Entrez Summary: This gene encodes a member of a family of small proline-rich proteins clustered in the epidermal differentiation complex on chromosome 1q21. The encoded protein, along with other family members, is a component of the cornified cell envelope that forms beneath the plasma membrane in terminally differentiated stratified squamous epithelia. This envelope serves as a barrier against extracellular and environmental factors. The seven SPRR2 genes (A-G) appear to have been homogenized by gene conversion compared to others in the cluster that exhibit greater differences in protein structure. [provided by RefSeq, Feb 2014].
UniProt Summary: Cross-linked envelope protein of keratinocytes. It is a keratinocyte protein that first appears in the cell cytosol, but ultimately becomes cross-linked to membrane proteins by transglutaminase. All that results in the formation of an insoluble envelope beneath the plasma membrane.
Pfam DomainsGO Terms
Pfam Domains
No Pfam Domain information is available for this gene.
GO Terms
structural constituent of epidermis
peptide cross-linking
cornified envelope
cornification
structural molecule activity
keratinization
keratinocyte differentiation
epidermal cell differentiation
skin development
epidermis development
epithelial cell differentiation
programmed cell death
cell death
epithelium development
tissue development
CRISPR Data
Compound HitMost Correlated Genes in ChemogenomicsTissues where Essential in the Avana Dataset (DepMap 20Q1)