======= DNAJB9 =======
== Gene Information ==
* **Official Symbol**: DNAJB9
* **Official Name**: DnaJ heat shock protein family (Hsp40) member B9
* **Aliases and Previous Symbols**: N/A
* **Entrez ID**: [[https://www.ncbi.nlm.nih.gov/gene/?term=4189|4189]]
* **UniProt**: [[https://www.uniprot.org/uniprot/Q9UBS3|Q9UBS3]]
* **Interactions**: [[https://thebiogrid.org/search.php?search=DNAJB9&organism=9606|BioGRID]]
* **PubMed articles**: [[https://www.ncbi.nlm.nih.gov/pubmed/?term=gene%20DNAJB9|Open PubMed]]
* **OMIM**: [[https://omim.org/entry/602634|Open OMIM]]
== Function Summary ==
* **Entrez Summary**: N/A
* **UniProt Summary**: Co-chaperone for Hsp70 protein HSPA5/BiP that acts as a key repressor of the ERN1/IRE1-mediated unfolded protein response (UPR) (By similarity). J domain-containing co-chaperones stimulate the ATPase activity of Hsp70 proteins and are required for efficient substrate recognition by Hsp70 proteins (PubMed:18400946). In the unstressed endoplasmic reticulum, interacts with the luminal region of ERN1/IRE1 and selectively recruits HSPA5/BiP: HSPA5/BiP disrupts the dimerization of the active ERN1/IRE1 luminal region, thereby inactivating ERN1/IRE1 (By similarity). Also involved in endoplasmic reticulum-associated degradation (ERAD) of misfolded proteins. Required for survival of B-cell progenitors and normal antibody production (By similarity). {ECO:0000250|UniProtKB:G3H0N9, ECO:0000250|UniProtKB:Q9QYI6, ECO:0000269|PubMed:18400946}.
|DnaJ|
|negative regulation of IRE1-mediated unfolded protein response|
|negative regulation of endoplasmic reticulum unfolded protein response|
|regulation of IRE1-mediated unfolded protein response|
|regulation of endoplasmic reticulum unfolded protein response|
|misfolded protein binding|
|Hsp70 protein binding|
|negative regulation of response to endoplasmic reticulum stress|
|IRE1-mediated unfolded protein response|
|ubiquitin-dependent ERAD pathway|
|regulation of response to endoplasmic reticulum stress|
|ERAD pathway|
|chaperone binding|
|endoplasmic reticulum unfolded protein response|
|B cell differentiation|
|cellular response to unfolded protein|
|cellular response to topologically incorrect protein|
|B cell activation|
|immunoglobulin production|
|response to unfolded protein|
|production of molecular mediator of immune response|
|response to topologically incorrect protein|
|lymphocyte differentiation|
|response to endoplasmic reticulum stress|
|endoplasmic reticulum lumen|
|proteasome-mediated ubiquitin-dependent protein catabolic process|
|leukocyte differentiation|
|proteasomal protein catabolic process|
|lymphocyte activation|
|ubiquitin-dependent protein catabolic process|
|modification-dependent protein catabolic process|
|modification-dependent macromolecule catabolic process|
|hemopoiesis|
|proteolysis involved in cellular protein catabolic process|
|hematopoietic or lymphoid organ development|
|cellular protein catabolic process|
|immune system development|
|protein catabolic process|
|regulation of cellular response to stress|
|nucleolus|
|cellular macromolecule catabolic process|
|leukocyte activation|
|endoplasmic reticulum membrane|
|response to organonitrogen compound|
|endoplasmic reticulum|
|macromolecule catabolic process|
|organonitrogen compound catabolic process|
|cell activation|
|response to nitrogen compound|
|negative regulation of signal transduction|
|proteolysis|
|negative regulation of cell communication|
|negative regulation of signaling|
|regulation of response to stress|
|negative regulation of response to stimulus|
|cellular response to stress|
|organic substance catabolic process|
|cellular catabolic process|
\\
=== CRISPR Data ===
^Screen^Score^
|[[:results:exp75|MK-1775 0.32μM R02 exp75]]|-2.03|
|[[:results:exp270|Campthothecin 0.001μM R06 exp270]]|-1.99|
|[[:results:exp447|Amiloride 100μM R08 exp447]]|-1.81|
|[[:results:exp35|TRAIL 5ng/ml R00 exp35]]|1.73|
|[[:results:exp187|proTAME 5μM R04 exp187]]|1.74|
|[[:results:exp125|GSK461364A 0.005μM R03 exp125]]|2.06|
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**: 17235
* **Expression level (log2 read counts)**: 3.55
{{:chemogenomics:nalm6 dist.png?nolink |}}