Combinatorial triple-selective labeling as a tool to assist membrane protein backbone resonance assignment
Combinatorial triple-selective labeling as a tool to assist membrane protein backbone resonance assignment
Abstract Obtaining NMR assignments for slowly tumbling molecules such as detergent-solubilized membrane proteins is often compromised by low sensitivity as well as spectral overlap. Both problems can be addressed by amino-acid specific isotope labeling in conjunction with 15Nâ??1H correlation experiments. In this work an extended combinatorial selective in vitro labeling scheme is proposed that seeks to reduce the number of samples required for assignment. Including three...
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01-21-2012 06:26 PM
Error tolerant NMR backbone resonance assignment and automated structure generation.
Error tolerant NMR backbone resonance assignment and automated structure generation.
Error tolerant NMR backbone resonance assignment and automated structure generation.
J Bioinform Comput Biol. 2011 Feb;9(1):15-41
Authors: Alipanahi B, Gao X, Karakoc E, Li SC, Balbach F, Feng G, Donaldson L, Li M
Error tolerant backbone resonance assignment is the cornerstone of the NMR structure determination process. Although a variety of assignment approaches have been developed, none works sufficiently well on noisy fully automatically picked peaks to enable...
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02-18-2011 08:07 PM
RDC derived protein backbone resonance assignment using fragment assembly
RDC derived protein backbone resonance assignment using fragment assembly
Abstract Experimental residual dipolar couplings (RDCs) in combination with structural models have the potential for accelerating the protein backbone resonance assignment process because RDCs can be measured accurately and interpreted quantitatively. However, this application has been limited due to the need for very high-resolution structural templates. Here, we introduce a new approach to resonance assignment based on optimal agreement between the experimental and calculated RDCs from a structural template that...
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12-31-2010 08:38 PM
Pseudo-4D triple resonance experiments to resolve HN overlap in the backbone assignment of unfolded proteins
Pseudo-4D triple resonance experiments to resolve HN overlap in the backbone assignment of unfolded proteins
Abstract The solution NMR resonance assignment of the protein backbone is most commonly carried out using triple resonance experiments that involve 15N and 1HN resonances. The assignment becomes problematic when there is resonance overlap of 15Nâ??1HN cross peaks. For such residues, one cannot unambiguously link the â??leftâ?? side of the NH root to the â??rightâ?? side, and the residues associated with such overlapping HN resonances remain often unassigned. Here we present a...
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12-31-2010 08:38 PM
[NMR paper] GANA--a genetic algorithm for NMR backbone resonance assignment.
GANA--a genetic algorithm for NMR backbone resonance assignment.
Related Articles GANA--a genetic algorithm for NMR backbone resonance assignment.
Nucleic Acids Res. 2005;33(14):4593-601
Authors: Lin HN, Wu KP, Chang JM, Sung TY, Hsu WL
NMR data from different experiments often contain errors; thus, automated backbone resonance assignment is a very challenging issue. In this paper, we present a method called GANA that uses a genetic algorithm to automatically perform backbone resonance assignment with a high degree of precision and recall....
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11-24-2010 11:14 PM
[NMR paper] Double and triple resonance NMR methods for protein assignment.
Double and triple resonance NMR methods for protein assignment.
Related Articles Double and triple resonance NMR methods for protein assignment.
Methods Mol Biol. 1997;60:29-52
Authors: Whitehead B, Craven CJ, Waltho JP
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08-22-2010 03:31 PM
[NMR paper] Double and triple resonance NMR methods for protein assignment.
Double and triple resonance NMR methods for protein assignment.
Related Articles Double and triple resonance NMR methods for protein assignment.
Methods Mol Biol. 1997;60:29-52
Authors: Whitehead B, Craven CJ, Waltho JP
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08-22-2010 03:03 PM
[NMR paper] Solid-state NMR triple-resonance backbone assignments in a protein.
Solid-state NMR triple-resonance backbone assignments in a protein.
Related Articles Solid-state NMR triple-resonance backbone assignments in a protein.
J Biomol NMR. 1999 Apr;13(4):337-42
Authors: Tan WM, Gu Z, Zeri AC, Opella SJ
Triple-resonance solid-state NMR spectroscopy is demonstrated to sequentially assign the 13C' and 15N amide backbone resonances of adjacent residues in an oriented protein sample. The observed 13C' chemical shift frequency provides an orientational constraint complementary to those measured from the 1H and 15N amide...