Use of 1H NMR to measure intracellular metabolite levels during growth and asexual sporulation in Neurospora crassa.
Use of 1H NMR to measure intracellular metabolite levels during growth and asexual sporulation in Neurospora crassa.
Use of 1H NMR to measure intracellular metabolite levels during growth and asexual sporulation in Neurospora crassa.
Eukaryot Cell. 2011 Apr 1;
Authors: Kim JD, Kaiser K, Larive CK, Borkovich KA
Conidiation is an asexual sporulation pathway that is a response to adverse conditions and is the main mode of dispersal utilized by filamentous fungal pathogens for reestablishment in a more favorable environment. Heterotrimeric G proteins...
nmrlearner
Journal club
0
04-05-2011 10:22 PM
Optimum levels of exchangeable protons in perdeuterated proteins for proton detection in MAS solid-state NMR spectroscopy
Optimum levels of exchangeable protons in perdeuterated proteins for proton detection in MAS solid-state NMR spectroscopy
Abstract We present a systematic study of the effect of the level of exchangeable protons on the observed amide proton linewidth obtained in perdeuterated proteins. Decreasing the amount of D2O employed in the crystallization buffer from 90 to 0%, we observe a fourfold increase in linewidth for both 1H and 15N resonances. At the same time, we find a gradual increase in the signal-to-noise ratio (SNR) for 1Hâ??15N correlations in dipolar coupling based experiments for...
nmrlearner
Journal club
0
01-09-2011 12:46 PM
The predictive accuracy of secondary chemical shifts is more affected by protein seco
Abstract Biomolecular NMR spectroscopy frequently employs estimates of protein secondary structure using secondary chemical shift (Î?δ) values, measured as the difference between experimental and random coil chemical shifts (RCCS). Most published random coil data have been determined in aqueous conditions, reasonable for non-membrane proteins, but potentially less relevant for membrane proteins. Two new RCCS sets are presented here, determined in dimethyl sulfoxide (DMSO) and chloroform:methanol:water (4:4:1 by volume) at 298 K. A web-based program, CS-CHEMeleon, has been implemented to...