Entrez Summary: This gene is specifically expressed in Schwann cells of the peripheral nervous system and encodes a type I transmembrane glycoprotein that is a major structural protein of the peripheral myelin sheath. The encoded protein contains a large hydrophobic extracellular domain and a smaller basic intracellular domain, which are essential for the formation and stabilization of the multilamellar structure of the compact myelin. Mutations in this gene are associated with autosomal dominant form of Charcot-Marie-Tooth disease type 1 (CMT1B) and other polyneuropathies, such as Dejerine-Sottas syndrome (DSS) and congenital hypomyelinating neuropathy (CHN). A recent study showed that two isoforms are produced from the same mRNA by use of alternative in-frame translation termination codons via a stop codon readthrough mechanism. [provided by RefSeq, Oct 2015].
UniProt Summary: Is an adhesion molecule necessary for normal myelination in the peripheral nervous system. It mediates adhesion between adjacent myelin wraps and ultimately drives myelin compaction. {ECO:0000269|PubMed:10545037, ECO:0000269|PubMed:18337304}.
Pfam DomainsGO Terms
Pfam Domains
V-set
Myelin-PO C
GO Terms
cell aggregation
myelin sheath
rough endoplasmic reticulum
myelination
axon ensheathment
ensheathment of neurons
structural molecule activity
basolateral plasma membrane
lysosome
cell-cell adhesion via plasma-membrane adhesion molecules
chemical synaptic transmission
anterograde trans-synaptic signaling
trans-synaptic signaling
synaptic signaling
cell-cell adhesion
negative regulation of apoptotic process
negative regulation of programmed cell death
cell adhesion
biological adhesion
negative regulation of cell death
cell-cell signaling
integral component of plasma membrane
regulation of apoptotic process
regulation of programmed cell death
regulation of cell death
CRISPR Data
Compound HitMost Correlated Genes in ChemogenomicsTissues where Essential in the Avana Dataset (DepMap 20Q1)
Compound Hit
No hits were found.
Most Correlated Genes in Chemogenomics
No correlation found to any other genes in chemogenomics.
Tissues where Essential in the Avana Dataset (DepMap 20Q1)
Global Fraction of Cell Lines Where Essential: 0/739