Harmonizome 3.0

nitrogen permease regulator-like 3 (S. cerevisiae)

Predicted to enable GTPase activator activity. Involved in cellular response to amino acid starvation and negative regulation of TORC1 signaling. Part of GATOR1 complex. Is active in lysosomal membrane. Implicated in familial focal epilepsy with variable foci 3. [provided by Alliance of Genome Resources, Mar 2025]

nitrogen permease regulator-like 2 (S. cerevisiae)

Enables GTPase activator activity. Involved in cellular response to amino acid starvation; negative regulation of TORC1 signaling; and negative regulation of kinase activity. Part of GATOR1 complex. Is active in lysosomal membrane. Implicated in familial focal epilepsy with variable foci 2. [provided by Alliance of Genome Resources, Mar 2025]

Lymphocyte cytosolic protein, molecular weight 20kD

sacsin molecular chaperone

This gene encodes the sacsin protein, which includes a UbL domain at the N-terminus, a DnaJ domain, and a HEPN domain at the C-terminus. The gene is highly expressed in the central nervous system, also found in skin, skeletal muscles and at low levels in the pancreas. This gene includes a very large exon spanning more than 12.8 kb. Mutations in this gene result in autosomal recessive spastic ataxia of Charlevoix-Saguenay (ARSACS), a neurodegenerative disorder characterized by early-onset cerebellar ataxia with spasticity and peripheral neuropathy. The authors of a publication on the effects of siRNA-mediated sacsin knockdown concluded that sacsin protects against mutant ataxin-1 and suggest that `the large multi-domain sacsin protein is able to recruit Hsp70 chaperone action and has the potential to regulate the effects of other ataxia proteins` (Parfitt et al., PubMed: 19208651). A pseudogene associated with this gene is located on chromosome 11. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, May 2013]

sacsin molecular chaperone pseudogene