Related ArticlesAssignment of the natural abundance 13C spectrum of proteins using 13C 1H-detected heteronuclear multiple-bond correlation NMR spectroscopy: structural information and stereospecific assignments from two- and three-bond carbon-hydrogen coupling constants.
Biochemistry. 1991 Oct 29;30(43):10457-66
Authors: Hansen PE
Proton-detected heteronuclear multiple-bond 1H-13C correlations (HMBC) previously have been used for assignment purposes in a variety of isotopically enriched proteins. In the present study it is demonstrated that the technique yields an almost complete assignment of the natural abundance 13C spectrum of the protein basic pancreatic trypsin inhibitor (BPTI). In addition, the technique permits additional 1H assignments to be made for this well-studied protein. The intensities of observed correlations permit rough estimates to be made of 2J(C,H) and 3J(C,H) coupling constants. These couplings can be used for conformational studies of both the side chains and the backbone. Intra- and interresidue coupling between C alpha H and the carbonyl carbon provides information about the backbone angles psi and phi. Side-chain conformations can be determined from both two- and three-bond carbon-hydrogen coupling constants. The present study of BPTI together with its known high-precision solution structure yields an experimental correlation between resonance intensities and secondary structure. The spectra show the potential of the method in analyzing 13C NMR spectra of nonenriched proteins. The method yields 13C NMR chemical shifts, which are versatile parameters to be used to monitor structural changes, titrations, etc.
Identifying Guanosine Self Assembly at Natural Isotopic Abundance by High-Resolution 1H and 13C Solid-State NMR Spectroscopy
Identifying Guanosine Self Assembly at Natural Isotopic Abundance by High-Resolution 1H and 13C Solid-State NMR Spectroscopy
Amy L. Webber, Stefano Masiero, Silvia Pieraccini, Jonathan C. Burley, Andrew S. Tatton, Dinu Iuga, Tran N. Pham, Gian Piero Spada and Steven P. Brown
http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/jacsat/0/jacsat.ahead-of-print/ja206516u/aop/images/medium/ja-2011-06516u_0007.gif
Journal of the American Chemical Society
DOI: 10.1021/ja206516u
http://feeds.feedburner.com/~ff/acs/jacsat?d=yIl2AUoC8zA...
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Fast NMR Data Acquisition From Bicelles Containing a Membrane-Associated Peptide at Natural-Abundance.
Fast NMR Data Acquisition From Bicelles Containing a Membrane-Associated Peptide at Natural-Abundance.
Fast NMR Data Acquisition From Bicelles Containing a Membrane-Associated Peptide at Natural-Abundance.
J Phys Chem B. 2011 Sep 22;
Authors: Yamamoto K, Vivekanandan S, Ramamoorthy A
Abstract
In spite of recent technological advances in NMR spectroscopy, its low sensitivity continues to be a major limitation particularly for the structural studies of membrane proteins. The need for a large quantity of a membrane protein and acquisition of...
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More AccurateJCHCoupling Measurement in the Presence ofJHHStrong Coupling in Natural Abundance
More AccurateJCHCoupling Measurement in the Presence ofJHHStrong Coupling in Natural Abundance
Publication year: 2011
Source: Journal of Magnetic Resonance, Available online 22 September 2011</br>
Bingwu*Yu, Hugo*van Ingen, Subramanian*Vivekanandan, Christoph*Rademacher, Scott E.*Norris, ...</br>
Jcouplings are essential for measuring RDCs (residual dipolar couplings), now routinely used to deduce molecular structure and dynamics of glycans and proteins. Accurate measurement ofJCHis critical for RDCs to reflect the true structure and dynamics in the molecule of interest. We report...
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5D 13C-detected experiments for backbone assignment of unstructured proteins with a very low signal dispersion
5D 13C-detected experiments for backbone assignment of unstructured proteins with a very low signal dispersion
Abstract Two novel 5D NMR experiments (CACONCACO, NCOCANCO) for backbone assignment of disordered proteins are presented. The pulse sequences exploit relaxation properties of the unstructured proteins and combine the advantages of 13C-direct detection, non-uniform sampling, and longitudinal relaxation optimization to maximize the achievable resolution and minimize the experimental time. The pulse sequences were successfully tested on the sample of partially disordered delta...
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Configurational assignment of D- and L-isovalines in intact, natural, and synthetic p
Configurational assignment of D- and L-isovalines in intact, natural, and synthetic peptides by 2D-NMR spectroscopy.
Related Articles Configurational assignment of D- and L-isovalines in intact, natural, and synthetic peptides by 2D-NMR spectroscopy.
Chem Biodivers. 2010 Jun;7(6):1612-24
Authors: De Zotti M, Schievano E, Mammi S, Kaptein B, Broxterman QB, Singh SB, Brückner H, Toniolo C
We investigated, by means of 2D-NMR, the naturally occurring and chemically synthesized 16-mer integramides A and B, which belong to a group of bioactive, fungal...
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[NMR paper] Extensive 1H NMR resonance assignment of proteins using natural abundance gradient-en
Extensive 1H NMR resonance assignment of proteins using natural abundance gradient-enhanced 13C-1H correlation spectroscopy.
http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--linkinghub.elsevier.com-ihub-images-PubMedLink.gif Related Articles Extensive 1H NMR resonance assignment of proteins using natural abundance gradient-enhanced 13C-1H correlation spectroscopy.
FEBS Lett. 1993 Nov 1;333(3):251-6
Authors: Medvedeva S, Simorre JP, Brutscher B, Guerlesquin F, Marion D
The reliability and completeness of 1H NMR resonance assignment can...
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[NMR paper] 1H- and natural abundance 15N-NMR studies of a derivative of a rabies glycoprotein fr
1H- and natural abundance 15N-NMR studies of a derivative of a rabies glycoprotein fragment.
Related Articles 1H- and natural abundance 15N-NMR studies of a derivative of a rabies glycoprotein fragment.
Biopolymers. 1991 May;31(6):713-23
Authors: Molinari H, Consonni R, Pegna M, Zetta L, Neri P, Niccolai N, Bonci A, Lozzi L, Rustici M, Scarselli M
Using a combination of one- and two-dimensional methods, 1H- and 15N-nmr spectroscopy has been employed to perform the complete assignment and the structural determination of the immunogenic...
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[NMR paper] Assignment of the natural abundance 13C spectrum of proteins using 13C 1H-detected he
Assignment of the natural abundance 13C spectrum of proteins using 13C 1H-detected heteronuclear multiple-bond correlation NMR spectroscopy: structural information and stereospecific assignments from two- and three-bond carbon-hydrogen coupling constants.
Related Articles Assignment of the natural abundance 13C spectrum of proteins using 13C 1H-detected heteronuclear multiple-bond correlation NMR spectroscopy: structural information and stereospecific assignments from two- and three-bond carbon-hydrogen coupling constants.
Biochemistry. 1991 Oct 29;30(43):10457-66
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