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Showing 1 to 12 of 79 entries
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Swain-Scott Relationships for Nucleophile Addition to Ring-Substituted Phenonium Ions.

Canadian journal of chemistry

Tsuji Y, Richard JP.
PMID: 26843657
Can J Chem. 2015;93(4):428-434. doi: 10.1139/cjc-2014-0337. Epub 2014 Sep 08.

The products of the reactions of 2-(4-methoxyphenyl)ethyl tosylate (

Natural reservoirs for homologs of hepatitis C virus.

Emerging microbes & infections

Pfaender S, Brown RJ, Pietschmann T, Steinmann E.
PMID: 26038514
Emerg Microbes Infect. 2014 Mar;3(3):e21. doi: 10.1038/emi.2014.19. Epub 2014 Mar 26.

Hepatitis C virus is considered a major public health problem, infecting 2%-3% of the human population. Hepatitis C virus infection causes acute and chronic liver disease, including chronic hepatitis, cirrhosis and hepatocellular carcinoma. In fact, hepatitis C virus infection...

Cardiac adaptation to high altitude in the plateau pika (Ochotona curzoniae).

Physiological reports

Pichon A, Zhenzhong B, Marchant D, Jin G, Voituron N, Haixia Y, Favret F, Richalet JP, Ge RL.
PMID: 24303117
Physiol Rep. 2013 Jul;1(2):e00032. doi: 10.1002/phy2.32. Epub 2013 Jul 18.

The aim of this study was to assess maximal heart rate (HR) and heart morphological changes in high altitude living "plateau pikas" and rats bred at 2260 m. Rats and pikas were catheterized to measure HR (2260 m). After...

Melanoma: oncogenic drivers and the immune system.

Annals of translational medicine

Karachaliou N, Pilotto S, Teixidó C, Viteri S, González-Cao M, Riso A, Morales-Espinosa D, Molina MA, Chaib I, Santarpia M, Richardet E, Bria E, Rosell R.
PMID: 26605311
Ann Transl Med. 2015 Oct;3(18):265. doi: 10.3978/j.issn.2305-5839.2015.08.06.

Advances and in-depth understanding of the biology of melanoma over the past 30 years have contributed to a change in the consideration of melanoma as one of the most therapy-resistant malignancies. The finding that oncogenic BRAF mutations drive tumor...

Substituent Effects on Carbon Acidity in Aqueous Solution and at Enzyme Active Sites.

Synlett : accounts and rapid communications in synthetic organic chemistry

Amyes TL, Richard JP.
PMID: 28993718
Synlett. 2017 Jul;28(12):2407-2421. doi: 10.1055/s-0036-1588778. Epub 2017 Mar 10.

Methods are described for the determination of p

Fluoride-ion acceptor properties of WSF4: synthesis, characterization, and computational study of the WSF5(-) and W2S2F9(-) anions and 19F NMR spectroscopic characterization of the W2OSF9(-) anion.

Inorganic chemistry

Nieboer J, Haiges R, Hillary W, Yu X, Richardet T, Mercier HP, Gerken M.
PMID: 22591272
Inorg Chem. 2012 Jun 04;51(11):6350-9. doi: 10.1021/ic3005882. Epub 2012 May 16.

The new [N(CH(3))(4)][WSF(5)] salt was synthesized by two preparative methods: (a) by reaction of WSF(4) with [N(CH(3))(4)][F] in CH(3)CN and (b) directly from WF(6) using the new sulfide-transfer reagent [N(CH(3))(4)][SSi(CH(3))(3)]. The [N(CH(3))(4)][WSF(5)] salt was characterized by Raman, IR, and...

Substituent Effects on the Formation and Nucleophile Selectivity of Ring-Substituted Phenonium Ions in Aqueous Solution.

Journal of physical organic chemistry

Tsuji Y, Ogawa S, Richard JP.
PMID: 24511183
J Phys Org Chem. 2013 Dec 01;26(12):970-976. doi: 10.1002/poc.3145.

The reaction of 2-(4-methyphenyl)ethyl tosylate (

Enzymatic Catalysis of Proton Transfer and Decarboxylation Reactions.

Pure and applied chemistry. Chimie pure et appliquee

Richard JP.
PMID: 23505326
Pure Appl Chem. 2011 Jul 08;83(8):1555-1565. doi: 10.1351/PAC-CON-11-02-05.

Deprotonation of carbon and decarboxylation at enzyme active sites proceed through the same carbanion intermediates as for the uncatalyzed reactions in water. The mechanism for the enzymatic reactions can be studied at the same level of detail as for...

Optical motion sensor for resonant-bar gravitational wave antennas.

Applied optics

Richard JP, Pang Y, Hamilton JJ.
PMID: 20720800
Appl Opt. 1992 Apr 01;31(10):1641-5. doi: 10.1364/AO.31.001641.

An experiment is described in which an optical method was used to measure fluctuations in the separation between two mirrors of a Fabry-Perot sensor cavity. Noise measurements were made to determine the sensitivity of this device to vibration amplitudes...

Mechanistic Imperatives for Deprotonation of Carbon Catalyzed by Triosephosphate Isomerase: Enzyme-Activation by Phosphite Dianion.

Journal of physical organic chemistry

Zhai X, Malabanan MM, Amyes TL, Richard JP.
PMID: 24729658
J Phys Org Chem. 2014 Apr 01;27(4):269-276. doi: 10.1002/poc.3195.

The mechanistic imperatives for catalysis of deprotonation of α-carbonyl carbon by triosephosphate isomerase (TIM) are discussed. There is a strong imperative to reduce the large thermodynamic barrier for deprotonation of carbon to form an enediolate reaction intermediate; and, a...

Is there a shift of the oxygen-hemoglobin dissociation curve in COVID-19?.

American journal of physiology. Lung cellular and molecular physiology

Gille T, Sesé L, Aubourg E, Bernaudin JF, Richalet JP, Planès C.
PMID: 35015569
Am J Physiol Lung Cell Mol Physiol. 2022 Jan 01;322(1):L174-L175. doi: 10.1152/ajplung.00390.2021.

No abstract available.

The role of remote flavin adenine dinucleotide pieces in the oxidative decarboxylation catalyzed by salicylate hydroxylase.

Bioorganic chemistry

Pereira MS, de Araújo SS, Nagem RAP, Richard JP, Brandão TAS.
PMID: 34965488
Bioorg Chem. 2021 Dec 16;119:105561. doi: 10.1016/j.bioorg.2021.105561. Epub 2021 Dec 16.

Salicylate hydroxylase (NahG) has a single redox site in which FAD is reduced by NADH, the O

Showing 1 to 12 of 79 entries