def __init__(self, GDP=0, GTP=0, unbound=0):
box = DiffusionBox()
# We want absolute number of molecules.
self.GDP = box.membrane_to_absolute(GDP)
self.GTP = box.membrane_to_absolute(GTP)
self.unbound = box.cytosolic_to_absolute(unbound)
super().__init__(self.GDP + self.GTP + self.unbound)
def __init__(self, concentration=None, **kwargs):
if concentration is not None:
box = DiffusionBox()
if self.location == 'cytosolic':
self.num_molecules = box.cytosolic_to_absolute(concentration)
else:
self.num_molecules = box.membrane_to_absolute(concentration)
else:
super().__init__(**kwargs)
