CspEY22488 induces a decrease in quantal size and an increase in quantal content compared to wild type.
Csp[+]/CspEY22488, GluRIIASP16 has abnormal neurophysiology phenotype
Synaptic homeostasis is impaired in the NMJs of GluRIIASP16; CspEY22488/+ mutant larvae compared with either mutant alone. The double mutant larvae show the decreased quantal size seen in GluRIIASP16 mutants but the usual compensatory upregulation of quantal content is not seen: quantal content is not increased compared with heterozygous CspEY22488 mutants alone. As a result, evoked postsynaptic excitation is impaired.