If no neuroligin-1 is formed, the nerve endings remain at an immature stage and release fewer neurotransmitters; the flow of information is interrupted.
The protein molecule neuroligin-1 plays an important role in this as it stimulates the necessary maturation processes at the contact sites (synapses) of the nerves.
In addition, the nerve endings from where information is sent must release slight amounts of neurotransmitters to stimulate the neuroligin in the postsynaptic nerve cell.