- Author:
- neilstephen2001 <npar276@aucklanduni.ac.nz>
- Date:
- 2021-01-26 14:35:03+13:00
- Desc:
- modifying rdf files
- Permanent Source URI:
- http://models.cellml.org/workspace/7f1/rawfile/4d6408caaf3e7b1b86d33d53d26105360ef95347/houart_1999/model/houart_1999.rdf
<rdf:RDF
xmlns:dcterms="http://purl.org/dc/terms/"
xmlns:semsim="http://www.bhi.washington.edu/SemSim#"
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:bqmodel="http://biomodels.net/model-qualifiers/"
xmlns:bqbiol="http://biomodels.net/biology-qualifiers/">
<rdf:Description rdf:about="./houart_1999.cellml#InsP3_conc.beta">
<dcterms:description>degree of stimulation of the cell by an agonist</dcterms:description>
</rdf:Description>
<rdf:Description rdf:about="./houart_1999.cellml#V3.V_M3">
<dcterms:description>maximum release rate of cytosolic calcium from intracellular stores into the cytosol</dcterms:description>
</rdf:Description>
<rdf:Description rdf:about="./houart_1999.cellml#V5.V_M5">
<dcterms:description>maximum phosphorylation rate of IP3 by 3-kinase</dcterms:description>
</rdf:Description>
<rdf:Description rdf:about="./houart_1999.cellml#Vin.V_in">
<dcterms:description>total calcium flux into the cell</dcterms:description>
</rdf:Description>
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</rdf:Description>
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<dcterms:description>Hill coefficient of calcium release from intracellular stores</dcterms:description>
</rdf:Description>
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</rdf:Description>
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<bqbiol:is rdf:resource="https://identifiers.org/opb/OPB_01023"/>
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<dcterms:description>IP3 threshold constant for activation of calcium release from intracellular stores</dcterms:description>
</rdf:Description>
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<bqbiol:isVersionOf rdf:resource="https://identifiers.org/opb/OPB_00593"/>
<dcterms:description>calcium flux from the cytosol into intracellular stores</dcterms:description>
</rdf:Description>
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<dcterms:description>maximum rate of stimulus-induced calcium flux into the cell</dcterms:description>
</rdf:Description>
<rdf:Description rdf:about="./houart_1999.cellml#cytosol.Y">
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<bqbiol:is rdf:resource="http://identifiers.org/fma/FMA:63842"/>
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</rdf:Description>
</bqbiol:isPropertyOf>
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<dcterms:description>concentration of calcium in intracellular stores</dcterms:description>
</rdf:Description>
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<bqbiol:is rdf:resource="https://identifiers.org/opb/OPB_01023"/>
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</rdf:Description>
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<bqbiol:is rdf:resource="https://identifiers.org/opb/OPB_01023"/>
</rdf:Description>
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</rdf:Description>
<rdf:Description rdf:about="./houart_1999.cellml#internal_pool.k_f">
<bqbiol:is rdf:resource="https://identifiers.org/opb/OPB_01296"/>
<dcterms:description>passive leak rate constant of calcium from intracellular stores into cytosol</dcterms:description>
</rdf:Description>
<rdf:Description rdf:about="./houart_1999.cellml#internal_pool.V_3">
<bqbiol:isVersionOf rdf:resource="https://identifiers.org/opb/OPB_00593"/>
<dcterms:description>calcium flux from intracellular stores into the cytosol</dcterms:description>
</rdf:Description>
<rdf:Description rdf:about="./houart_1999.cellml#InsP3_conc.A">
<bqbiol:isPropertyOf rdf:resource="./houart_1999.cellml#entity_4"/>
<bqbiol:isVersionOf rdf:resource="https://identifiers.org/opb/OPB_00340"/>
<dcterms:description>concentration of IP3</dcterms:description>
</rdf:Description>
<rdf:Description rdf:about="./houart_1999.cellml#V3.Y">
<bqbiol:isPropertyOf rdf:resource="./houart_1999.cellml#entity_2"/>
<bqbiol:isVersionOf rdf:resource="https://identifiers.org/opb/OPB_00340"/>
<dcterms:description>concentration of calcium in intracellular stores</dcterms:description>
</rdf:Description>
<rdf:Description rdf:about="./houart_1999.cellml#houart_1999"
semsim:unknown="Ca2+"
semsim:modelName="houart_1999"
bqmodel:isDescribedBy="17883229">
<semsim:unknown>Bursting, Chaos and birhythmicity Originating from Self-modulation of the Inositol 1,4,5-triphosphate Signal in a Model for Intracellular Ca2+ Oscillations</semsim:unknown>
<semsim:hasCellMLdocumentation><documentation xmlns="http://cellml.org/tmp-documentation">
<article>
<articleinfo>
<title>Bursting, Chaos and Birhythmicity Originating from Self-modulation of the Inositol 1,4,5-triphosphate Signal in a Model for Intracellular Ca2+ Oscillations</title>
<author>
<firstname>Mona</firstname>
<surname>Zhu</surname>
<affiliation>
<shortaffil>Auckland Bioengineering Institute, University of Auckland</shortaffil>
</affiliation>
</author>
</articleinfo>
<section id="sec_status">
<title>Model Status</title>
