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Description

Reticulon-4-interacting protein 1, mitochondrial (UniProt: Q924D0, also known as NOGO-interacting mitochondrial protein, RTN4IP1) is encoded by the Rtn4ip1 (also known as Nimp) gene in murine species. RTN4IP1 is an outer mitochondrial membrane protein that interacts with reticulon 4, which is a potent inhibitor of regeneration following spinal cord injury. This interaction may be important for reticulon-induced inhibition of neurite growth. RNT4IP1 plays a role in the regulation of retinal ganglion cell (RGC) neurite outgrowth, and hence in the development of the inner retina and optic nerve. It is widely expressed in mitochondria-enriched tissues and co-localizes with the endoplasmic reticulum HSPA5 at spots corresponding to contacts with mitochondria. Mutations in Rtn4ip1 gene can cause optic atrophy 10 that leads to vision loss sometime in early childhood.