======= FAM175B ======= == Gene Information == * **Official Symbol**: ABRAXAS2 * **Official Name**: abraxas 2, BRISC complex subunit * **Aliases and Previous Symbols**: N/A * **Entrez ID**: [[https://www.ncbi.nlm.nih.gov/gene/?term=23172|23172]] * **UniProt**: [[https://www.uniprot.org/uniprot/Q15018|Q15018]] * **Interactions**: [[https://thebiogrid.org/search.php?search=FAM175B&organism=9606|BioGRID]] * **PubMed articles**: [[https://www.ncbi.nlm.nih.gov/pubmed/?term=gene%20FAM175B|Open PubMed]] * **OMIM**: [[https://omim.org/entry/611144|Open OMIM]] == Function Summary == * **Entrez Summary**: N/A * **UniProt Summary**: Component of the BRISC complex, a multiprotein complex that specifically cleaves 'Lys-63'-linked polyubiquitin, leaving the last ubiquitin chain attached to its substrates (PubMed:19214193, PubMed:20032457, PubMed:20656690, PubMed:24075985). May act as a central scaffold protein that assembles the various components of the BRISC complex and retains them in the cytoplasm (PubMed:20656690). Plays a role in regulating the onset of apoptosis via its role in modulating 'Lys- 63'-linked ubiquitination of target proteins (By similarity). Required for normal mitotic spindle assembly and microtubule attachment to kinetochores via its role in deubiquitinating NUMA1 (PubMed:26195665). Plays a role in interferon signaling via its role in the deubiquitination of the interferon receptor IFNAR1; deubiquitination increases IFNAR1 activities by enhancing its stability and cell surface expression (PubMed:24075985, PubMed:26344097). Down-regulates the response to bacterial lipopolysaccharide (LPS) via its role in IFNAR1 deubiquitination (PubMed:24075985). Required for normal induction of p53/TP53 in response to DNA damage (PubMed:25283148). Independent of the BRISC complex, promotes interaction between USP7 and p53/TP53, and thereby promotes deubiquitination of p53/TP53, preventing its degradation and resulting in increased p53/TP53-mediated transcription regulation and p53/TP53-dependent apoptosis in response to DNA damage (PubMed:25283148). {ECO:0000250|UniProtKB:Q3TCJ1, ECO:0000269|PubMed:19214193, ECO:0000269|PubMed:20032457, ECO:0000269|PubMed:20656690, ECO:0000269|PubMed:24075985, ECO:0000269|PubMed:25283148}. No Pfam Domain information is available for this gene. |BRISC complex| |microtubule minus-end| |spindle pole centrosome| |attachment of spindle microtubules to kinetochore| |polyubiquitin modification-dependent protein binding| |protein K63-linked deubiquitination| |mitotic spindle assembly| |response to ischemia| |mitotic spindle organization| |spindle assembly| |microtubule cytoskeleton organization involved in mitosis| |mitotic nuclear division| |spindle organization| |midbody| |nuclear chromosome segregation| |microtubule binding| |chromosome segregation| |protein deubiquitination| |nuclear division| |protein modification by small protein removal| |organelle fission| |microtubule cytoskeleton organization| |centrosome| |cell division| |mitotic cell cycle process| |microtubule-based process| |mitotic cell cycle| |organelle assembly| |protein modification by small protein conjugation or removal| |cell cycle process| |cytoskeleton organization| |proteolysis| |cell cycle| \\ === CRISPR Data === ^Screen^Score^ |[[:results:exp499|LY2090314 0.003μM R08 exp499]]|-3.02| |[[:results:exp500|LY2090314 0.003μM R08 exp500 no dilution day6]]|-2.29| |[[:results:exp363|GSK-J4 1-1.25μM to day4 R07 exp363]]|1.71| |[[:results:exp299|Talazoparib 0.006μM R06 exp299]]|1.75| |[[:results:exp477|DKK1 89ng/ml R08 exp477]]|1.82| |[[:results:exp342|Calcium Ionophore 0.4μM R07 exp342]]|1.96| |[[:results:exp2|5-Fluorouracil 20μM R00 exp2]]|1.97| 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**: 17944 * **Expression level (log2 read counts)**: 5.05 {{:chemogenomics:nalm6 dist.png?nolink |}}