======= SPRR2E ======= == Gene Information == * **Official Symbol**: SPRR2E * **Official Name**: small proline rich protein 2E * **Aliases and Previous Symbols**: N/A * **Entrez ID**: [[https://www.ncbi.nlm.nih.gov/gene/?term=6704|6704]] * **UniProt**: [[https://www.uniprot.org/uniprot/P22531|P22531]] * **Interactions**: [[https://thebiogrid.org/search.php?search=SPRR2E&organism=9606|BioGRID]] * **PubMed articles**: [[https://www.ncbi.nlm.nih.gov/pubmed/?term=gene%20SPRR2E|Open PubMed]] * **OMIM**: [[https://omim.org/entry/617588|Open OMIM]] == Function Summary == * **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. No Pfam Domain information is available for this gene. |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 === ^Screen^Score^ |[[:results:exp451|Atovaquone 15μM R08 exp451]]|-1.76| |[[:results:exp47|Lapatinib 5μM R01 exp47]]|1.82| No correlation found to any other genes in chemogenomics. Global Fraction of Cell Lines Where Essential: 0/739 ^Tissue^Fraction Of Cell Lines Where Essential^ |1290807.0|0/1| |909776.0|0/1| |bile duct|0/28| |blood|0/28| |bone|0/26| |breast|0/33| |central nervous system|0/56| |cervix|0/4| |colorectal|0/17| |esophagus|0/13| |fibroblast|0/1| |gastric|0/16| |kidney|0/21| |liver|0/20| |lung|0/75| |lymphocyte|0/16| |ovary|0/26| |pancreas|0/24| |peripheral nervous system|0/16| |plasma cell|0/15| |prostate|0/1| |skin|0/24| |soft tissue|0/9| |thyroid|0/2| |upper aerodigestive|0/22| |urinary tract|0/29| |uterus|0/5| == Essentiality in NALM6 == * **Essentiality Rank**: 2420 * **Expression level (log2 read counts)**: -6.6 {{:chemogenomics:nalm6 dist.png?nolink |}}