Fig. 8.
GAT-1 does not colocalize with TH in DA-IPC processes. Vertical sections mouse retina. a: A TH-ir perikaryon and processes are seen at the INL/IPL border. a,b: In the INL, TH-ir profiles (upward pointing arrow) and GAT-1-ir profiles (downward pointing arrow) constitute separate populations. This separation indicates the presence of a GABAergic IPC that is not dopaminergic. GAT-1, GABA plasma membrane transporter 1. Scale bar = 10 μm in a (applies to both panels).