======= APH1B =======
== Gene Information ==
* **Official Symbol**: APH1B
* **Official Name**: aph-1 homolog B, gamma-secretase subunit
* **Aliases and Previous Symbols**: N/A
* **Entrez ID**: [[https://www.ncbi.nlm.nih.gov/gene/?term=83464|83464]]
* **UniProt**: [[https://www.uniprot.org/uniprot/Q8WW43|Q8WW43]]
* **Interactions**: [[https://thebiogrid.org/search.php?search=APH1B&organism=9606|BioGRID]]
* **PubMed articles**: [[https://www.ncbi.nlm.nih.gov/pubmed/?term=gene%20APH1B|Open PubMed]]
* **OMIM**: [[https://omim.org/entry/607630|Open OMIM]]
== Function Summary ==
* **Entrez Summary**: N/A
* **UniProt Summary**: Probable subunit of the gamma-secretase complex, an endoprotease complex that catalyzes the intramembrane cleavage of integral proteins such as Notch receptors and APP (amyloid-beta precursor protein). It probably represents a stabilizing cofactor for the presenilin homodimer that promotes the formation of a stable complex. Probably present in a minority of gamma-secretase complexes compared to APH1A. {ECO:0000269|PubMed:12297508}.
|Aph-1|
|gamma-secretase complex|
|Notch receptor processing, ligand-dependent|
|Notch receptor processing|
|membrane protein intracellular domain proteolysis|
|membrane protein proteolysis|
|endopeptidase activity|
|peptidase activity|
|ephrin receptor signaling pathway|
|transport vesicle|
|Notch signaling pathway|
|protein processing|
|locomotory behavior|
|endosome membrane|
|protein maturation|
|transmembrane receptor protein tyrosine kinase signaling pathway|
|behavior|
|positive regulation of apoptotic process|
|positive regulation of programmed cell death|
|positive regulation of cell death|
|enzyme linked receptor protein signaling pathway|
|endoplasmic reticulum|
|proteolysis|
|integral component of plasma membrane|
|positive regulation of catalytic activity|
|regulation of apoptotic process|
|regulation of programmed cell death|
|regulation of cell death|
|positive regulation of molecular function|
|gene expression|
\\
=== CRISPR Data ===
^Screen^Score^
|[[:results:exp103|Taxol 0.004μM R03 exp103]]|1.89|
|[[:results:exp362|GSK-J4 1μM R07 exp362]]|2|
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**: 6711
* **Expression level (log2 read counts)**: 4.92
{{:chemogenomics:nalm6 dist.png?nolink |}}