Gap, tight, adherens junctions' components differentially expressed during the post-natal mammary gland development.
Junctional proteins are generally localized at the plasma membrane suggesting that they are functional during the development.
Cx43 constantly interacts with β-catenin, while it's interaction with E-cadherin and Claudin-7 is stage-dependent.
Cx32 interacts with E-cadherin, β-catenin and Cx26 throughout lactation.
Cx30 interacts with Cx26 during the last trimester of pregnancy.