Mutations in TJP2 cause progressive cholestatic liver disease
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Updated: May 2, 2026

Navigating MARRVEL, a Web-Based Tool that Integrates Human Genomics and Model Organism Genetics Information
Published on: August 15, 2019
Melissa Sambrotta1, Sandra Strautnieks2, Efterpi Papouli3
1Institute of Liver Studies, Division of Transplantation Immunology and Mucosal Biology, King's College London School of Medicine, London, UK.
Abstract:
Elucidating genetic causes of cholestasis has proved to be important in understanding the physiology and pathophysiology of the liver. Here we show that protein-truncating mutations in the tight junction protein 2 gene (TJP2) cause failure of protein localization and disruption of tight-junction structure, leading to severe cholestatic liver disease. These findings contrast with those in the embryonic-lethal knockout mouse, highlighting differences in redundancy in junctional complexes between organs and species.
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