LRIG1 protein Q96JA1 is coded by a gene on a chromosome band 3p14.3, this region is known to be deleted in various human cancers.
LRIG1 is considered to be a a tumour suppressor gene in humans.
LRIG1 is an integral cell-surface membrane protein that is expressed by specific cells in various human tissues and that its 143-kDa form might be cleaved into 111-kDa and 32-kDa fragments.
The LRIG1 protein may inhibit the growth of tumors of glial cells and the down-regulation of the LRIG1 gene may be involved in the development and progression of the tumor.