Abstract
Mutations in PRKCSH, encoding the beta-subunit of glucosidase II, an N-linked glycan-processing enzyme in the endoplasmic reticulum (ER), cause autosomal dominant polycystic liver disease. We found that mutations in SEC63, encoding a component of the protein translocation machinery in the ER, also cause this disease. These findings are suggestive of a role for cotranslational protein-processing pathways in maintaining epithelial luminal structure and implicate noncilial ER proteins in human polycystic disease.
Publication types
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Research Support, Non-U.S. Gov't
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Research Support, U.S. Gov't, P.H.S.
MeSH terms
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Chromosomes, Human, Pair 6 / genetics
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DNA Mutational Analysis
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Endoplasmic Reticulum / metabolism
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Humans
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Membrane Proteins / genetics*
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Molecular Chaperones
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Mutation*
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Polycystic Kidney, Autosomal Dominant / genetics*
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Protein Processing, Post-Translational
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RNA-Binding Proteins
Substances
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Membrane Proteins
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Molecular Chaperones
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RNA-Binding Proteins
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SEC63 protein, human
Associated data
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OMIM/173900
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OMIM/173910
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OMIM/174050