" /> Neuropathy, hereditary sensory and autonomic, type ix, with developmental delay - CISMeF





Preferred Label : Neuropathy, hereditary sensory and autonomic, type ix, with developmental delay;

Symbol : HSAN9;

CISMeF acronym : SPG49;

Type : Phenotype, molecular basis known;

Alternative titles and symbols : Spastic paraplegia 49, autosomal recessive; SPG49;

Description : SPG49 is an autosomal recessive complicated form of spastic paraplegia, a neurodegenerative disorder of the corticospinal tracts. It is characterized by delayed psychomotor development, mental retardation, and onset of spastic paraplegia in the first decade. Affected individuals also have dysmorphic features, thin corpus callosum on brain imaging, and episodes of central apnea, which may be fatal (summary by Oz-Levi et al., 2012). For a general phenotypic description and a discussion of genetic heterogeneity of autosomal recessive spastic paraplegia, see 270800.;

Inheritance : Autosomal recessive;

Molecular basis : Caused by mutation in the tectonin beta-propeller repeat-containing protein 2 gene (TECPR2, 615000.0001);

Prefixed ID : #615031;

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20/06/2025


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