ZNRF1

In a study identifying genes in rat that are upregulated in response to nerve damage, a gene which is highly expressed in ganglia and in the central nervous system was found. The protein encoded by the rat gene contains both a zinc finger and a RING finger motif and is localized in the endosome/lysosome compartment, indicating that it may be involved in ubiquitin-mediated protein modification. The protein encoded by this human gene is highly similar in sequence to that encoded by the rat gene. [provided by RefSeq]

Full Name

zinc and ring finger 1

Function

E3 ubiquitin-protein ligase that mediates the ubiquitination of AKT1 and GLUL, thereby playing a role in neuron cells differentiation. Plays a role in the establishment and maintenance of neuronal transmission and plasticity. Regulates Schwann cells differentiation by mediating ubiquitination of GLUL. Promotes neurodegeneration by mediating 'Lys-48'-linked polyubiquitination and subsequent degradation of AKT1 in axons: degradation of AKT1 prevents AKT1-mediated phosphorylation of GSK3B, leading to GSK3B activation and phosphorylation of DPYSL2/CRMP2 followed by destabilization of microtubule assembly in axons (Probable).

Biological Process

Biological Process proteasome-mediated ubiquitin-dependent protein catabolic process Source:UniProtKB
Biological Process protein K48-linked ubiquitination Source:UniProtKB

Cellular Location

Endosome
Lysosome
Membrane
Cytoplasmic vesicle, secretory vesicle, synaptic vesicle membrane
Note: Associated with synaptic vesicle membranes in neurons.