Abstract
Familial autosomal dominant calcium pyrophosphate dihydrate (CPPD) chondrocalcinosis has previously been mapped to chromosome 5p15. We have identified a mutation in the ANKH gene that segregates with the disease in a family with this condition. ANKH encodes a putative transmembrane inorganic pyrophosphate (PPi) transport channel. We postulate that loss of function of ANKH causes elevated extracellular PPi levels, predisposing to CPPD crystal deposition.
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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Amino Acid Sequence
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Calcium Pyrophosphate / metabolism*
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Chondrocalcinosis / genetics*
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Chondrocalcinosis / metabolism
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Chromosomes, Human, Pair 5
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Humans
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Membrane Proteins / genetics*
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Metabolic Diseases / genetics*
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Molecular Sequence Data
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Mutation
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Pedigree
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Phosphate Transport Proteins
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Sequence Homology, Amino Acid
Substances
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ANKH protein, human
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Membrane Proteins
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Phosphate Transport Proteins
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Calcium Pyrophosphate