>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >> module's name: B >> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >-----------------------------------------------------------------------> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> B: > Inactivation function (time constant method) > >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >------------------------------->---------------------------------------> > > > > 1 > B = ssB (1) > > > > >------------------------------->---------------------------------------> 2 > ssB - B > -1.0 >IV< > dB/dt= ------------ (2) > > tB > >------------------------------->---------------------------------------> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ssB: > Steady state value for activation > >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >----------------------->------------------------------------------------------> 1 > 1 > -30.0 >h< > ssB = -------------------- (1) > 11.0 >s< > +- -+ p > 1.0 >p< > | (V-h)/s | > > |1 + e | > > +- -+ > > > >----------------------->------------------------------------------------------> > 2 > 1 - Bn > > 0.15 >.15 Bn< > ssB = -------------------- + Bn > > -16.4 >-7.4 h< > +- -+ p > > 1.5 >1.5 s< > | (V-h)/s | (2) > > 2 >2 p< > |1 + e | > > > +- -+ > >----------------------->------------------------------------------------------> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> tB: > Time constant for activation > >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >----------------------->------------------------------------------------------> > > > > 1 > tB = tx (1)> > xxxx.xx >tx< > > >----------------------->------------------------------------------------------> > 2 > tx -tn > > 0.04 >.2 tx< > tB = -------------------- + tn (2)> > 0.02 >.02 tn< > +- -+ p > > -10.0 >-15 h< > | (V-h)/s | > > 1.0 >8.3 s< > |1 + e | > > 1.0 >1 p< > +- -+ > > > > >----------------------->------------------------------------------------------> 3 > tx -tn > 0.33 >tx< > tB = ----------------------------------- + tn (3)> 0.0080 >tn< > +- -+p1 +- -+p2 > -56.0 >h1< > | (V-h1)/s1 | | (V-h2)/s2 | > -16.0 >s1< > |1+e | |1+e | > 1.0 >p1< > +- -+ +- -+ > -80.0 >h2< > > 70.0 >s2< > > 1.0 >p2< > > >----------------------->------------------------------------------------------> > > +-- -+ > > 4 > | 1 - rtn | > > xxx.xx >tx< > tB = tx | -------------------- + rtn | (4)> > xxx.xx >rtn< > | +- -+ p | > > xxx.xx >h< > | | (V-h)/s | | > > xxx.xx >s< > | |1 + e | | > > x >p< > | +- -+ | > > > +-- -+ > > > > >----------------------->------------------------------------------------------> > > +-- -+ > > 5 > | 1 - rtn | > > xxx.xx >tx< > tB=tx | ---------------------------------- +rtn | (5)> > xxx.xx >rtn< > | +- -+p1+- -+p2 | > > xxx.xx >h1< > | | (V-h1)/s1| | (V-h2)/s2| | > > xxx.xx >s1< > | |1+e | |1+e | | > > x >p1< > | +- -+ +- -+ | > > xxx.xx >h2< > +-- -+ > > xx.xx >s2< > > > x >p2< > > >----------------------->------------------------------------------------------> > Ligand > ------- > ssB is the steady-stae value of activation and tB is its time constant. > h's are half parameters, s's are shape parameters and p's are values of the exponents. > Bn is the minimal value of activation. > tx is the maximal value of the time constant and tn is its minimal value. > rtn = tn/tx