full_name: Agarwal, Vipin
  last_name: Agarwal
- first_name: Bernd
  full_name: Reif, Bernd
  last_name: Reif
- first_name: Barth
  full_name: van Rossum, Barth
  last_name: van Rossum
- first_name: Ümit
  full_name: Akbey, Ümit
  last_name: Akbey
- first_name: Hartmut
  full_name: Oschkinat, Hartmut
  last_name: Oschkinat
citation:
  ama: Lalli D, Schanda P, Chowdhury A, et al. Three-dimensional deuterium-carbon
    correlation experiments for high-resolution solid-state MAS NMR spectroscopy of
    large proteins. <i>Journal of Biomolecular NMR</i>. 2011;51(4):477-485. doi:<a
    href="https://doi.org/10.1007/s10858-011-9578-1">10.1007/s10858-011-9578-1</a>
  apa: Lalli, D., Schanda, P., Chowdhury, A., Retel, J., Hiller, M., Higman, V. A.,
    … Oschkinat, H. (2011). Three-dimensional deuterium-carbon correlation experiments
    for high-resolution solid-state MAS NMR spectroscopy of large proteins. <i>Journal
    of Biomolecular NMR</i>. Springer Nature. <a href="https://doi.org/10.1007/s10858-011-9578-1">https://doi.org/10.1007/s10858-011-9578-1</a>
  chicago: Lalli, Daniela, Paul Schanda, Anup Chowdhury, Joren Retel, Matthias Hiller,
    Victoria A. Higman, Lieselotte Handel, et al. “Three-Dimensional Deuterium-Carbon
    Correlation Experiments for High-Resolution Solid-State MAS NMR Spectroscopy of
    Large Proteins.” <i>Journal of Biomolecular NMR</i>. Springer Nature, 2011. <a
    href="https://doi.org/10.1007/s10858-011-9578-1">https://doi.org/10.1007/s10858-011-9578-1</a>.
  ieee: D. Lalli <i>et al.</i>, “Three-dimensional deuterium-carbon correlation experiments
    for high-resolution solid-state MAS NMR spectroscopy of large proteins,” <i>Journal
    of Biomolecular NMR</i>, vol. 51, no. 4. Springer Nature, pp. 477–485, 2011.
  ista: Lalli D, Schanda P, Chowdhury A, Retel J, Hiller M, Higman VA, Handel L, Agarwal
    V, Reif B, van Rossum B, Akbey Ü, Oschkinat H. 2011. Three-dimensional deuterium-carbon
    correlation experiments for high-resolution solid-state MAS NMR spectroscopy of
    large proteins. Journal of Biomolecular NMR. 51(4), 477–485.
  mla: Lalli, Daniela, et al. “Three-Dimensional Deuterium-Carbon Correlation Experiments
    for High-Resolution Solid-State MAS NMR Spectroscopy of Large Proteins.” <i>Journal
    of Biomolecular NMR</i>, vol. 51, no. 4, Springer Nature, 2011, pp. 477–85, doi:<a
    href="https://doi.org/10.1007/s10858-011-9578-1">10.1007/s10858-011-9578-1</a>.
  short: D. Lalli, P. Schanda, A. Chowdhury, J. Retel, M. Hiller, V.A. Higman, L.
    Handel, V. Agarwal, B. Reif, B. van Rossum, Ü. Akbey, H. Oschkinat, Journal of
    Biomolecular NMR 51 (2011) 477–485.
date_created: 2020-09-18T10:10:43Z
date_published: 2011-10-25T00:00:00Z
date_updated: 2021-01-12T08:19:29Z
day: '25'
doi: 10.1007/s10858-011-9578-1
extern: '1'
intvolume: '        51'
issue: '4'
language:
- iso: eng
month: '10'
oa_version: None
page: 477-485
publication: Journal of Biomolecular NMR
publication_identifier:
  issn:
  - 0925-2738
  - 1573-5001
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
status: public
title: Three-dimensional deuterium-carbon correlation experiments for high-resolution
  solid-state MAS NMR spectroscopy of large proteins
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 51
year: '2011'
...
