def model JIP3i as
    def import using "../cellLib/Components/units.cellml" for
        unit uM using unit uM;
        unit uM_per_s using unit uM_per_s;
    enddef;

    def comp JIP3i as
        var F_IP3: uM_per_s {pub: in};
        var K_r: uM {pub: in};
        var I_i: uM {pub: in};
        var J_IP3i: uM_per_s {pub: out};

        J_IP3i=F_IP3*(sqr(I_i)/(sqr(K_r)+sqr(I_i)));

    enddef;

enddef;