======= TOPORS ======= == Gene Information == * **Official Symbol**: TOPORS * **Official Name**: TOP1 binding arginine/serine rich protein * **Aliases and Previous Symbols**: N/A * **Entrez ID**: [[https://www.ncbi.nlm.nih.gov/gene/?term=10210|10210]] * **UniProt**: [[https://www.uniprot.org/uniprot/Q9NS56|Q9NS56]] * **Interactions**: [[https://thebiogrid.org/search.php?search=TOPORS&organism=9606|BioGRID]] * **PubMed articles**: [[https://www.ncbi.nlm.nih.gov/pubmed/?term=gene%20TOPORS|Open PubMed]] * **OMIM**: [[https://omim.org/entry/609507|Open OMIM]] == Function Summary == * **Entrez Summary**: This gene encodes a nuclear protein which is serine and arginine rich, and contains a RING-type zinc finger domain. It is highly expressed in the testis, and functions as an ubiquitin-protein E3 ligase. Mutations in this gene are associated with retinitis pigmentosa type 31. Alternatively spliced transcript variants, encoding different isoforms, have been observed for this locus. [provided by RefSeq, Sep 2010]. * **UniProt Summary**: Functions as an E3 ubiquitin-protein ligase and as an E3 SUMO1-protein ligase. Probable tumor suppressor involved in cell growth, cell proliferation and apoptosis that regulates p53/TP53 stability through ubiquitin-dependent degradation. May regulate chromatin modification through sumoylation of several chromatin modification-associated proteins. May be involved in DNA damage- induced cell death through IKBKE sumoylation. {ECO:0000269|PubMed:15247280, ECO:0000269|PubMed:15735665, ECO:0000269|PubMed:16122737, ECO:0000269|PubMed:17803295, ECO:0000269|PubMed:18077445, ECO:0000269|PubMed:19473992, ECO:0000269|PubMed:20188669}. |zf-C3HC4| |DNA topoisomerase binding| |retinal rod cell development| |photoreceptor cell outer segment organization| |retinal cone cell differentiation| |retinal cone cell development| |gamma-tubulin complex| |SUMO transferase activity| |camera-type eye photoreceptor cell differentiation| |cytoplasmic dynein complex| |maintenance of protein location in nucleus| |retina layer formation| |intrinsic apoptotic signaling pathway in response to DNA damage by p53 class mediator| |positive regulation of ubiquitin-protein transferase activity| |eye photoreceptor cell development| |maintenance of protein localization in organelle| |photoreceptor connecting cilium| |eye photoreceptor cell differentiation| |photoreceptor cell development| |retina morphogenesis in camera-type eye| |intrinsic apoptotic signaling pathway by p53 class mediator| |regulation of ubiquitin-protein transferase activity| |protein K48-linked ubiquitination| |neural retina development| |photoreceptor cell differentiation| |protein monoubiquitination| |protein sumoylation| |intrinsic apoptotic signaling pathway in response to DNA damage| |maintenance of protein location in cell| |maintenance of location in cell| |PML body| |ubiquitin ligase complex| |maintenance of protein location| |camera-type eye morphogenesis| |positive regulation of protein ubiquitination| |signal transduction by p53 class mediator| |spindle pole| |positive regulation of protein modification by small protein conjugation or removal| |ciliary basal body| |retina development in camera-type eye| |centriole| |antigen binding| |eye morphogenesis| |intrinsic apoptotic signaling pathway| |midbody| |protein localization to nucleus| |maintenance of location| |regulation of protein ubiquitination| |ubiquitin protein ligase activity| |regulation of protein modification by small protein conjugation or removal| |ubiquitin-protein transferase activity| |sensory organ morphogenesis| |apoptotic signaling pathway| |protein polyubiquitination| |camera-type eye development| |peptidyl-lysine modification| |proteasome-mediated ubiquitin-dependent protein catabolic process| |proteasomal protein catabolic process| |eye development| |visual system development| |sensory system development| |nuclear speck| |ubiquitin-dependent protein catabolic process| |modification-dependent protein catabolic process| |modification-dependent macromolecule catabolic process| |sensory organ development| |proteolysis involved in cellular protein catabolic process| |cellular protein catabolic process| |transcription, DNA-templated| |nucleic acid-templated transcription| |RNA biosynthetic process| |positive regulation of transferase activity| |protein catabolic process| |protein ubiquitination| |protein localization to organelle| |protein modification by small protein conjugation| |cellular response to DNA damage stimulus| |neuron development| |peptidyl-amino acid modification| |negative regulation of apoptotic process| |anatomical structure formation involved in morphogenesis| |cellular macromolecule catabolic process| |negative regulation of programmed cell death| |apoptotic process| |animal organ morphogenesis| |regulation of transferase activity| |protein modification by small protein conjugation or removal| |negative regulation of cell death| |neuron differentiation| |macromolecule catabolic process| |programmed cell death| |organonitrogen compound catabolic process| |cell death| |nucleobase-containing compound biosynthetic process| |heterocycle biosynthetic process| |aromatic compound biosynthetic process| |positive regulation of protein modification process| |proteolysis| |organic cyclic compound biosynthetic process| |positive regulation of catalytic activity| |DNA binding| |generation of neurons| |regulation of apoptotic process| |positive regulation of transcription, DNA-templated| |regulation of programmed cell death| |cellular protein localization| |cellular macromolecule localization| |positive regulation of cellular protein metabolic process| |regulation of cell population proliferation| |neurogenesis| |cellular nitrogen compound biosynthetic process| |positive regulation of nucleic acid-templated transcription| |positive regulation of RNA biosynthetic process| |cell development| |RNA metabolic process| |regulation of cell death| |intracellular signal transduction| |cellular response to stress| |positive regulation of protein metabolic process| |cellular macromolecule biosynthetic process| |positive regulation of RNA metabolic process| |macromolecule biosynthetic process| |organic substance catabolic process| |positive regulation of molecular function| |cellular catabolic process| |regulation of protein modification process| |positive regulation of nucleobase-containing compound metabolic process| |positive regulation of macromolecule biosynthetic process| |positive regulation of cellular biosynthetic process| |positive regulation of gene expression| |gene expression| |positive regulation of biosynthetic process| \\ === CRISPR Data === No hits were found. ^Gene^Correlation^ |[[:human genes:h:hgc6.3|HGC6.3]]|0.465| 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**: 13364 * **Expression level (log2 read counts)**: 5.67 {{:chemogenomics:nalm6 dist.png?nolink |}}