---
_id: '8479'
abstract:
- lang: eng
  text: Multidimensional NMR spectroscopy is a well-established technique for the
    characterization of structure and fast-time-scale dynamics of highly populated
    ground states of biological macromolecules. The investigation of short-lived excited
    states that are important for molecular folding, misfolding and function, however,
    remains a challenge for modern biomolecular NMR techniques. Off-equilibrium real-time
    kinetic NMR methods allow direct observation of conformational or chemical changes
    by following peak positions and intensities in a series of spectra recorded during
    a kinetic event. Because standard multidimensional NMR methods required to yield
    sufficient atom-resolution are intrinsically time-consuming, many interesting
    phenomena are excluded from real-time NMR analysis. Recently, spatially encoded
    ultrafast 2D NMR techniques have been proposed that allow one to acquire a 2D
    NMR experiment within a single transient. In addition, when combined with the
    SOFAST technique, such ultrafast experiments can be repeated at high rates. One
    of the problems detected for such ultrafast protein NMR experiments is related
    to the heteronuclear decoupling during detection with interferences between the
    pulses and the oscillatory magnetic field gradients arising in this scheme. Here
    we present a method for improved ultrafast data acquisition yielding higher signal
    to noise and sharper lines in single-scan 2D NMR spectra. In combination with
    a fast-mixing device, the recording of 1H–15N correlation spectra with repetition
    rates of up to a few Hertz becomes feasible, enabling real-time studies of protein
    kinetics occurring on time scales down to a few seconds.
article_processing_charge: No
article_type: original
author:
- first_name: Maayan
  full_name: Gal, Maayan
  last_name: Gal
- first_name: Thomas
  full_name: Kern, Thomas
  last_name: Kern
- first_name: Paul
  full_name: Schanda, Paul
  id: 7B541462-FAF6-11E9-A490-E8DFE5697425
  last_name: Schanda
  orcid: 0000-0002-9350-7606
- first_name: Lucio
  full_name: Frydman, Lucio
  last_name: Frydman
- first_name: Bernhard
  full_name: Brutscher, Bernhard
  last_name: Brutscher
citation:
  ama: 'Gal M, Kern T, Schanda P, Frydman L, Brutscher B. An improved ultrafast 2D
    NMR experiment: Towards atom-resolved real-time studies of protein kinetics at
    multi-Hz rates. <i>Journal of Biomolecular NMR</i>. 2009;43:1-10. doi:<a href="https://doi.org/10.1007/s10858-008-9284-9">10.1007/s10858-008-9284-9</a>'
  apa: 'Gal, M., Kern, T., Schanda, P., Frydman, L., &#38; Brutscher, B. (2009). An
    improved ultrafast 2D NMR experiment: Towards atom-resolved real-time studies
    of protein kinetics at multi-Hz rates. <i>Journal of Biomolecular NMR</i>. Springer
    Nature. <a href="https://doi.org/10.1007/s10858-008-9284-9">https://doi.org/10.1007/s10858-008-9284-9</a>'
  chicago: 'Gal, Maayan, Thomas Kern, Paul Schanda, Lucio Frydman, and Bernhard Brutscher.
    “An Improved Ultrafast 2D NMR Experiment: Towards Atom-Resolved Real-Time Studies
    of Protein Kinetics at Multi-Hz Rates.” <i>Journal of Biomolecular NMR</i>. Springer
    Nature, 2009. <a href="https://doi.org/10.1007/s10858-008-9284-9">https://doi.org/10.1007/s10858-008-9284-9</a>.'
  ieee: 'M. Gal, T. Kern, P. Schanda, L. Frydman, and B. Brutscher, “An improved ultrafast
    2D NMR experiment: Towards atom-resolved real-time studies of protein kinetics
    at multi-Hz rates,” <i>Journal of Biomolecular NMR</i>, vol. 43. Springer Nature,
    pp. 1–10, 2009.'
  ista: 'Gal M, Kern T, Schanda P, Frydman L, Brutscher B. 2009. An improved ultrafast
    2D NMR experiment: Towards atom-resolved real-time studies of protein kinetics
    at multi-Hz rates. Journal of Biomolecular NMR. 43, 1–10.'
  mla: 'Gal, Maayan, et al. “An Improved Ultrafast 2D NMR Experiment: Towards Atom-Resolved
    Real-Time Studies of Protein Kinetics at Multi-Hz Rates.” <i>Journal of Biomolecular
    NMR</i>, vol. 43, Springer Nature, 2009, pp. 1–10, doi:<a href="https://doi.org/10.1007/s10858-008-9284-9">10.1007/s10858-008-9284-9</a>.'
  short: M. Gal, T. Kern, P. Schanda, L. Frydman, B. Brutscher, Journal of Biomolecular
    NMR 43 (2009) 1–10.
date_created: 2020-09-18T10:12:20Z
date_published: 2009-01-01T00:00:00Z
date_updated: 2021-01-12T08:19:33Z
day: '01'
doi: 10.1007/s10858-008-9284-9
extern: '1'
intvolume: '        43'
keyword:
- Spectroscopy
- Biochemistry
language:
- iso: eng
month: '01'
oa_version: None
page: 1-10
publication: Journal of Biomolecular NMR
publication_identifier:
  issn:
  - 0925-2738
  - 1573-5001
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
status: public
title: 'An improved ultrafast 2D NMR experiment: Towards atom-resolved real-time studies
  of protein kinetics at multi-Hz rates'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 43
year: '2009'
...
