Snorri Th Sigurdsson

Author PubWeight™ 45.87‹?›

Top papers

Rank Title Journal Year PubWeight™‹?›
1 Transition state stabilization by a catalytic RNA. Science 2002 2.73
2 Isolation and characterization of a thermostable RNA ligase 1 from a Thermus scotoductus bacteriophage TS2126 with good single-stranded DNA ligation properties. Nucleic Acids Res 2005 1.32
3 Relative orientation of rigid nitroxides by PELDOR: beyond distance measurements in nucleic acids. Angew Chem Int Ed Engl 2009 1.15
4 A nucleoside that contains a rigid nitroxide spin label: a fluorophore in disguise. Angew Chem Int Ed Engl 2007 1.08
5 Studying RNA using site-directed spin-labeling and continuous-wave electron paramagnetic resonance spectroscopy. Methods Enzymol 2009 1.03
6 Folding of the cocaine aptamer studied by EPR and fluorescence spectroscopies using the bifunctional spectroscopic probe Ç. Nucleic Acids Res 2009 1.01
7 Trityl radicals: spin labels for nanometer-distance measurements. Chemistry 2012 0.98
8 Rigid spin-labeled nucleoside C: a nonperturbing EPR probe of nucleic acid conformation. Nucleic Acids Res 2008 0.97
9 Structural investigation of a high-affinity MnII binding site in the hammerhead ribozyme by EPR spectroscopy and DFT calculations. Effects of neomycin B on metal-ion binding. Chembiochem 2003 0.97
10 Electron paramagnetic resonance dynamic signatures of TAR RNA-small molecule complexes provide insight into RNA structure and recognition. Biochemistry 2002 0.96
11 Investigation of RNA-protein and RNA-metal ion interactions by electron paramagnetic resonance spectroscopy. The HIV TAR-Tat motif. Chem Biol 2002 0.94
12 Monitoring tat peptide binding to TAR RNA by solid-state 31P-19F REDOR NMR. Nucleic Acids Res 2005 0.94
13 Site-specific incorporation of nitroxide spin-labels into 2'-positions of nucleic acids. Nat Protoc 2007 0.94
14 Determination of DNA minor groove width in distamycin-DNA complexes by solid-state NMR. Nucleic Acids Res 2003 0.93
15 EPR spectroscopic analysis of U7 hammerhead ribozyme dynamics during metal ion induced folding. Biochemistry 2005 0.92
16 Orientation selection in distance measurements between nitroxide spin labels at 94 GHz EPR with variable dual frequency irradiation. Phys Chem Chem Phys 2013 0.90
17 Conformational flexibility of DNA. J Am Chem Soc 2011 0.89
18 Single base interrogation by a fluorescent nucleotide: each of the four DNA bases identified by fluorescence spectroscopy. Chem Commun (Camb) 2008 0.89
19 Zinc-dependent cleavage in the catalytic core of the hammerhead ribozyme: evidence for a pH-dependent conformational change. Nucleic Acids Res 2003 0.89
20 Noncovalent and site-directed spin labeling of nucleic acids. Angew Chem Int Ed Engl 2010 0.89
21 Solution structure of a nitrous acid induced DNA interstrand cross-link. Nucleic Acids Res 2004 0.88
22 W-band PELDOR with 1 kW microwave power: molecular geometry, flexibility and exchange coupling. J Magn Reson 2012 0.88
23 Site-directed spin-labeling of nucleic acids by click chemistry: detection of abasic sites in duplex DNA by EPR spectroscopy. J Am Chem Soc 2010 0.85
24 A nonafluoro nucleoside as a sensitive 19f NMR probe of nucleic acid conformation. Org Lett 2008 0.85
25 Identification of amino acids that promote specific and rigid TAR RNA-tat protein complex formation. Chem Biol 2005 0.84
26 EPR spectroscopic analysis of TAR RNA-metal ion interactions. Biochem Biophys Res Commun 2003 0.84
27 Conformational equilibria of bulged sites in duplex DNA studied by EPR spectroscopy. J Phys Chem B 2009 0.83
28 Measurements of short distances between trityl spin labels with CW EPR, DQC and PELDOR. Phys Chem Chem Phys 2013 0.83
29 Using solid-state 31P{19F} REDOR NMR to measure distances between a trifluoromethyl group and a phosphodiester in nucleic acids. J Magn Reson 2005 0.81
30 Theory for spin-lattice relaxation of spin probes on weakly deformable DNA. J Phys Chem B 2008 0.81
31 Identification of single-base mismatches in duplex DNA by EPR spectroscopy. J Am Chem Soc 2009 0.81
32 Investigation of Mg2+- and temperature-dependent folding of the hairpin ribozyme by photo-crosslinking: effects of photo-crosslinker tether length and chemistry. Nucleic Acids Res 2005 0.81
