Survival of motor neuron or survival motor neuron (SMN) is a protein that in humans is encoded by the SMN1 and SMN2 genes.
SMN is found in the cytoplasm of all animal cells and also in the nuclear gems. It functions in transcriptional regulation, telomerase regeneration and cellular trafficking.[2] SMN deficiency, primarily due to mutations in SMN1, results in widespread splicing defects, especially in spinal motor neurons, and is one cause of spinal muscular atrophy. Research also showed a possible role of SMN in neuronal migration and/or differentiation.[3]
^Selenko P, Sprangers R, Stier G, Bühler D, Fischer U, Sattler M (January 2001). "SMN tudor domain structure and its interaction with the Sm proteins". Nature Structural Biology. 8 (1): 27–31. doi:10.1038/83014. PMID 11135666.
^Singh NN, Shishimorova M, Cao LC, Gangwani L, Singh RN (2009). "A short antisense oligonucleotide masking a unique intronic motif prevents skipping of a critical exon in spinal muscular atrophy". RNA Biology. 6 (3): 341–50. doi:10.4161/rna.6.3.8723. PMC 2734876. PMID 19430205.
^Giavazzi A, Setola V, Simonati A, Battaglia G (March 2006). "Neuronal-specific roles of the survival motor neuron protein: evidence from survival motor neuron expression patterns in the developing human central nervous system". Journal of Neuropathology and Experimental Neurology. 65 (3): 267–77. doi:10.1097/01.jnen.0000205144.54457.a3. PMID 16651888.
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