Related ArticlesAmino acid-type edited NMR experiments for methyl-methyl distance measurement in 13C-labeled proteins.
J Am Chem Soc. 2004 Aug 11;126(31):9584-91
Authors: Van Melckebeke H, Simorre JP, Brutscher B
New NMR experiments are presented for the measurement of methyl-methyl distances in (13)C-labeled proteins from a series of amino acid-type separated 2D or 3D NOESY spectra. Hadamard amino acid-type encoding of the proximal methyl groups provides the high spectral resolution required for unambiguous methyl-methyl NOE assignment, which is particularly important for fast global fold determination of proteins. The experiments can be applied to a wide range of protein systems, as exemplified for two small proteins, ubiquitin and MerAa, and the 30 kDa BRP-Blm complex.
Simultaneous measurement of 1Hâ??15N and Methyl 1Hmâ??13Cm residual dipolar couplings in large proteins
Simultaneous measurement of 1Hâ??15N and Methyl 1Hmâ??13Cm residual dipolar couplings in large proteins
Abstract A two-dimensional TROSY-based SIM-13Cmâ??1Hm/1Hâ??15N NMR experiment for simultaneous measurements of methyl 1 D CH and backbone amide 1 D NH residual dipolar couplings (RDC) in {U-; Ileδ1-; Leu,Val-}-labeled samples of large proteins is described. Significant variation in the alignment tensor of the 82-kDa enzyme Malate synthase G is observed as a function of only slight changes in experimental conditions. The SIM-13Cmâ??1Hm/1Hâ??15N data sets provide convenient means...
nmrlearner
Journal club
0
09-30-2011 08:01 PM
Automated sequence- and stereo-specific assignment of methyl-labeled proteins by paramagnetic relaxation and methylâ??methyl nuclear overhauser enhancement spectroscopy
Automated sequence- and stereo-specific assignment of methyl-labeled proteins by paramagnetic relaxation and methylâ??methyl nuclear overhauser enhancement spectroscopy
Abstract Methyl-transverse relaxation optimized spectroscopy is rapidly becoming the preferred NMR technique for probing structure and dynamics of very large proteins up to ~1 MDa in molecular size. Data interpretation, however, necessitates assignment of methyl groups which still presents a very challenging and time-consuming process. Here we demonstrate that, in combination with a known 3D structure, paramagnetic...
nmrlearner
Journal club
0
09-26-2011 06:42 AM
Structure Calculation from Unambiguous Long-Range Amide and Methyl (1)H-(1)H Distance Restraints for a Microcrystalline Protein with MAS Solid-State NMR Spectroscopy.
Structure Calculation from Unambiguous Long-Range Amide and Methyl (1)H-(1)H Distance Restraints for a Microcrystalline Protein with MAS Solid-State NMR Spectroscopy.
Structure Calculation from Unambiguous Long-Range Amide and Methyl (1)H-(1)H Distance Restraints for a Microcrystalline Protein with MAS Solid-State NMR Spectroscopy.
J Am Chem Soc. 2011 Mar 24;
Authors: Linser R, Bardiaux B, Higman V, Fink U, Reif B
Magic-angle spinning (MAS) solid-state NMR becomes an increasingly important tool for the determination of structures of membrane...
nmrlearner
Journal club
0
03-26-2011 07:00 PM
Structure Calculation from Unambiguous Long-Range Amide and Methyl 1H-1H Distance Restraints for a Microcrystalline Protein with MAS Solid-State NMR Spectroscopy
Structure Calculation from Unambiguous Long-Range Amide and Methyl 1H-1H Distance Restraints for a Microcrystalline Protein with MAS Solid-State NMR Spectroscopy
Rasmus Linser, Benjamin Bardiaux, Victoria Higman, Uwe Fink and Bernd Reif
http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/jacsat/0/jacsat.ahead-of-print/ja110222h/aop/images/medium/ja-2010-10222h_0004.gif
Journal of the American Chemical Society
DOI: 10.1021/ja110222h
http://feeds.feedburner.com/~ff/acs/jacsat?d=yIl2AUoC8zA
http://feeds.feedburner.com/~r/acs/jacsat/~4/Dh0EBf8PwcY
nmrlearner
Journal club
0
03-24-2011 08:02 PM
Time-shared HSQC-NOESY for accurate distance constraints measured at high-field in 15N-13C-ILV methyl labeled proteins
Time-shared HSQC-NOESY for accurate distance constraints measured at high-field in 15N-13C-ILV methyl labeled proteins
Abstract We present a time-shared 3D HSQC-NOESY experiment that enables one to simultaneously record 13C- and 15N-dispersed spectra in Ile, Leu and Val (ILV) methyl-labeled samples. This experiment is designed to delineate the two spectra which would otherwise overlap with one another when acquired together. These spectra display nOe correlations in the detected proton dimension, i.e. with maximum resolution. This is in contrast to NOESY-HSQC types of experiments that...
nmrlearner
Journal club
0
01-09-2011 12:46 PM
[NMR paper] Methyl groups as probes for proteins and complexes in in-cell NMR experiments.
Methyl groups as probes for proteins and complexes in in-cell NMR experiments.
Related Articles Methyl groups as probes for proteins and complexes in in-cell NMR experiments.
J Am Chem Soc. 2004 Jun 9;126(22):7119-25
Authors: Serber Z, Straub W, Corsini L, Nomura AM, Shimba N, Craik CS, Ortiz de Montellano P, Dötsch V
Studying protein components of large intracellular complexes by in-cell NMR has so far been impossible because the backbone resonances are unobservable due to their slow tumbling rates. We describe a methodology that overcomes...
nmrlearner
Journal club
0
11-24-2010 09:51 PM
High-resolution methyl edited GFT NMR experiments for protein resonance assignments a
High-resolution methyl edited GFT NMR experiments for protein resonance assignments and structure determination
Abstract Three-dimensional (3D) structure determination of proteins is benefitted by long-range distance constraints comprising the methyl groups, which constitute the hydrophobic core of proteins. However, in methyl groups (of Ala, Ile, Leu, Met, Thr and Val) there is a significant overlap of 13C and 1H chemical shifts. Such overlap can be resolved using the recently proposed (3,2)D HCCH-COSY, a G-matrix Fourier transform (GFT) NMR based experiment, which facilitates editing...
nmrlearner
Journal club
0
09-18-2010 04:53 AM
High-resolution methyl edited GFT NMR experiments for protein resonance assignments a
High-resolution methyl edited GFT NMR experiments for protein resonance assignments and structure determination.
Related Articles High-resolution methyl edited GFT NMR experiments for protein resonance assignments and structure determination.
J Biomol NMR. 2010 Sep 14;
Authors: Jaipuria G, Thakur A, D'Silva P, Atreya HS
Three-dimensional (3D) structure determination of proteins is benefitted by long-range distance constraints comprising the methyl groups, which constitute the hydrophobic core of proteins. However, in methyl groups (of Ala, Ile,...