Table 1.

Antibody inventory for synapse identification in microgravity and control utricles

Target	Manufacturer (Product no.); Purification	Immunogen	Host (Mono- or Polyclonal)	Working Concentration	Positive Control	Negative Control
CtBP2	BD Biosciences (612044); affinity purified	Amino acids 361–445 of mouse CtBP2	Mouse (monoclonal)	1:250	Braude et al. (2015)	Primary Ab omission
Shank1a	Neuromics (19016); affinity purified	Peptide mapping COOH-terminus of rat Shank1a	Rabbit (polyclonal)	1:250	Braude et al. (2015)	Stella et al. (2012); Primary Ab omission