Table 1. Table of primary antibodies used.

List of the primary antibodies used in the study with their respective specifications.

Antigen	Description of immunogen	Source, host species, cat. #, clone or lot #, RRID	Working concentration used (µg/ml)
calbindin	purified bovine kidney CB 28 kD	Sigma Chemical Co., cat. # C9848, RRID: AB_476894	8.3
cholera toxin β subunit	Ctβ itself	List Biological Laboratories, cat. #703, RRID: AB_10013220	15.3
Fluorogold	FG itself	Millipore, cat. #AB153, RRID: AB_90738	30.5
Fos	synthetic peptide corresponding to amino acids 4-17 (SGFNADYEASSSRC) of human c-Fos	Calbiochem, cat. # PC38, RRID: AB_2313765	11.5
nitric oxide synthase	amino acids 251-270 of nitric oxide synthase (GDNDRVFNDLWGKDNVPVILC) conjugated to keyhole limpet cyanin	Sigma Chemical Company, cat. #N7155, RRID: AB_260795	21.5
μ-opioid receptor	synthetic peptide corresonding to amino acids LENLEAETAPLP at the COOH terminus of the μ-opioid receptor	Gramsch Laboratories, cat. # OR-600, RRID: AB_2314811	16.0
parvalbumin	purified carp muscle parvalbumin	Sigma Chemical Co., clone PA-235, cat. # P3088, RRID: AB 477329	26.3
tyrosine hydroxylase	tyrosine hydroxylase from PC12 cells	Millipore, cat. # MAB318, RRID: AB_2315522	28.8