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. Author manuscript; available in PMC: 2020 Sep 1.
Published in final edited form as: Prog Retin Eye Res. 2019 May 10;72:100760. doi: 10.1016/j.preteyeres.2019.05.001

Table 2.

Summary of ion channels in interplexiform cells and different types of amacrine cells.

Salamander
ACs		 AII A17 Starburst Dopaminergic Widefield
CRH		 Interplexiform
cells (IPCs)
Na+ channels INa (most ACs) INa(NaV1.1) Weak INa TTX-insensitive NaV1.8 TTX-sensitive and insensitive INa (CRH2, 3)
No INa (CRH1)		 INa
Ca2+ channels N- & L-type L-type (CaV1.3) L-type N, P/Q L- (CaV1.2), N- (CaV2.2), P/Q (CaV2.1), & R- (CaV2.3) type ? L-type
K+ channels IKDR
IKA 		IKDR
IKA 		IKDR
IKA
BK		 IKDR (mostly Kv3.1-3.2) IKDR (Kv1.1, 1.3, 2.1)
IKA (KV4.3)
BK, SK		 ? IKDR
IKA (some IPCs)
BK (mouse)
HCN channels Ih ? Ih (mouse)