======= SAMHD1 ======= == Gene Information == * **Official Symbol**: SAMHD1 * **Official Name**: SAM and HD domain containing deoxynucleoside triphosphate triphosphohydrolase 1 * **Aliases and Previous Symbols**: N/A * **Entrez ID**: [[https://www.ncbi.nlm.nih.gov/gene/?term=25939|25939]] * **UniProt**: [[https://www.uniprot.org/uniprot/Q9Y3Z3|Q9Y3Z3]] * **Interactions**: [[https://thebiogrid.org/search.php?search=SAMHD1&organism=9606|BioGRID]] * **PubMed articles**: [[https://www.ncbi.nlm.nih.gov/pubmed/?term=gene%20SAMHD1|Open PubMed]] * **OMIM**: [[https://omim.org/entry/606754|Open OMIM]] == Function Summary == * **Entrez Summary**: This gene may play a role in regulation of the innate immune response. The encoded protein is upregulated in response to viral infection and may be involved in mediation of tumor necrosis factor-alpha proinflammatory responses. Mutations in this gene have been associated with Aicardi-Goutieres syndrome. [provided by RefSeq, Mar 2010]. * **UniProt Summary**: Host restriction nuclease involved in defense response to virus. Has dNTPase activity and reduces cellular dNTP levels to levels too low for retroviral reverse transcription to occur. Blocks early-stage virus replication in dendritic and other myeloid cells. Likewise, suppresses LINE-1 retrotransposon activity. May play a role in mediating proinflammatory responses to TNF-alpha signaling (PubMed:18546154, PubMed:19525956, PubMed:22056990, PubMed:24336198, PubMed:28229507). Has ribonuclease activity, acting on single-stranded RNA. This activity is essential for H1V-1 restriction (PubMed:25038827). {ECO:0000269|PubMed:18546154, ECO:0000269|PubMed:19525956, ECO:0000269|PubMed:22056990, ECO:0000269|PubMed:24336198, ECO:0000269|PubMed:25038827, ECO:0000269|PubMed:28229507}. |SAM 2| |HD| |SAM 1| |triphosphoric monoester hydrolase activity| |dGTP binding| |dGTPase activity| |DNA strand resection involved in replication fork processing| |dGTP catabolic process| |dATP catabolic process| |dGTP metabolic process| |purine deoxyribonucleoside triphosphate catabolic process| |dATP metabolic process| |purine deoxyribonucleotide catabolic process| |purine nucleoside triphosphate catabolic process| |deoxyribonucleoside triphosphate catabolic process| |purine deoxyribonucleoside triphosphate metabolic process| |tetraspanin-enriched microdomain| |purine deoxyribonucleotide metabolic process| |nucleoside triphosphate catabolic process| |negative regulation of type I interferon-mediated signaling pathway| |somatic hypermutation of immunoglobulin genes| |deoxyribonucleoside triphosphate metabolic process| |somatic diversification of immune receptors via somatic mutation| |deoxyribonucleotide catabolic process| |ribonuclease activity| |deoxyribose phosphate catabolic process| |2-deoxyribonucleotide metabolic process| |replication fork processing| |deoxyribose phosphate metabolic process| |regulation of type I interferon-mediated signaling pathway| |deoxyribonucleotide metabolic process| |somatic diversification of immunoglobulins| |DNA-dependent DNA replication maintenance of fidelity| |purine nucleotide catabolic process| |somatic diversification of immune receptors| |purine-containing compound catabolic process| |negative regulation of innate immune response| |site of double-strand break| |negative regulation of cytokine-mediated signaling pathway| |negative regulation of response to cytokine stimulus| |nucleotide catabolic process| |cellular response to type I interferon| |type I interferon signaling pathway| |purine nucleoside triphosphate metabolic process| |response to type I interferon| |nucleoside phosphate catabolic process| |negative regulation of response to biotic stimulus| |protein homotetramerization| |nucleoside triphosphate metabolic process| |double-strand break repair via homologous recombination| |recombinational repair| |nucleobase-containing small molecule biosynthetic process| |single-stranded DNA binding| |DNA-dependent DNA replication| |organophosphate catabolic process| |negative