Abstract:
:The hereditary spastic paraplegias (HSPs) are genetically heterogeneous disorders characterized by progressive lower-extremity weakness and spasticity. The molecular pathogenesis is poorly understood. We report discovery of a dominant negative mutation in the NIPA1 gene in a kindred with autosomal dominant HSP (ADHSP), linked to chromosome 15q11-q13 (SPG6 locus); and precisely the same mutation in an unrelated kindred with ADHSP that was too small for meaningful linkage analysis. NIPA1 is highly expressed in neuronal tissues and encodes a putative membrane transporter or receptor. Identification of the NIPA1 function and ligand will aid an understanding of axonal neurodegeneration in HSP and may have important therapeutic implications.
journal_name
Am J Hum Genetjournal_title
American journal of human geneticsauthors
Rainier S,Chai JH,Tokarz D,Nicholls RD,Fink JKdoi
10.1086/378817subject
Has Abstractpub_date
2003-10-01 00:00:00pages
967-71issue
4eissn
0002-9297issn
1537-6605pii
S0002-9297(07)63643-Xjournal_volume
73pub_type
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journal_title:American journal of human genetics
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journal_title:American journal of human genetics
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journal_title:American journal of human genetics
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journal_title:American journal of human genetics
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