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      Association of mutations in a lysosomal protein with classical late-infantile neuronal ceroid lipofuscinosis.

      Science (New York, N.Y.)
      American Association for the Advancement of Science (AAAS)

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          Abstract

          Classical late-infantile neuronal ceroid lipofuscinosis (LINCL) is a fatal neurodegenerative disease whose defective gene has remained elusive. A molecular basis for LINCL was determined with an approach applicable to other lysosomal storage diseases. When the mannose 6-phosphate modification of newly synthesized lysosomal enzymes was used as an affinity marker, a single protein was identified that is absent in LINCL. Sequence comparisons suggest that this protein is a pepstatin-insensitive lysosomal peptidase, and a corresponding enzymatic activity was deficient in LINCL autopsy specimens. Mutations in the gene encoding this protein were identified in LINCL patients but not in normal controls.

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          Journal
          9295267
          10.1126/science.277.5333.1802

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