======= 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 |}}