Function

Developmental neurite growth regulatory factor with a role as a negative regulator of axon-axon adhesion and growth, and as a facilitator of neurite branching. Regulates neurite fasciculation, branching and extension in the developing nervous system. Involved in down-regulation of growth, stabilization of wiring and restriction of plasticity in the adult CNS. Regulates the radial migration of cortical neurons via an RTN4R-LINGO1 containing receptor complex (By similarity). Isoform 2 reduces the anti-apoptotic activity of Bcl-xl and Bcl-2. This is likely consecutive to their change in subcellular location, from the mitochondria to the endoplasmic reticulum, after binding and sequestration. Isoform 2 and isoform 3 inhibit BACE1 activity and amyloid precursor protein processing. Induces the formation and stabilization of endoplasmic reticulum (ER) tubules (PubMed:25612671, PubMed:24262037). Regulates membrane morphogenesis in the ER by promoting tubular ER production. Influences NE expansion, nuclear pore complex formation and proper localization of inner nuclear membrane proteins (PubMed:26906412).

Protein names

Recommended name:

Reticulon-4

Short name:

NSP

Alternative name(s):

Foocen
Neurite outgrowth inhibitor
Nogo protein
Neuroendocrine-specific protein
Neuroendocrine-specific protein C homolog
RTN-x
Reticulon-5

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