2013
Control of the G- protein cascade dynamics by GDP dissociation inhibitors
Nikonova E, Tsyganov MA, Kolch W, Fey D, Kholodenko BN. Control of the G- protein cascade dynamics by GDP dissociation inhibitors. Molecular Omics 2013, 9: 2454-2462. PMID: 23872884, DOI: 10.1039/c3mb70152b.Peer-Reviewed Original ResearchConceptsGDP dissociation inhibitorGuanine nucleotide exchange factorsRho family GTPasesDissociation inhibitorNucleotide exchange factorsKey cellular processesProtrusion-retraction cyclesSignal-induced changesCell migration behaviorActive GTPExchange factorInactive GDPCellular processesGTPase activityRac1 activityGTPasesBistable switchRhoADistinct modesRhoGDI1GTPaseInhibitorsRac1GTPCytoplasm
2000
Diffusion control of protein phosphorylation in signal transduction pathways
KHOLODENKO B, BROWN G, HOEK J. Diffusion control of protein phosphorylation in signal transduction pathways. Biochemical Journal 2000, 350: 901-907. PMID: 10970807, PMCID: PMC1221325, DOI: 10.1042/bj3500901.Peer-Reviewed Original ResearchConceptsProtein phosphorylationProtein kinasePhosphorylation fluxProtein diffusionSignal transduction pathwaysProtein phosphataseSpherical cellsTransduction pathwaysDifferent cellular geometriesCellular locationPlasma membranePlanar membranesKinaseCell membraneCellular geometryProtein diffusion coefficientsPhosphatasePhosphorylationCell centerProteinMembraneCellsSpatial gradientsCytoplasmPathwayNegative feedback and ultrasensitivity can bring about oscillations in the mitogen‐activated protein kinase cascades
Kholodenko B. Negative feedback and ultrasensitivity can bring about oscillations in the mitogen‐activated protein kinase cascades. The FEBS Journal 2000, 267: 1583-1588. PMID: 10712587, DOI: 10.1046/j.1432-1327.2000.01197.x.Peer-Reviewed Original ResearchConceptsMitogen-activated protein kinaseMAPK cascadeProtein kinaseProtein phosphorylation cascadeSlow protein diffusionNegative feedback loopPhosphorylation cascadeSignal transductionFeedback loopCellular targetsProtein diffusionMAPK phosphorylationPhosphorylation levelsCell typesIntracellular wavesKinasePhosphorylationCascadeFunctional organizationUltrasensitivityRecent kinetic dataExternal stimuliTransductionTotal proteinCytoplasm
1999
Spatial gradients of cellular phospho‐proteins
Brown G, Kholodenko B. Spatial gradients of cellular phospho‐proteins. FEBS Letters 1999, 457: 452-454. PMID: 10471827, DOI: 10.1016/s0014-5793(99)01058-3.Peer-Reviewed Original ResearchConceptsCellular signalingProtein kinaseDifferent cellular geometriesCellular locationPlasma membranePhosphorylated formPlanar membranesProtein diffusionPhosphatase activityKinaseCellular geometryProtein diffusion coefficientsSpatial gradientsSpherical cellsProteinMembraneSuch gradientsCellsSignalingCytoplasmPhosphataseImportant implicationsGradientPotential size