[CNS Yahoo group] Double protonated His side chains have charge +1 independent of pH
Double protonated His side chains have charge +1 independent of pH
Hi all, I am using ccpn/aria/cns combination for my structural work. I discovered a probably bad fact during the aria/cns structure calculation. In the ccpn
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nmrlearner
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01-20-2011 03:28 AM
Residual dipolar couplings: are multiple independent alignments always possible?
Residual dipolar couplings: are multiple independent alignments always possible?
Abstract RDCs for the 14 kDa protein hen egg-white lysozyme (HEWL) have been measured in eight different alignment media. The elongated shape and strongly positively charged surface of HEWL appear to limit the protein to four main alignment orientations. Furthermore, low levels of alignment and the proteinā??s interaction with some alignment media increases the experimental error. Together with heterogeneity across the alignment media arising from constraints on temperature, pH and ionic strength for some...
nmrlearner
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12-26-2010 04:43 AM
Pair Distribution Function Analysis and Solid State NMR Studies of Silicon Electrodes for Lithium Ion Batteries: Understanding the (De)lithiation Mechanisms
Pair Distribution Function Analysis and Solid State NMR Studies of Silicon Electrodes for Lithium Ion Batteries: Understanding the (De)lithiation Mechanisms
Baris Key, Mathieu Morcrette, Jean-Marie Tarascon and Clare P. Grey
http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/jacsat/0/jacsat.ahead-of-print/ja108085d/aop/images/medium/ja-2010-08085d_0006.gif
Journal of the American Chemical Society
DOI: 10.1021/ja108085d
http://feeds.feedburner.com/~ff/acs/jacsat?d=yIl2AUoC8zA
http://feeds.feedburner.com/~r/acs/jacsat/~4/WYK7o0vOALs
nmrlearner
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12-21-2010 02:14 AM
[NMR paper] NMR evidence for independent domain structures in zoocin A, an antibacterial exoenzym
NMR evidence for independent domain structures in zoocin A, an antibacterial exoenzyme.
Related Articles NMR evidence for independent domain structures in zoocin A, an antibacterial exoenzyme.
Biochem Biophys Res Commun. 2004 Apr 30;317(2):527-30
Authors: Liang Q, Simmonds RS, Timkovich R
NMR was used to obtain spectroscopic evidence supporting a two domain model for zoocin A in which an N-terminal catalytic domain is linked by a threonine-proline rich linker to a target recognition domain responsible for recognizing the cell wall of bacteria...
nmrlearner
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11-24-2010 09:51 PM
[NMR paper] Structure distribution in an elastin-mimetic peptide (VPGVG)3 investigated by solid-s
Structure distribution in an elastin-mimetic peptide (VPGVG)3 investigated by solid-state NMR.
Related Articles Structure distribution in an elastin-mimetic peptide (VPGVG)3 investigated by solid-state NMR.
J Am Chem Soc. 2004 Apr 7;126(13):4199-210
Authors: Yao XL, Hong M
Elastin is an extracellular-matrix protein that imparts elasticity to tissues. We have used solid-state NMR to determine a number of distances and torsion angles in an elastin-mimetic peptide, (VPGVG)3, to understand the structural basis of elasticity. C-H and C-N distances...
[NMR paper] The mechanism of aluminum-independent G-protein activation by fluoride and magnesium.
The mechanism of aluminum-independent G-protein activation by fluoride and magnesium. 31P NMR spectroscopy and fluorescence kinetic studies.
Related Articles The mechanism of aluminum-independent G-protein activation by fluoride and magnesium. 31P NMR spectroscopy and fluorescence kinetic studies.
J Biol Chem. 1993 Feb 5;268(4):2393-402
Authors: Antonny B, Sukumar M, Bigay J, Chabre M, Higashijima T
With magnesium present, fluoride and aluminum ions activate heterotrimeric G-proteins by forming AlFx complexes that mimic the gamma phosphate of...
nmrlearner
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08-21-2010 11:53 PM
Composite Alignment Media for the Measurement of Independent Sets of NMR Residual Dipolar Couplings
Composite Alignment Media for the Measurement of Independent Sets of NMR Residual Dipolar Couplings
Ke Ruan and Joel R. Tolman
J. Am. Chem. Soc.; 2005; 127(43) pp 15032 - 15033;
Abstract:
The measurement of independent sets of NMR residual dipolar couplings (RDCs) in multiple alignment media can provide a detailed view of biomolecular structure and dynamics, yet remains experimentally challenging. It is demonstrated here that independent sets of RDCs can be measured for ubiquitin using just a single alignment medium composed of aligned bacteriophage Pf1 particles embedded in a...