---
_id: '8485'
abstract:
- lang: eng
  text: High signal to noise is a necessity for the quantification of NMR spectral
    parameters to be translated into accurate and precise restraints on protein structure
    and dynamics. An important source of long-range structural information is obtained
    from 1H–1H residual dipolar couplings (RDCs) measured for weakly aligned molecules.
    For sensitivity reasons, such measurements are generally performed on highly deuterated
    protein samples. Here we show that high sensitivity is also obtained for protonated
    protein samples if the pulse schemes are optimized in terms of longitudinal relaxation
    efficiency and J-mismatch compensated coherence transfer. The new sensitivity-optimized
    quantitative J-correlation experiment yields important signal gains reaching factors
    of 1.5 to 8 for individual correlation peaks when compared to previously proposed
    pulse schemes.
article_processing_charge: No
article_type: original
author:
- first_name: Paul
  full_name: Schanda, Paul
  id: 7B541462-FAF6-11E9-A490-E8DFE5697425
  last_name: Schanda
  orcid: 0000-0002-9350-7606
- first_name: Ewen
  full_name: Lescop, Ewen
  last_name: Lescop
- first_name: Mirjam
  full_name: Falge, Mirjam
  last_name: Falge
- first_name: Rémy
  full_name: Sounier, Rémy
  last_name: Sounier
- first_name: Jérôme
  full_name: Boisbouvier, Jérôme
  last_name: Boisbouvier
- first_name: Bernhard
  full_name: Brutscher, Bernhard
  last_name: Brutscher
citation:
  ama: Schanda P, Lescop E, Falge M, Sounier R, Boisbouvier J, Brutscher B. Sensitivity-optimized
    experiment for the measurement of residual dipolar couplings between amide protons.
    <i>Journal of Biomolecular NMR</i>. 2007;38:47-55. doi:<a href="https://doi.org/10.1007/s10858-006-9138-2">10.1007/s10858-006-9138-2</a>
  apa: Schanda, P., Lescop, E., Falge, M., Sounier, R., Boisbouvier, J., &#38; Brutscher,
    B. (2007). Sensitivity-optimized experiment for the measurement of residual dipolar
    couplings between amide protons. <i>Journal of Biomolecular NMR</i>. Springer
    Nature. <a href="https://doi.org/10.1007/s10858-006-9138-2">https://doi.org/10.1007/s10858-006-9138-2</a>
  chicago: Schanda, Paul, Ewen Lescop, Mirjam Falge, Rémy Sounier, Jérôme Boisbouvier,
    and Bernhard Brutscher. “Sensitivity-Optimized Experiment for the Measurement
    of Residual Dipolar Couplings between Amide Protons.” <i>Journal of Biomolecular
    NMR</i>. Springer Nature, 2007. <a href="https://doi.org/10.1007/s10858-006-9138-2">https://doi.org/10.1007/s10858-006-9138-2</a>.
  ieee: P. Schanda, E. Lescop, M. Falge, R. Sounier, J. Boisbouvier, and B. Brutscher,
    “Sensitivity-optimized experiment for the measurement of residual dipolar couplings
    between amide protons,” <i>Journal of Biomolecular NMR</i>, vol. 38. Springer
    Nature, pp. 47–55, 2007.
  ista: Schanda P, Lescop E, Falge M, Sounier R, Boisbouvier J, Brutscher B. 2007.
    Sensitivity-optimized experiment for the measurement of residual dipolar couplings
    between amide protons. Journal of Biomolecular NMR. 38, 47–55.
  mla: Schanda, Paul, et al. “Sensitivity-Optimized Experiment for the Measurement
    of Residual Dipolar Couplings between Amide Protons.” <i>Journal of Biomolecular
    NMR</i>, vol. 38, Springer Nature, 2007, pp. 47–55, doi:<a href="https://doi.org/10.1007/s10858-006-9138-2">10.1007/s10858-006-9138-2</a>.
  short: P. Schanda, E. Lescop, M. Falge, R. Sounier, J. Boisbouvier, B. Brutscher,
    Journal of Biomolecular NMR 38 (2007) 47–55.
date_created: 2020-09-18T10:13:12Z
date_published: 2007-03-08T00:00:00Z
date_updated: 2021-01-12T08:19:36Z
day: '08'
doi: 10.1007/s10858-006-9138-2
extern: '1'
intvolume: '        38'
keyword:
- Spectroscopy
- Biochemistry
language:
- iso: eng
month: '03'
oa_version: None
page: 47-55
publication: Journal of Biomolecular NMR
publication_identifier:
  issn:
  - 0925-2738
  - 1573-5001
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
status: public
title: Sensitivity-optimized experiment for the measurement of residual dipolar couplings
  between amide protons
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 38
year: '2007'
...