33 Analytical method to determine the orientation of rigid spin labels in DNA. Phys Rev E Stat Nonlin Soft Matter Phys 2010 0.81
34 A single-stranded junction modulates nanosecond motional ordering of the substrate recognition duplex of a group I ribozyme. Chembiochem 2013 0.80
35 Distance measurements between manganese(II) and nitroxide spin-labels by DEER determine a binding site of Mn(2+) in the HP92 loop of ribosomal RNA. Phys Chem Chem Phys 2015 0.80
36 Synthesis and characterization of RNA containing a rigid and nonperturbing cytidine-derived spin label. J Org Chem 2012 0.80
37 Sequence context effect on the structure of nitrous acid induced DNA interstrand cross-links. Nucleic Acids Res 2004 0.80
38 Interactions of the antibiotics neomycin B and chlortetracycline with the hammerhead ribozyme as studied by Zn2+-dependent RNA cleavage. Bioorg Med Chem 2004 0.78
39 Simulating electron spin resonance spectra of macromolecules labeled with two dipolar-coupled nitroxide spin labels from trajectories. Phys Chem Chem Phys 2011 0.78
40 Conformationally restricted isoindoline-derived spin labels in duplex DNA: distances and rotational flexibility by pulsed electron-electron double resonance spectroscopy. Chemistry 2014 0.78
41 Structural changes of an abasic site in duplex DNA affect noncovalent binding of the spin label ç. Nucleic Acids Res 2011 0.78
42 Large flanking sequence effects in single nucleotide mismatch detection using fluorescent nucleoside C(f). Bioorg Med Chem 2010 0.77
43 Protein-induced changes in DNA structure and dynamics observed with noncovalent site-directed spin labeling and PELDOR. Nucleic Acids Res 2012 0.77
44 Structure-function relationships of phenoxazine nucleosides for identification of mismatches in duplex DNA by fluorescence spectroscopy. Chembiochem 2011 0.77
45 tert-Butyldimethylsilyl O-protected chitosan and chitooligosaccharides: useful precursors for N-modifications in common organic solvents. Carbohydr Res 2008 0.77
46 Experimental and theoretical study of the metastable decay of negatively charged nucleosides in the gas phase. Phys Chem Chem Phys 2011 0.77
47 Hydrogen-bonding controlled rigidity of an isoindoline-derived nitroxide spin label for nucleic acids. Chem Commun (Camb) 2012 0.76
48 Stereospecific syntheses of 3'-deuterated pyrimidine nucleosides and their site-specific incorporation into DNA. Org Lett 2003 0.76
49 Syntheses and photophysical properties of 5'-6-locked fluorescent nucleosides. Org Biomol Chem 2013 0.76
50 Nitroxide-labeled pyrimidines for non-covalent spin-labeling of abasic sites in DNA and RNA duplexes. Org Biomol Chem 2014 0.76
51 Site-directed spin labeling of 2'-amino groups in RNA with isoindoline nitroxides that are resistant to reduction. Chem Commun (Camb) 2015 0.76
52 TMIO-PyrImid hybrids are profluorescent, site-directed spin labels for nucleic acids. Org Lett 2014 0.75
53 Chemical syntheses of inhibitory substrates of the RNA-RNA ligation reaction catalyzed by the hairpin ribozyme. Nucleic Acids Res 2004 0.75
54 Crystal structure of a DNA containing the planar, phenoxazine-derived bi-functional spectroscopic probe C. Nucleic Acids Res 2011 0.75
55 Conformation and dynamics of nucleotides in bulges and symmetric internal loops in duplex DNA studied by EPR and fluorescence spectroscopies. Biochem Biophys Res Commun 2012 0.75
56 Spin the light off: rapid internal conversion into a dark doublet state quenches the fluorescence of an RNA spin label. Phys Chem Chem Phys 2017 0.75
57 Correction: Distance measurements between manganese(ii) and nitroxide spin-labels by DEER determine a binding site of Mn(2+) in the HP92 loop of ribosomal RNA. Phys Chem Chem Phys 2015 0.75
58 Rigid 5'-6-locked phenanthroline-derived nucleosides chelated to ruthenium and europium ions. Bioorg Med Chem Lett 2012 0.75
59 Effect of N3 modifications on the affinity of spin label ç for abasic sites in duplex DNA. Chembiochem 2012 0.75
60 Structural features and dynamics of a cold-adapted alkaline phosphatase studied by EPR spectroscopy. FEBS J 2009 0.75