disease:Haploinsufficiency of CLDN3 may be the cause of certain cardiovascular and musculo-skeletal abnormalities observed in Williams-Beuren syndrome (WBS) , a rare developmental disorder. It is a contiguous gene deletion syndrome involving genes from chromosome band 7q11.23. ,function:Plays a major role in tight junction-specific obliteration of the intercellular space , through calcium-independent cell-adhesion activity. ,similarity:Belongs to the claudin family. ,subunit:Can form homo- and heteropolymers with other CLDN. Homopolymers interact with CLDN1 and CLDN2 homopolymers. Directly interacts with TJP1/ZO-1 , TJP2/ZO-2 and TJP3/ZO-3. ,
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