Flaviviruses such as Dengue, Zika and West-Nile viruses have a positive strand RNA genome which is translated to a polyprotein inside the host cell. The viral polypeptide is matured to its constituents by the enzymatic action of NS2B-NS3 protease-cofactor complex. The flaviviral protease-cofactor complex attracted a lot of interest recently because of its potential for therapeutic intervention and the unique nature of catalysis where the peptide cofactor regulates the enzymatic activity....
[NMR paper] Serine protease dynamics revealed by NMR analysis of the thrombin-thrombomodulin complex
Serine protease dynamics revealed by NMR analysis of the thrombin-thrombomodulin complex
Serine proteases catalyze a multi-step covalent catalytic mechanism of peptide bond cleavage. It has long been assumed that serine proteases including thrombin carry-out catalysis without significant conformational rearrangement of their stable two-?-barrel structure. We present nuclear magnetic resonance (NMR) and hydrogen deuterium exchange mass spectrometry (HDX-MS) experiments on the thrombin-thrombomodulin (TM) complex. Thrombin promotes procoagulative fibrinogen cleavage when fibrinogen...
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Ultrafast Single-Scan 2D NMR Spectroscopic Detection of a PHIP-Hyperpolarized Protease Inhibitor #PHIP
From The DNP-NMR Blog:
Ultrafast Single-Scan 2D NMR Spectroscopic Detection of a PHIP-Hyperpolarized Protease Inhibitor #PHIP
Kiryutin, Alexey S., Grit Sauer, Daniel Tietze, Martin Brodrecht, Stephan Knecht, Alexandra V. Yurkovskaya, Konstantin L. Ivanov, Olga Avrutina, Harald Kolmar, and Gerd Buntkowsky. “Ultrafast Single-Scan 2D NMR Spectroscopic Detection of a PHIP-Hyperpolarized Protease Inhibitor.” Chemistry – A European Journal 25, no. 16 (March 15, 2019): 4025–30.
https://doi.org/10.1002/chem.201900079.
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05-06-2019 04:47 PM
[NMR paper] Differentially Isotope-Labeled Nucleosomes to Study Asymmetric Histone Modification Crosstalk by Time-Resolved NMR Spectroscopy.
Differentially Isotope-Labeled Nucleosomes to Study Asymmetric Histone Modification Crosstalk by Time-Resolved NMR Spectroscopy.
Related Articles Differentially Isotope-Labeled Nucleosomes to Study Asymmetric Histone Modification Crosstalk by Time-Resolved NMR Spectroscopy.
Angew Chem Int Ed Engl. 2016 May 24;
Authors: Liokatis S, Klingberg R, Tan S, Schwarzer D
Abstract
Post-translational modifications (PTMs) of histones regulate chromatin structure and function. Because nucleosomes contain two copies each of the four core...
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05-25-2016 02:33 PM
Experimental tests of a 263 GHz gyrotron for spectroscopic applications and diagnostics of various media
From The DNP-NMR Blog:
Experimental tests of a 263 GHz gyrotron for spectroscopic applications and diagnostics of various media
Glyavin, M.Y., et al., Experimental tests of a 263 GHz gyrotron for spectroscopic applications and diagnostics of various media. Review of Scientific Instruments, 2015. 86(5): p. 054705.
doi:http://dx.doi.org/10.1063/1.4921322
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01-26-2016 03:33 AM
[NMR paper] NMR analysis of a novel enzymatically-active unlinked Dengue NS2B-NS3 protease complex.
NMR analysis of a novel enzymatically-active unlinked Dengue NS2B-NS3 protease complex.
Related Articles NMR analysis of a novel enzymatically-active unlinked Dengue NS2B-NS3 protease complex.
J Biol Chem. 2013 Mar 19;
Authors: Kim YM, Gayen S, Kang C, Joy J, Huang Q, Chen AS, Wee JL, Ang MJ, Lim HA, Hung AW, Li R, Noble CG, Lee LT, Yip A, Wang QY, Chia CS, Hill J, Shi PY, Keller TH
Abstract
The dengue virus (DENV) is a mosquito-borne pathogen responsible for an estimated 100 million human infections annually. The viral genome encodes a...
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[NMR paper] Hepatitis C virus NS3 protease requires its NS4A cofactor peptide for optimal binding
Hepatitis C virus NS3 protease requires its NS4A cofactor peptide for optimal binding of a boronic acid inhibitor as shown by NMR.
Related Articles Hepatitis C virus NS3 protease requires its NS4A cofactor peptide for optimal binding of a boronic acid inhibitor as shown by NMR.
Chem Biol. 2002 Jan;9(1):79-92
Authors: Archer SJ, Camac DM, Wu ZJ, Farrow NA, Domaille PJ, Wasserman ZR, Bukhtiyarova M, Rizzo C, Jagannathan S, Mersinger LJ, Kettner CA
NMR spectroscopy was used to characterize the hepatitis C virus (HCV) NS3 protease in a complex...
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11-24-2010 08:49 PM
[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...