Related ArticlesWater molecules in DNA recognition I: hydration lifetimes of trp operator DNA in solution measured by NMR spectroscopy.
J Mol Biol. 1998 Oct 2;282(4):847-58
Authors: Sunnerhagen M, Denisov VP, Venu K, Bonvin AM, Carey J, Halle B, Otting G
The present NMR study investigates the residence times of the hydration water molecules associated with uncomplexed trp operator DNA in solution by measuring intermolecular nuclear Overhauser effects (NOE) between water and DNA protons, and the nuclear magnetic relaxation dispersion (NMRD) of the water 2H and 17O resonances. Both methods indicate that the hydration water molecules exchange with bulk water on the sub-nanosecond time scale at 4 degreesC. No evidence was obtained for water molecules bound with longer residence times. In particular, the water molecules at the sites of interfacial hydration in the trp repressor/operator complex do not seem kinetically stabilized in the uncomplexed DNA. Analysis of the crystal structures of two different trp repressor/operator complexes shows very similar structural environments for the water molecules mediating specific contacts between the protein and the DNA, whereas much larger variations are observed for the location of corresponding water molecules detected in the crystal structure of an uncomplexed trp operator DNA duplex. Therefore, it appears unlikely that the hydration characteristics of the uncomplexed DNA target would be a major determinant of trp repressor/operator recognition.
[NMR paper] Detection of dynamic water molecules in a microcrystalline sample of the SH3 domain o
Detection of dynamic water molecules in a microcrystalline sample of the SH3 domain of alpha-spectrin by MAS solid-state NMR.
Related Articles Detection of dynamic water molecules in a microcrystalline sample of the SH3 domain of alpha-spectrin by MAS solid-state NMR.
J Biomol NMR. 2005 Apr;31(4):295-310
Authors: Chevelkov V, Faelber K, Diehl A, Heinemann U, Oschkinat H, Reif B
Water molecules are a major determinant of protein stability and are important for understanding protein-protein interactions. We present two experiments which allow to...
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[NMR paper] A high-resolution NMR study of long-lived water molecules in both oxidation states of
A high-resolution NMR study of long-lived water molecules in both oxidation states of a minimal cytochrome c.
Related Articles A high-resolution NMR study of long-lived water molecules in both oxidation states of a minimal cytochrome c.
Biochemistry. 2003 Apr 1;42(12):3457-63
Authors: Bertini I, Ghosh K, Rosato A, Vasos PR
The interaction of water with oxidized and reduced cytochrome c from the Gram-positive bacterium Bacillus pasteurii (a 71-amino acid long monoheme cytochrome) is investigated through CLEANEX experiments and (15)N-edited...
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[NMR paper] Quantitative measurement of water diffusion lifetimes at a protein/DNA interface by N
Quantitative measurement of water diffusion lifetimes at a protein/DNA interface by NMR.
Related Articles Quantitative measurement of water diffusion lifetimes at a protein/DNA interface by NMR.
J Biomol NMR. 2001 Jun;20(2):111-26
Authors: Gruschus JM, Ferretti JA
Hydration site lifetimes of slowly diffusing water molecules at the protein/DNA interface of the vnd/NK-2 homeodomain DNA complex were determined using novel three-dimensional NMR techniques. The lifetimes were calculated using the ratios of ROE and NOE cross-relaxation rates between...
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[NMR paper] Protein hydration and location of water molecules in oxidized horse heart cytochrome
Protein hydration and location of water molecules in oxidized horse heart cytochrome c by (1)H NMR.
Related Articles Protein hydration and location of water molecules in oxidized horse heart cytochrome c by (1)H NMR.
J Magn Reson. 2000 Nov;147(1):1-8
Authors: Bertini I, Huber JG, Luchinat C, Piccioli M
The hydration properties of the oxidized form of horse heart cytochrome c have been studied by (1)H NMR spectroscopy. Two-dimensional, homonuclear ePHOGSY-NOESY experiments are used to map water-protein interactions. The detected NOEs reveal...
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[NMR paper] Hydration water molecules of nucleotide-free RNase T1 studied by NMR spectroscopy in
Hydration water molecules of nucleotide-free RNase T1 studied by NMR spectroscopy in solution.
Related Articles Hydration water molecules of nucleotide-free RNase T1 studied by NMR spectroscopy in solution.
J Biomol NMR. 1998 Jan;11(1):1-15
Authors: Pfeiffer S, Spitzner N, Löhr F, Rüterjans H
The hydration of uncomplexed RNase T1 was investigated by NMR spectroscopy at pH 5.5 and 313 K. Two-dimensional heteronuclear NOE and ROE difference experiments were employed to determine the spatial proximity and the residence times of water molecules at...
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[NMR paper] Mapping hydration water molecules in the HIV-1 protease/DMP323 complex in solution by
Mapping hydration water molecules in the HIV-1 protease/DMP323 complex in solution by NMR spectroscopy.
http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--pubs.acs.org-images-acspubs.jpg Related Articles Mapping hydration water molecules in the HIV-1 protease/DMP323 complex in solution by NMR spectroscopy.
Biochemistry. 1996 Oct 1;35(39):12694-704
Authors: Wang YX, Freedberg DI, Grzesiek S, Torchia DA, Wingfield PT, Kaufman JD, Stahl SJ, Chang CH, Hodge CN
A tetrahedrally hydrogen-bonded structural water molecule, water 301, is seen in...
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[NMR paper] Probing internal water molecules in proteins using two-dimensional 19F-1H NMR.
Probing internal water molecules in proteins using two-dimensional 19F-1H NMR.
Related Articles Probing internal water molecules in proteins using two-dimensional 19F-1H NMR.
J Biomol NMR. 1995 Jun;5(4):415-9
Authors: Cistola DP, Hall KB
A simple approach for detecting internal water molecules in proteins in solution is described. This approach combines 19F-detected heteronuclear Overhauser and exchange spectroscopy (HOESY) with site-specific 19F substitution. The model system employed was intestinal fatty acid-binding protein complexed with...
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[NMR paper] Characterisation by triple-quantum filtered 17O-NMR of water molecules buried in lyso
Characterisation by triple-quantum filtered 17O-NMR of water molecules buried in lysozyme and trapped in a lysozyme-inhibitor complex.
Related Articles Characterisation by triple-quantum filtered 17O-NMR of water molecules buried in lysozyme and trapped in a lysozyme-inhibitor complex.
Biophys Chem. 1999 Mar 29;77(2-3):111-21
Authors: Baguet E, Hennebert N
Triple-quantum filtering NMR sequences were used to study the multiexponential relaxation behaviour of H2 17O in the presence of hen egg white lysozyme. By this means, the fraction and the...