IMP.pmi.restraints.basic.MembraneRestraint Class Reference

Restrain particles to be above, below, or inside a planar membrane. More...

Inherits RestraintBase.

Detailed Description

Restrain particles to be above, below, or inside a planar membrane.

The membrane is defined to lie on the xy plane with a given z coordinate and thickness, and particles are restrained (by their z coordinates) with a simple sigmoid score.

Note

This class is only available in Python.

Definition at line 306 of file restraints/basic.py.

Public Member Functions
def	__init__
	Setup the restraint. More...
def	create_membrane_density
	Create an MRC density file to visualize the membrane. More...

Constructor & Destructor Documentation

def IMP.pmi.restraints.basic.MembraneRestraint.__init__	(		self,
			hier,
			objects_above = None,
			objects_inside = None,
			objects_below = None,
			center = 0.0,
			thickness = 30.0,
			softness = 3.0,
			plateau = 1e-10,
			resolution = 1,
			weight = 1.0,
			label = None
	)

Setup the restraint.

Parameters

objects_inside	list or tuples of objects in membrane (e.g. ['p1', (10, 30,'p2')])
objects_above	list or tuples of objects above membrane
objects_below	list or tuples of objects below membrane
thickness	Thickness of the membrane along the z-axis
softness	Softness of the limiter in the sigmoid function
plateau	Parameter to set the probability (=1- plateau)) at the plateau phase of the sigmoid
weight	Weight of restraint
label	A unique label to be used in outputs and particle/restraint names.

Definition at line 320 of file restraints/basic.py.

Member Function Documentation

def IMP.pmi.restraints.basic.MembraneRestraint.create_membrane_density	(		self,
			file_out = 'membrane_localization.mrc'
	)

Create an MRC density file to visualize the membrane.

Definition at line 413 of file restraints/basic.py.

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The documentation for this class was generated from the following file:

• restraints/basic.py