---
_id: '8491'
abstract:
- lang: eng
  text: Fast multidimensional NMR with a time resolution of a few seconds provides
    a new tool for high throughput screening and site-resolved real-time studies of
    kinetic molecular processes by NMR. Recently we have demonstrated the feasibility
    to record protein 1H–15N correlation spectra in a few seconds of acquisition time
    using a new SOFAST-HMQC experiment (Schanda and Brutscher (2005) J. Am. Chem.
    Soc. 127, 8014). Here, we investigate in detail the performance of SOFAST-HMQC
    to record 1H–15N and 1H−13C correlation spectra of proteins of different size
    and at different magnetic field strengths. Compared to standard 1H–15N correlation
    experiments SOFAST-HMQC provides a significant gain in sensitivity, especially
    for fast repetition rates. Guidelines are provided on how to set up SOFAST-HMQC
    experiments for a given protein sample. In addition, an alternative pulse scheme,
    IPAP-SOFAST-HMQC is presented that allows application on NMR spectrometers equipped
    with cryogenic probes, and fast measurement of one-bond 1H–13C and 1H–15N scalar
    and residual dipolar coupling constants.
article_processing_charge: No
article_type: original
author:
- first_name: Paul
  full_name: Schanda, Paul
  id: 7B541462-FAF6-11E9-A490-E8DFE5697425
  last_name: Schanda
  orcid: 0000-0002-9350-7606
- first_name: Ēriks
  full_name: Kupče, Ēriks
  last_name: Kupče
- first_name: Bernhard
  full_name: Brutscher, Bernhard
  last_name: Brutscher
citation:
  ama: Schanda P, Kupče Ē, Brutscher B. SOFAST-HMQC experiments for recording two-dimensional
    deteronuclear correlation spectra of proteins within a few seconds. <i>Journal
    of Biomolecular NMR</i>. 2005;33(4):199-211. doi:<a href="https://doi.org/10.1007/s10858-005-4425-x">10.1007/s10858-005-4425-x</a>
  apa: Schanda, P., Kupče, Ē., &#38; Brutscher, B. (2005). SOFAST-HMQC experiments
    for recording two-dimensional deteronuclear correlation spectra of proteins within
    a few seconds. <i>Journal of Biomolecular NMR</i>. Springer Nature. <a href="https://doi.org/10.1007/s10858-005-4425-x">https://doi.org/10.1007/s10858-005-4425-x</a>
  chicago: Schanda, Paul, Ēriks Kupče, and Bernhard Brutscher. “SOFAST-HMQC Experiments
    for Recording Two-Dimensional Deteronuclear Correlation Spectra of Proteins within
    a Few Seconds.” <i>Journal of Biomolecular NMR</i>. Springer Nature, 2005. <a
    href="https://doi.org/10.1007/s10858-005-4425-x">https://doi.org/10.1007/s10858-005-4425-x</a>.
  ieee: P. Schanda, Ē. Kupče, and B. Brutscher, “SOFAST-HMQC experiments for recording
    two-dimensional deteronuclear correlation spectra of proteins within a few seconds,”
    <i>Journal of Biomolecular NMR</i>, vol. 33, no. 4. Springer Nature, pp. 199–211,
    2005.
  ista: Schanda P, Kupče Ē, Brutscher B. 2005. SOFAST-HMQC experiments for recording
    two-dimensional deteronuclear correlation spectra of proteins within a few seconds.
    Journal of Biomolecular NMR. 33(4), 199–211.
  mla: Schanda, Paul, et al. “SOFAST-HMQC Experiments for Recording Two-Dimensional
    Deteronuclear Correlation Spectra of Proteins within a Few Seconds.” <i>Journal
    of Biomolecular NMR</i>, vol. 33, no. 4, Springer Nature, 2005, pp. 199–211, doi:<a
    href="https://doi.org/10.1007/s10858-005-4425-x">10.1007/s10858-005-4425-x</a>.
  short: P. Schanda, Ē. Kupče, B. Brutscher, Journal of Biomolecular NMR 33 (2005)
    199–211.
date_created: 2020-09-18T10:13:59Z
date_published: 2005-12-01T00:00:00Z
date_updated: 2021-01-12T08:19:38Z
day: '01'
doi: 10.1007/s10858-005-4425-x
extern: '1'
intvolume: '        33'
issue: '4'
keyword:
- Spectroscopy
- Biochemistry
language:
- iso: eng
month: '12'
oa_version: None
page: 199-211
publication: Journal of Biomolecular NMR
publication_identifier:
  issn:
  - 0925-2738
  - 1573-5001
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
status: public
title: SOFAST-HMQC experiments for recording two-dimensional deteronuclear correlation
  spectra of proteins within a few seconds
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 33
year: '2005'
...
