Parameters of ClassicFiber

Variables
real	growing_speed [2]
	see ClassicFiber More...
real	growing_force
	Characteristic force of assembly state. More...
real	shrinking_speed
	speed of disassembly state
real	catastrophe_rate [2]
	Rate of stochastic switch from assembly to disassembly. More...
real	rescue_rate
	Rate of stochastic switch from disassembly to assembly.
real	min_length
	Minimum authorized length. More...
Fate	fate
	Action that is taken when the fiber shrinks below min_length

Detailed Description

Inherits Parameters of Fiber.

Variable Documentation

real catastrophe_rate[2]

The catastrophe rate depends on the growth rate of the corresponding tip, which is itself reduced by antagonistic force.
The correspondance is :

1/catastrophe_rate = a + b * growth_speed

where growth_speed is calculated as explained in growing_speed, and parameters a and b are derived from:

• catastrophe_rate[0] = the catastrophe rate in the absence of force.
• catastrophe_rate[1] = the catastrophe rate of a stalled tip.

real growing_force

Antagonistic force decrease assembly rate exponentially.

real growing_speed[2]

Speed of assembly state

growth_speed = monomer_fraction * growing_speed[0] * exp(force/growing_force) + growing_speed[1];

monomer_fraction in [0,1] reflect the amount of free monomers. Antagonistic force is negative ( force < 0 ). Force directed in the same direction as assembly has no effect.

The parameters are:

• growing_speed[0] = force-dependent assembly rate.
• growing_speed[1] = constant term, which can be negative to represent spontaneous disassembly.
• growing_force = characteristic force

real min_length

When the fiber becomes shorter than min_length, the action specified by fate is applied.