======= 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 |}}