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Nmrpipe nmrdraw

Manufactured by Bruker
Sourced in Germany

NMRPipe/NMRDraw is a software suite developed by Bruker for the processing and analysis of nuclear magnetic resonance (NMR) spectroscopy data. It provides tools for import, processing, visualization, and analysis of NMR spectra.

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3 protocols using nmrpipe nmrdraw

1

NMR Spectroscopy of Organic Compounds

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Nuclear magnetic resonance (NMR) spectra were acquired at 283 K on a Bruker DRX-500 spectrometer equipped with a triple resonance probe with an x, y, and z-shielded pulsed-field gradient coil. Two-dimensional (2D) NMR spectra were recorded in a phase-sensitive mode using time proportional phase increment for quadrature detection in the t1 domain. Total correlation spectroscopy (TOCSY)22 using a dipsi-2 spinlock pulse sequence with a mixing time of 70 ms and nuclear overhauser enhancement spectroscopy (NOESY)23 with mixing times of 250–600 ms were performed. All NMR spectra were acquired with 2048 complex data points in t2 and 256 increments in the t1 dimension, with 64 scans per each increment. All NMR data were processed using nmrPipe/nmrDraw or XWIN-NMR software (Bruker Instruments, Karlsruhe, Germany) and analyzed using the Sparky 3.95 program.
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2

Multinuclear NMR Spectroscopy of Biomolecules

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One-dimensional 31P NMR experiments were performed on a Bruker Avance spectrometer with a homebuilt 1H/31P double-resonance probe [53 (link)], at a 1H resonance frequency of 700 MHz. The 31P NMR spectra were obtained at 35°C by direct single pulse excitation with a radio frequency (RF) field strength of 50 kHz, 10 ms acquisition time, 2 s recycle delay, and co-addition of 64 transients. Continuous wave 1H decoupling, with RF field strength of 25 kHz, was applied during data acquisition. 31P chemical shifts were externally referenced to phosphoric acid solution at 0 ppm.
Two-dimensional 1H/15N separated local field (SLF) NMR experiments were performed using the SAMPI4 pulse sequence [54 (link)], on a Bruker Avance III HD spectrometer with a home-built low-E 1H/15N double-resonance probe [55 (link)], at a 1H resonance frequency of 900 MHz. Signal averaging required 64–512 transients for each of 64–128 t1 increment. The NMR data were processed using Bruker Topspin 4.0.7 and NMRPipe/NMRDraw [56 (link)]. The data were zero-filled to form a final 2048 × 2048 matrix. 15N chemical shifts were externally referenced to 15N labeled ammonium sulfate powder at 26.8 ppm.
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3

NMR Spectroscopy Protocols for Protein Structure

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All NMR experiments were recorded at 10 °C for R2* and 4 °C for PRR2* on a Bruker 800 MHz spectrometer equipped with a cryogenic probe. All spectra were processed with topspin 3.5pl7 (Bruker) and NMRPipe/NMRDraw. The assignment of tau PRR2* and R2* was based on a series of 3D spectra using a uniformly 15N,13C-labeled sample including HNCACB, CBCA(CO)NH, HNCO, and HN(CA)CO. 1H-15N HSQC experiments were recorded with 8 scans, a recycle delay of 1.0 s, 3072 (t2) × 200 (t1) complex data points, and a spectral width of 16 ppm in the 1H dimension and 22 ppm in the 15N dimension. HNCACB and CBCACONH were recorded with 8 scans, 3072 (t3) × 75 (t1) × 256 (t2) data points, and a spectral width of 10 ppm in the 1H dimension, 22 ppm in the 15N dimension, and 60 ppm in the 13C dimension. HNCO and HN(CA)CO were recorded with 8 scans and 32 scans, respectively; 3072 (t3) × 74 (t1) × 128 (t2) data points; and a spectral width of 10 ppm in the 1H dimension, 22 ppm in the 15N dimension, and 13 ppm in the 13C. Linear prediction and zero-filing were used to obtain complex data matrixes before Fourier transformation to improve resolution.
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