Paul M Champion
Overview
Explore the profile of Paul M Champion including associated specialties, affiliations and a list of published articles.
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39
Citations
445
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Recent Articles
1.
van Thor J, Champion P
Annu Rev Phys Chem
. 2023 Jan;
74:123-144.
PMID: 36696586
The photoacid dynamics of fluorescent proteins include both electronic excited- and ground-state mechanisms of proton transfer. The associated characteristic timescales of these reactions range over many orders of magnitude, and...
2.
Tripathi P, Benabbas A, Mehrafrooz B, Yamazaki H, Aksimentiev A, Champion P, et al.
Proc Natl Acad Sci U S A
. 2021 Apr;
118(17).
PMID: 33883276
Many small proteins move across cellular compartments through narrow pores. In order to thread a protein through a constriction, free energy must be overcome to either deform or completely unfold...
3.
Hennighausen Z, Lane C, Benabbas A, Mendez K, Eggenberger M, Champion P, et al.
ACS Appl Mater Interfaces
. 2019 Apr;
11(17):15913-15921.
PMID: 30964277
Two-dimensional (2D) heterostructures are more than a sum of the parent 2D materials, but are also a product of the interlayer coupling, which can induce new properties. In this paper,...
4.
Benabbas A, Champion P
J Phys Chem B
. 2018 Sep;
122(49):11431-11439.
PMID: 30230843
The dynamics of methionine geminate recombination following photodissociation in ferrous cytochrome c is investigated over a broad temperature range. The kinetic response, above the solvent glass transition ( T), is...
5.
Benabbas A, Sun Y, Poulos T, Champion P
J Am Chem Soc
. 2017 Oct;
139(44):15738-15747.
PMID: 28984134
The ultrafast kinetics of CO rebinding to carbon monoxide oxidation activator protein (ChCooA) are measured over a wide temperature range and compared with the kinetics of CO binding in other...
6.
Salna B, Benabbas A, Russo D, Champion P
J Phys Chem B
. 2017 Jun;
121(28):6869-6881.
PMID: 28628313
A proper description of proton donor-acceptor (D-A) distance fluctuations is crucial for understanding tunneling in proton-coupled electron transport (PCET). The typical harmonic approximation for the D-A potential results in a...
7.
Salna B, Benabbas A, Champion P
J Phys Chem A
. 2017 Feb;
121(10):2199-2207.
PMID: 28211681
The often-used "linear approximation" for treating the coupling of proton donor-acceptor (D-A) distance fluctuations to proton-coupled electron transfer tunneling reactions is systematically examined. The accuracy of this approximation is found...
8.
Salna B, Benabbas A, Sage J, van Thor J, Champion P
Nat Chem
. 2016 Aug;
8(9):874-80.
PMID: 27554414
Directional proton transport along 'wires' that feed biochemical reactions in proteins is poorly understood. Amino-acid residues with high pKa are seldom considered as active transport elements in such wires because...
9.
Sun Y, Benabbas A, Zeng W, Muralidharan S, Boon E, Champion P
J Phys Chem B
. 2016 May;
120(24):5351-8.
PMID: 27229134
Transient absorption, resonance Raman, and vibrational coherence spectroscopies are used to investigate the mechanisms of NO and O2 binding to WT Tt H-NOX and its P115A mutant. Vibrational coherence spectra...
10.
Thompson L, Lasoroski A, Champion P, Sage J, Frisch M, van Thor J, et al.
J Chem Theory Comput
. 2015 Nov;
10(2):751-66.
PMID: 26580050
A systematic comparison of different environmental effects on the vibrational modes of the 4-hydroxybenzylidene-2,3-dimethylimidazolinone (HBDI) chromophore using the ONIOM method allows us to model how the molecule's spectroscopic transitions are...