Table 1. Antibodies used for immunocytochemistry.

Antibody	Immunogen	Working dilution	Source
Anti-histamine	histamine coupled to KLH with carbodiimide	1∶500 (fluorescence)	Cat. No. AB5885, Chemicon-Millipore
Anti-serotonin (5-HT)	5-HT coupled to BSA with PFA	1∶1,000 (fluorescence); 1∶200,000 (PAP)	Cat. No. 20080, ImmunoStar
Anti-tyramine	p-tyramine-glutaraldehyde-N-alpha-acetyl-L-lysine-N-methylamide	1∶1,000 (fluorescence); 1∶5,000 (PAP)	Cat. No. AB124, Chemicon-Millipore
Anti-GABA	GABA coupled to BSA	1∶1,000 (fluorescence)	Cat. No. A 2052, Sigma
Anti-synapsin	synapsin protein coupled to GST	1∶50 to 1∶80 (fluorescence)	3C11, DSHB

Abbreviations: BSA, bovine serum albumin; DSHB, Developmental Studies Hybridoma Bank; GABA, γ-aminobutyric acid; GST, glutathione-S-transferase; KLH, keyhole limpet hemocyanin; PAP, peroxidase-anti-peroxidase technique; PFA, paraformaldehyde.