<para>This model has been built with the differential expressions of Houart's 1999 paper for various types of intracellular Ca2+ oscillations bassed on self-modulation of the Inositol 1,4,5-triphosphate signal. The parameter values for this model are different for different types of intracellular Ca2+ oscillations. The parameter values used for this particular model were taken from Figure 2 on page 513 and reproduces the corresponding curves. Parameter values from pages 515 and 520 may be changed to reflect curves for Bursting, Chaos, Quasiperiodicity and Birhythmicity. The initial conditions have been set after allowing the model to run for approximately 5 minutes until steady state. This file is known to run in COR and OpenCell.</para>
</section>
<sect1 id="sec_structure">
<title>Model Structure</title>
<para>We investigate the various types of complex Ca2+ oscillations which can arise in a model based on the mechanism of Ca2+-induced Ca2+ release (CICR), that takes into account the Ca2+-stimulated degradation of inositol 1,4,5-trisphosphate (InsP3) by a 3-kinase. This model was previously proposed in the course of an investigation of plausible mechanisms capable of generating complex Ca2+ oscillations. Besides simple periodic behavior, this model for cytosolic Ca2+ oscillations in nonexcitable cells shows complex oscillatory phenomena like bursting or chaos. We show that the model also admits a coexistence between two stable regimes of sustained oscillations (birhythmicity). The occurrence of these various modes of oscillatory behavior is analysed by means of bifurcation diagrams. Complex oscillations are characterized by means of Poincare sections, power spectra and Lyapounov exponents. The results point to the role of self-modulation of the InsP3 signal by 3-kinase as a possible source for complex temporal patterns in Ca2+ signaling.</para>
<para>
Bursting, Chaos and Birhythmicity Originating from Self-modulation of the Inositol 1,4,5-triphosphate Signal in a Model for Intracellular Ca2+ Oscillations, Houart G, Dupont G, Goldbeter A, 1999,
<emphasis>Bulletin of Mathematical Biology</emphasis>
, 61, 507-530
<ulink url="http://www.ncbi.nlm.nih.gov/pubmed/17883229">PubMed ID: 17883229</ulink>
</para>
<informalfigure float="0" id="______">
<mediaobject>
<imageobject>
<objectinfo>
<title>Model Diagram</title>
</objectinfo>
<imagedata fileref="houart_1999.png" />
</imageobject>
</mediaobject>
<caption>Schematic representation of the model based on the interplay between CICR and the Ca2+-stimulated degradation of InsP3. Besides simple periodic oscillations, this model can produce complex Ca2+ oscillations including bursting, chaos, quasiperiodic behavior, as well as birhythmicity.</caption>
</informalfigure>
</sect1>
</article>
</documentation></semsim:hasCellMLdocumentation>
</rdf:Description>
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<dcterms:description>degree of stimulation of the cell by an agonist</dcterms:description>
</rdf:Description>
<rdf:Description rdf:about="./houart_1999.cellml#V5.p">
<dcterms:description>Hill coefficient of IP3 phosphorylation by 3-kinase</dcterms:description>
</rdf:Description>
<rdf:Description rdf:about="./houart_1999.cellml#cytosol.V_3">
<bqbiol:isVersionOf rdf:resource="https://identifiers.org/opb/OPB_00593"/>
<dcterms:description>calcium flux from intracellular stores into the cytosol</dcterms:description>
</rdf:Description>
<rdf:Description rdf:about="./houart_1999.cellml#Vin.V_0">
<dcterms:description>constant calcium flux into the cell</dcterms:description>
</rdf:Description>
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<bqbiol:isVersionOf rdf:resource="https://identifiers.org/opb/OPB_00593"/>
<dcterms:description>calcium flux from the cytosol into intracellular stores</dcterms:description>
</rdf:Description>
<rdf:Description rdf:about="./houart_1999.cellml#V5.V_5">
<bqbiol:isVersionOf rdf:resource="https://identifiers.org/opb/OPB_00593"/>
<dcterms:description>phosphorylation rate of IP3 by 3-kinase</dcterms:description>
</rdf:Description>
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<bqbiol:is rdf:resource="https://identifiers.org/opb/OPB_01296"/>
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<bqbiol:is rdf:resource="https://identifiers.org/opb/OPB_01296"/>
<dcterms:description>rate constant of IP3 metabolism by 5-phosphatase</dcterms:description>
</rdf:Description>
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<dcterms:description>total calcium flux into the cell</dcterms:description>
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<bqbiol:isVersionOf rdf:resource="https://identifiers.org/opb/OPB_00340"/>
<dcterms:description>half-saturation constant of IP3 phosphorylation by 3-kinase</dcterms:description>
</rdf:Description>
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<dcterms:description>maximum pumping rate of cytosolic calcium from the cytosol into intracellular stores</dcterms:description>
</rdf:Description>
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<dcterms:description>Hill coefficient of calcium pumping into intracellular stores</dcterms:description>
</rdf:Description>
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<dcterms:description>maximum rate of stimulus-induced synthesis of IP3</dcterms:description>
</rdf:Description>
</rdf:RDF>