regulation of immune response| |protein tetramerization| |immunoglobulin production| |RNA phosphodiester bond hydrolysis| |regulation of cytokine-mediated signaling pathway| |regulation of response to cytokine stimulus| |production of molecular mediator of immune response| |double-strand break repair| |defense response to virus| |carbohydrate derivative catabolic process| |nucleic acid binding| |negative regulation of defense response| |DNA replication| |negative regulation of multi-organism process| |DNA recombination| |response to virus| |nucleic acid phosphodiester bond hydrolysis| |purine nucleotide metabolic process| |protein homooligomerization| |negative regulation of response to external stimulus| |purine-containing compound metabolic process| |nucleobase-containing compound catabolic process| |GTP binding| |heterocycle catabolic process| |cellular nitrogen compound catabolic process| |negative regulation of immune system process| |aromatic compound catabolic process| |nucleotide metabolic process| |nucleoside phosphate metabolic process| |regulation of innate immune response| |organic cyclic compound catabolic process| |DNA repair| |protein complex oligomerization| |regulation of response to biotic stimulus| |nucleobase-containing small molecule metabolic process| |small molecule biosynthetic process| |immune system development| |cytokine-mediated signaling pathway| |DNA metabolic process| |regulation of defense response| |innate immune response| |regulation of multi-organism process| |cellular response to DNA damage stimulus| |zinc ion binding| |organophosphate metabolic process| |defense response to other organism| |cellular response to cytokine stimulus| |carbohydrate derivative metabolic process| |organonitrogen compound catabolic process| |identical protein binding| |immune effector process| |regulation of response to external stimulus| |nucleobase-containing compound biosynthetic process| |response to cytokine| |regulation of immune response| |heterocycle biosynthetic process| |aromatic compound biosynthetic process| |negative regulation of signal transduction| |response to other organism| |organic cyclic compound biosynthetic process| |response to external biotic stimulus| |response to biotic stimulus| |defense response| |negative regulation of cell communication| |negative regulation of signaling| |RNA binding| |regulation of response to stress| |protein-containing complex assembly| |negative regulation of response to stimulus| |cellular nitrogen compound biosynthetic process| |regulation of immune system process| |RNA metabolic process| |cellular response to stress| |cellular macromolecule biosynthetic process| |small molecule metabolic process| |macromolecule biosynthetic process| |organic substance catabolic process| |cellular catabolic process| |protein-containing complex subunit organization| |immune response| \\ === CRISPR Data === ^Screen^Score^ |[[:results:exp426|FBS-Wisent 0.1 R07 exp426]]|-2.71| |[[:results:exp45|Docetaxel 0.002μM R01 exp45]]|1.73| |[[:results:exp360|Genistein 15μM R07 exp360]]|1.78| |[[:results:exp190|Vincristine 0.0005μM R04 exp190]]|1.89| |[[:results:exp440|Aphidicolin 0.4μM R08 exp440]]|2.01| |[[:results:exp460|BML-284 0.09μM R08 exp460]]|2.01| |[[:results:exp215|Colchicine 0.009μM R05 exp215]]|2.11| |[[:results:exp106|UM131593 0.2μM R03 exp106]]|2.11| |[[:results:exp231|Epothilone-B 0.0015μM R05 exp231]]|2.26| |[[:results:exp60|Vinblastine 0.002μM R01 exp60]]|2.58| |[[:results:exp184|Ixabepilone 0.004 to 0.005μM on day4 R04 exp184]]|2.95| |[[:results:exp228|Demecolcine 0.03μM R05 exp228]]|3.09| |[[:results:exp103|Taxol 0.004μM R03 exp103]]|4.5| ^Gene^Correlation^ |[[:human genes:a:atp1a1|ATP1A1]]|0.408| Global Fraction of Cell Lines Where Essential: 2/739 ^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|1/16| |kidney|0/21| |liver|0/20| |lung|1/75| |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**: 2513 * **Expression level (log2 read counts)**: 4.14 {{:chemogenomics:nalm6 dist.png?nolink |}}