Research Topics
Species | Peter RuoffSummaryAffiliation: University of Stavanger Country: Norway Publications
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Detail Information
Publications
Circadian period lengths of lipid synthesis mutants (cel, chol-1) of Neurospora show defective temperature, but intact pH-compensationPeter Ruoff
School of Science and Technology, Stavanger University College, Norway
Chronobiol Int 19:517-29. 2002..At present, the products of the frq-locus are the only components of the clock that affect the sporulation rhythm of Neurospora both through pH- and temperature-compensation...- Temperature compensation through systems biologyPeter Ruoff
Department of Mathematics and Natural Science, University of Stavanger, Norway
FEBS J 274:940-50. 2007..A calorimetric experiment with yeast provides evidence that such a dynamic temperature adaptation can actually occur... - PER/TIM-mediated amplification, gene dosage effects and temperature compensation in an interlocking-feedback loop model of the Drosophila circadian clockPeter Ruoff
Faculty of Science and Technology, University of Stavanger, N 4036 Stavanger, Norway
J Theor Biol 237:41-57. 2005..The model shows (somewhat surprisingly) poor entrainment properties, especially under extended light/dark (L/D) cycles, which suggests that parts of the L/D tracking or sensing system are not well represented... - The relationship between FRQ-protein stability and temperature compensation in the Neurospora circadian clockPeter Ruoff
Department of Mathematics and Natural Science, University of Stavanger, N 4036 Stavanger, Norway
Proc Natl Acad Sci U S A 102:17681-6. 2005.... - Semi-algebraic optimization of temperature compensation in a general switch-type negative feedback model of circadian clocksSven Ole Aase
Department of Electrical and Computer Engineering, University of Stavanger, 4036 Stavanger, Norway
J Math Biol 56:279-92. 2008..In biological terms this could be interpreted to relate to a circadian clock mechanism which during evolution is being optimized for a certain but relative narrow (habitat) temperature range... - Simulating dark expressions and interactions of frq and wc-1 in the Neurospora circadian clockChristian I Hong
Department of Mathematics and Natural Science, University of Stavanger, N 4036 Stavanger, Norway
Biophys J 94:1221-32. 2008..The model shows good agreement with experimental levels in nuclear and cytosolic FRQ and WC-1, their phase relationships, and several clock mutant phenotypes... - Lithium leads to an increased FRQ protein stability and to a partial loss of temperature compensation in the Neurospora circadian clockIngunn W Jolma
Department of Mathematics and Natural Science, University of Stavanger, Stavanger, Norway
J Biol Rhythms 21:327-34. 2006..Using a modified Goodwin oscillator as a semiquantitative model for the Neurospora clock, the effects of lithium can be described by adding lithium inhibitory terms of FRQ degradation to the model... - Circadian oscillators in eukaryotesIngunn W Jolma
Centre of Organelle Research, Faculty of Science and Technology, University of Stavanger, Stavanger, Norway
Wiley Interdiscip Rev Syst Biol Med 2:533-49. 2010.... - Harmonic oscillations in homeostatic controllers: Dynamics of the p53 regulatory systemIngunn W Jolma
Centre for Organelle Research, University of Stavanger, Norway
Biophys J 98:743-52. 2010..In conclusion, the oscillatory response of homeostatic controllers may provide new insights into the origin and role of oscillations observed in homeostatically controlled molecular networks... - Studying adaptation and homeostatic behaviors of kinetic networks by using MATLABTormod Drengstig
Faculty of Science and Technology, Centre for Organelle Research, University of Stavanger, Stavanger, Norway
Methods Mol Biol 734:153-72. 2011..We also show how the homeostatic set point in perfect adaptation is related to the presence of zero-order fluxes... - On the relationship between sensitivity coefficients and transfer functions of reaction kinetic networksTormod Drengstig
Department of Electrical Engineering and Computer Science, Faculty of Science and Technology, University of Stavanger, Stavanger, Norway
J Phys Chem B 115:6272-8. 2011..Compared to the stoichiometric network approach, the here described method allows for dealing with arbitrary (including empirically identified) kinetic expressions... - Nutrient depletion as a key factor for manipulating gene expression and product formation in different branches of the flavonoid pathwayCathrine Lillo
Department of Mathematics and Natural Science, University of Stavanger, 4036 Stavanger, Norway
Plant Cell Environ 31:587-601. 2008..Kaempferols are the dominating flavonols in Arabidopsis leaves under normal cultivation conditions, but quercetin accumulation can be triggered by nitrogen depletion in combination with other abiotic factors... - The control of the controller: molecular mechanisms for robust perfect adaptation and temperature compensationXiao Yu Ni
Centre for Organelle Research, University of Stavanger, Stavanger, Norway
Biophys J 97:1244-53. 2009.... - Temperature and nitrogen effects on regulators and products of the flavonoid pathway: experimental and kinetic model studiesKristine M Olsen
University of Stavanger, Centre for Organelle Research, Faculty of Science and Technology, Stavanger, Norway
Plant Cell Environ 32:286-99. 2009.... - Predicting perfect adaptation motifs in reaction kinetic networksTormod Drengstig
Department of Electrical Engineering and Computer Science, University of Stavanger, Stavanger, Norway
J Phys Chem B 112:16752-8. 2008..We applied the method on various reaction schemes and found that new (robust) perfect adaptation motifs emerge when considering suggested models of bacterial and eukaryotic chemotaxis... - Integrating fluctuating nitrate uptake and assimilation to robust homeostasisYongshun Huang
Centre for Organelle Research Department of Electrical Engineering and Computer Science, University of Stavanger, N 4036 Stavanger, Norway
Plant Cell Environ 35:917-28. 2012..By combining inflow and outflow controllers we demonstrate how nitrate uptake, assimilation, storage and efflux are integrated to a regulatory network that maintains cytosolic nitrate homeostasis at changing environmental conditions... - Opposite-base dependent excision of 5-formyluracil from DNA by hSMUG1Ingeborg Knaevelsrud
Faculty of Science and Technology, Department of Mathematics and Natural Sciences, University of Stavanger, Stavanger, Norway
Int J Radiat Biol 85:413-20. 2009.... - Circadian rhythmicity by autocatalysisArun Mehra
Department of Genetics, Dartmouth Medical School, Hanover, New Hampshire, USA
PLoS Comput Biol 2:e96. 2006.... - Temperature dependency and temperature compensation in a model of yeast glycolytic oscillationsPeter Ruoff
School of Science and Technology, Stavanger University College, PO Box 8002, Ullandhaug, N 4068 Stavanger, Norway
Biophys Chem 106:179-92. 2003..The calculations suggest that by changing the activation energies for one or several of the processes, i.e. by mutations, it could be possible to obtain temperature compensation in the yeast glycolytic oscillator... - A nitrate-induced frq-less oscillator in Neurospora crassaMelinda K Christensen
Stavanger University College, School of Science and Technology, Stavanger, Norway
J Biol Rhythms 19:280-6. 2004..This is the first example of an endogenous, nutritionally induced daily rhythm with known molecular components that is observed in the absence of an intact FRQ protein... - Temperature effect on entrainment, phase shifting, and amplitude of circadian clocks and its molecular basesLudger Rensing
Institute of Cell Biology, Biochemistry and Biotechnology, University of Bremen, Germany
Chronobiol Int 19:807-64. 2002..In ectothermic vertebrates temperature changes significantly affect the melatonin rhythm, which in turn exerts entraining (phase shifting) functions...