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RESEARCH PRODUCT
Rapid odorant release in mammalian odour binding proteins facilitates their temporal coupling to odorant signals.
David J. ScottAndrew J. TaylorAntoni J. BorysikLoїc BriandLoїc Briandsubject
[SDV.BIO]Life Sciences [q-bio]/BiotechnologyKineticsAnalytical chemistryOlfactionAcetatesCalorimetryIn Vitro Techniques[ SDV.BA ] Life Sciences [q-bio]/Animal biologyLigandsReceptors OdorantDNA-binding proteinMass Spectrometry03 medical and health sciences0302 clinical medicineReaction rate constantStructural BiologyODORANT-BINDING PROTEINSAnimals[INFO.INFO-BT]Computer Science [cs]/BiotechnologyMolecular Biology030304 developmental biology0303 health sciencesChemistryTemporal couplingLigand[SDV.BA]Life Sciences [q-bio]/Animal biology[ SDV.BIO ] Life Sciences [q-bio]/BiotechnologyRecombinant ProteinsRatsSmellKineticsOdorantsBiophysicsOLFACTIONThermodynamics[ INFO.INFO-BT ] Computer Science [cs]/Biotechnology030217 neurology & neurosurgerypsychological phenomena and processesSignal Transductiondescription
; We have measured the effect of rat odorant-binding protein 1 on the rates of ligand uptake and liquid-to-air transfer rates with a set of defined odorous compounds. Comparison of observed rate constants (k(obs)) with data simulated over a wide range of different kinetic and thermodynamic regimes shows that the data do not agree with the previously held view of a slow off-rate regime (k(off) <0.0004 s(-1)). We propose that a rapid koff would be a necessary requirement for such a system, since slow odorant-release rates would result in significant decorrelation between the olfactory world and odour perception. (c) 2010 Elsevier Ltd. All rights reserved.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2010-01-01 | Journal of molecular biology |