Neurotransmitter levels and synaptic strength at the Drosophila larval neuromuscular junction are not altered by mutation in the sluggish-A gene, which encodes proline oxidase and affects adult locomotion.
Shayan AJ, Brodin L, Ottersen OP, Birinyi A, Hill CE, Govind CK, Atwood HL, Shupliakov O. J Neurogenet. 2000 Sep; 14(3):165-92.