FUNCTION: Potent neurite growth inhibitor in vitro and plays a role both in the restriction of axonal regeneration after injury and in structural plasticity in the CNS. May inhibit BACE1 activity and amyloid precursor protein processing (By similarity).
SUBUNIT:Binds to RTN4R. Interacts with Bcl-xl and Bcl-2. Interacts in trans with CNTNAP1 (By similarity).
SUBCELLULAR LOCATION: Endoplasmic reticulum membrane; Multi-pass membrane protein (By similarity). Note=Anchored to the membrane of the endoplasmic reticulum through 2 putative transmembrane domains (By similarity).
ALTERNATIVE PRODUCTS: Event=Alternative splicing; Named
isoforms=3; Name=1; IsoId=Q99P72-2; Sequence=Displayed; Name=2; IsoId=Q99P72-3; Sequence=VSP_018089, VSP_018090; Name=3; IsoId=Q99P72-1; Sequence=VSP_018088, VSP_018091.
DOMAIN:Three regions, residues 59-172, 544-725 and the loop 66
amino acids, between the two transmembrane domains, known as
Nogo-66 loop, appear to be responsible for the inhibitory effect on
neurite outgrowth and the spreading of neurons. This Nogo-66 loop, mediates also the binding of RTN4 to its receptor (By similarity).
SIMILARITY: Contains 1 reticulon domain.
SEQUENCE CAUTION: Sequence=BC056373;Type=Erroneous termination;Positions=721; Note=Translated as Glu.