======= IDH3B ======= == Gene Information == * **Official Symbol**: IDH3B * **Official Name**: isocitrate dehydrogenase (NAD(+)) 3 non-catalytic subunit beta * **Aliases and Previous Symbols**: N/A * **Entrez ID**: [[https://www.ncbi.nlm.nih.gov/gene/?term=3420|3420]] * **UniProt**: [[https://www.uniprot.org/uniprot/O43837|O43837]] * **Interactions**: [[https://thebiogrid.org/search.php?search=IDH3B&organism=9606|BioGRID]] * **PubMed articles**: [[https://www.ncbi.nlm.nih.gov/pubmed/?term=gene%20IDH3B|Open PubMed]] * **OMIM**: [[https://omim.org/entry/604526|Open OMIM]] == Function Summary == * **Entrez Summary**: Isocitrate dehydrogenases catalyze the oxidative decarboxylation of isocitrate to 2-oxoglutarate. These enzymes belong to two distinct subclasses, one of which utilizes NAD(+) as the electron acceptor and the other NADP(+). Five isocitrate dehydrogenases have been reported: three NAD(+)-dependent isocitrate dehydrogenases, which localize to the mitochondrial matrix, and two NADP(+)-dependent isocitrate dehydrogenases, one of which is mitochondrial and the other predominantly cytosolic. NAD(+)-dependent isocitrate dehydrogenases catalyze the allosterically regulated rate-limiting step of the tricarboxylic acid cycle. Each isozyme is a heterotetramer that is composed of two alpha subunits, one beta subunit, and one gamma subunit. The protein encoded by this gene is the beta subunit of one isozyme of NAD(+)-dependent isocitrate dehydrogenase. Multiple alternatively spliced transcript variants encoding different isoforms have been described for this gene. [provided by RefSeq, Sep 2016]. * **UniProt Summary**: N/A |Iso dh| |isocitrate dehydrogenase (NAD+) activity| |isocitrate metabolic process| |tricarboxylic acid metabolic process| |tricarboxylic acid cycle| |NAD binding| |electron transfer activity| |aerobic respiration| |secondary alcohol metabolic process| |cellular respiration| |electron transport chain| |magnesium ion binding| |energy derivation by oxidation of organic compounds| |alcohol metabolic process| |mitochondrial matrix| |generation of precursor metabolites and energy| |organic hydroxy compound metabolic process| |carboxylic acid metabolic process| |oxidation-reduction process| |oxoacid metabolic process| |organic acid metabolic process| |mitochondrion| |small molecule metabolic process| \\ === CRISPR Data === ^Screen^Score^ |[[:results:exp189|Temozolomide 200μM R04 exp189]]|-1.93| |[[:results:exp374|Latrunculin-B 10μM R07 exp374]]|-1.81| |[[:results:exp346|CoCl2 18μM R07 exp346]]|-1.78| |[[:results:exp299|Talazoparib 0.006μM R06 exp299]]|1.76| |[[:results:exp274|Citral 50μM R06 exp274]]|1.92| |[[:results:exp98|BI-6727 0.04μM R03 exp98]]|2.04| |[[:results:exp102|Nifuroxazide 5μM R03 exp102]]|2.56| No correlation found to any other genes in chemogenomics. Global Fraction of Cell Lines Where Essential: 0/726 ^Tissue^Fraction Of Cell Lines Where Essential^ |1290807.0|0/1| |909776.0|0/1| |bile duct|0/28| |blood|0/28| |bone|0/25| |breast|0/33| |central nervous system|0/56| |cervix|0/4| |colorectal|0/17| |esophagus|0/13| |fibroblast|0/1| |gastric|0/15| |kidney|0/21| |liver|0/20| |lung|0/75| |lymphocyte|0/14| |ovary|0/26| |pancreas|0/24| |peripheral nervous system|0/16| |plasma cell|0/15| |prostate|0/1| |skin|0/24| |soft tissue|0/7| |thyroid|0/2| |upper aerodigestive|0/22| |urinary tract|0/29| |uterus|0/5| == Essentiality in NALM6 == * **Essentiality Rank**: 15212 * **Expression level (log2 read counts)**: 6.15 {{:chemogenomics:nalm6 dist.png?nolink |}}