Table 1.

Connexin types in the hippocampal formation.

Connexin type	Coupled cell types	Source
Cx26	Astrocyte–astrocyte Astrocyte–oligodendrocyte (at the astocyte membrane)
Cx30	Astrocyte–astrocyte Astrocyte–oligodendrocyte (at the astocyte membrane)	Condorelli et al. (2002) Nagy et al. (2001) Rash et al. (2001a)
Cx43	Astrocyte–astrocyte Astrocyte–oligodendrocyte (at the astocyte membrane)	Theis et al. (2003) Wallraff et al. (2004)
Cx32	Astrocyte–oligodendrocyte (at the oligodendrocyte membrane)	Rash et al. (2001a)
	Astrocyte–oligodendrocyte (at the oligodendrocyte membrane) Oligodendrocyte–oligodendrocyte	Kunzelmann et al. (1997)
Cx45	Astrocyte–oligodendrocyte (at the oligodendrocyte membrane) Oligodendrocyte–oligodendrocyte	Kunzelmann et al. (1997)
Cx36	Interneurons (connections within particular class): basket cells, axoaxonic bistratified cells	Baude et al. (2007)
	Interneurons (specifically)	Kosaka and Hama (1985)