Detection of Scalar Couplings Involving 2‘-Hydroxyl Protons Across Hydrogen Bonds in a Frameshifting mRNA Pseudoknot

2003 ◽  
Vol 125 (16) ◽  
pp. 4676-4677 ◽  
Author(s):  
David P. Giedroc ◽  
Peter V. Cornish ◽  
Mirko Hennig
Keyword(s):  
Hydrogen Bonds ◽  
Scalar Couplings ◽  
Hydroxyl Protons

Detection of Scalar Couplings Across NH···OP and OH···OP Hydrogen Bonds in a Flavoprotein

2000 ◽  
Vol 122 (38) ◽  
pp. 9289-9295 ◽  
Author(s):  
Frank Löhr ◽  
Stephen G. Mayhew ◽  
Heinz Rüterjans
Keyword(s):  
Hydrogen Bonds ◽  
Scalar Couplings

Direct Observation of Carbohydrate Hydroxyl Protons in Hydrogen Bonds with a Protein

2017 ◽  
Vol 140 (1) ◽  
pp. 339-345 ◽  
Author(s):  
Gustav Nestor ◽  
Taigh Anderson ◽  
Stefan Oscarson ◽  
Angela M. Gronenborn
Keyword(s):  
Hydrogen Bonds ◽  
Direct Observation ◽  
Hydroxyl Protons

Direct Observation of Intramolecular Hydrogen Bonds in Peptide 310 Helices by3hJN,C′ Scalar Couplings

2004 ◽  
Vol 43 (24) ◽  
pp. 3152-3155 ◽  
Author(s):  
Massimo Bellanda ◽  
Mario Rainaldi ◽  
Quirinus B. Broxterman ◽  
Bernard Kaptein ◽  
Fernando Formaggio ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Direct Observation ◽  
Scalar Couplings ◽  
Intramolecular Hydrogen Bonds ◽  
Intramolecular Hydrogen

Geometry, Energetics, and Dynamics of Hydrogen Bonds in Proteins:  Structural Information Derived from NMR Scalar Couplings

2006 ◽  
Vol 128 (47) ◽  
pp. 15127-15135 ◽  
Author(s):  
Joerg Gsponer ◽  
Harri Hopearuoho ◽  
Andrea Cavalli ◽  
Christopher M. Dobson ◽  
Michele Vendruscolo
Keyword(s):  
Hydrogen Bonds ◽  
Structural Information ◽  
Scalar Couplings

Intermolecular31P−15N and31P−1H Scalar Couplings Across Hydrogen Bonds Formed between a Protein and a Nucleotide

2000 ◽  
Vol 122 (24) ◽  
pp. 5883-5884 ◽  
Author(s):  
Masaki Mishima ◽  
Minoru Hatanaka ◽  
Shigeyuki Yokoyama ◽  
Takahisa Ikegami ◽  
Markus Wälchli ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Scalar Couplings

Insights into biomolecular hydrogen bonds from hydrogen bond scalar couplings

2004 ◽  
Vol 45 (3-4) ◽  
pp. 275-300 ◽  
Author(s):  
Stephan Grzesiek ◽  
Florence Cordier ◽  
Victor Jaravine ◽  
Michael Barfield
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Scalar Couplings

scholarly journals A detailed picture of a protein–carbohydrate hydrogen-bonding network revealed by NMR and MD simulations

Glycobiology ◽  
2020 ◽  
Author(s):  
Gustav Nestor ◽  
Alessandro Ruda ◽  
Taigh Anderson ◽  
Stefan Oscarson ◽  
Göran Widmalm ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Hydrogen Bonds ◽  
Antiviral Agents ◽  
Md Simulations ◽  
Protein Backbone ◽  
Carbohydrate Ligands ◽  
Hydrogen Bonding Network ◽  
Dynamics Simulations ◽  
Hydroxyl Protons

Abstract Cyanovirin-N (CV-N) is a cyanobacterial lectin with antiviral activity towards HIV and several other viruses. Here, we identify mannoside hydroxyl protons that are hydrogen bonded to the protein backbone of the CV-N domain B binding site, using NMR spectroscopy. For the two carbohydrate ligands Manα(1→2)ManαOMe and Manα(1→2) Manα(1→6)ManαOMe five hydroxyl protons are involved in hydrogen-bonding networks. Comparison with previous crystallographic results revealed that four of these hydroxyl protons donate hydrogen bonds to protein backbone carbonyl oxygens in solution and in the crystal. Hydrogen bonds were not detected between the side chains of Glu41 and Arg76 with sugar hydroxyls, as previously proposed for CV-N binding of mannosides. Molecular dynamics simulations of the CV-N/Manα(1→2)Manα(1→6)ManαOMe complex confirmed the NMR-determined hydrogen-bonding network. Detailed characterization of CV-N/mannoside complexes provides a better understanding of lectin-carbohydrate interactions and opens up to the use of CV-N and similar lectins as antiviral agents.

Sign in / Sign up

Export Citation Format

Share Document