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  4. Recombinant Mouse Cyclic GMP-AMP synthase (Cgas)

Recombinant Mouse Cyclic GMP-AMP synthase (Cgas)

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  • 中文名称：
    Recombinant Mouse Cyclic GMP-AMP synthase (Cgas)
  • 货号：
    CSB-EP5333MO
  • 规格：
    ￥2328
  • 图片：
    • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
  • 其他：

产品详情

  • 纯度：
    Greater than 85% as determined by SDS-PAGE.
  • 生物活性：
    Not Test
  • 基因名：
    Cgas
  • Uniprot No.：
    Q8C6L5
  • 别名：
    cGAMP synthase;cGAS;m-cGAS;Mab-21 domain-containing protein 1
  • 种属：
    Mus musculus (Mouse)
  • 蛋白长度：
    Full Length
  • 来源：
    E.coli
  • 分子量：
    65.1 kDa
  • 表达区域：
    1-507aa
  • 氨基酸序列
    MEDPRRRTTAPRAKKPSAKRAPTQPSRTRAHAESCGPQRGARSRRAERDGDTTEKPRAPGPRVHPARATELTKDAQPSAMDAAGATARPAVRVPQQQAILDPELPAVREPQPPADPEARKVVRGPSHRRGARSTGQPRAPRGSRKEPDKLKKVLDKLRLKRKDISEAAETVNKVVERLLRRMQKRESEFKGVEQLNTGSYYEHVKISAPNEFDVMFKLEVPRIELQEYYETGAFYLVKFKRIPRGNPLSHFLEGEVLSATKMLSKFRKIIKEEVKEIKDIDVSVEKEKPGSPAVTLLIRNPEEISVDIILALESKGSWPISTKEGLPIQGWLGTKVRTNLRREPFYLVPKNAKDGNSFQGETWRLSFSHTEKYILNNHGIEKTCCESSGAKCCRKECLKLMKYLLEQLKKEFQELDAFCSYHVKTAIFHMWTQDPQDSQWDPRNLSSCFDKLLAFFLECLRTEKLDHYFIPKFNLFSQELIDRKSKEFLSKKIEYERNNGFPIFDKL
    Note: The complete sequence including tag sequence, target protein sequence and linker sequence could be provided upon request.
  • 蛋白标签：
    C-terminal 6xHis-tagged
  • 产品提供形式：
    Liquid or Lyophilized powder
    Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
  • 缓冲液：
    If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
  • 复溶：
    We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.
  • 储存条件：
    Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
  • 保质期：
    The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
    Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
  • 货期：
    3-7 business days
  • 注意事项：
    Repeated freezing and thawing is not recommended. Store working aliquots at 4℃ for up to one week.
  • Datasheet & COA：
    Please contact us to get it.

产品评价

靶点详情

  • 功能：
    Nucleotidyltransferase that catalyzes the formation of cyclic GMP-AMP (cGAMP) from ATP and GTP and plays a key role in innate immunity. Catalysis involves both the formation of a 2',5' phosphodiester linkage at the GpA step and the formation of a 3',5' phosphodiester linkage at the ApG step, producing c[G(2',5')pA(3',5')p]. Acts as a key cytosolic DNA sensor, the presence of double-stranded DNA (dsDNA) in the cytoplasm being a danger signal that triggers the immune responses. Binds cytosolic DNA directly, leading to activation and synthesis of cGAMP, a second messenger that binds to and activates TMEM173/STING, thereby triggering type-I interferon production. Preferentially binds long dsDNA (around 45 bp) and forms ladder-like networks that function cooperatively to stabilize individual cGAS-dsDNA complexes. Has antiviral activity by sensing the presence of dsDNA from DNA viruses in the cytoplasm. Also acts as an innate immune sensor of infection by retroviruses by detecting the presence of reverse-transcribed DNA in the cytosol. Detection of retroviral reverse-transcribed DNA in the cytosol may be indirect and be mediated via interaction with PQBP1, which directly binds reverse-transcribed retroviral DNA. Also detects the presence of DNA from bacteria. cGAMP can be transferred from producing cells to neighboring cells through gap junctions, leading to promote TMEM173/STING activation and convey immune response to connecting cells. cGAMP can also be transferred between cells by virtue of packaging within viral particles contributing to IFN-induction in newly infected cells in a cGAS-independent but TMEM173/STING-dependent manner. In addition to antiviral activity, also involved in the response to cellular stresses, such as senescence, DNA damage or genome instability. Acts as a regulator of cellular senescence by binding to cytosolic chromatin fragments that are present in senescent cells, leading to trigger type-I interferon production via TMEM173/STING and promote cellular senescence. Also involved in the inflammatory response to genome instability and double-stranded DNA breaks: acts by localizing to micronuclei arising from genome instability. Micronuclei, which as frequently found in cancer cells, consist of chromatin surrounded by its own nuclear membrane: following breakdown of the micronuclear envelope, a process associated with chromothripsis, CGAS binds self-DNA exposed to the cytosol, leading to cGAMP synthesis and subsequent activation of TMEM173/STING and type-I interferon production. Acts as a suppressor of DNA repair in response to DNA damage: translocates to the nucleus following dephosphorylation at Tyr-201 and inhibits homologous recombination repair by interacting with PARP1, the CGAS-PARP1 interaction leading to impede the formation of the PARP1-TIMELESS complex.
  • 基因功能参考文献：
    1. cGAS and STING mediated detection of pneumococcal DNA in mouse macrophages to primarily stimulate type I interferon responses. PMID: 29263110
    2. cGMP-AMP (cGAMP) synthase (cGAS), a cytosolic DNA sensor that activates innate immunity, is essential for cell senescence. Deletion of cGAS accelerated the spontaneous immortalization of embryonic fibroblasts. PMID: 28533362
    3. Results indicate that activation of the cGMP-AMP (cGAMP) synthase (cGAS) pathway is important for intrinsic antitumor immunity. PMID: 28137885
    4. results suggest a nucleation-cooperativity-based mechanism for sensitive detection of mitochondrial DNA and pathogen genomes, and identify HMGB/TFAM proteins as DNA-structuring host factors; they provide an explanation for the peculiar cGAS dimer structure and suggest that cGAS preferentially binds incomplete nucleoid-like structures or bent DNA PMID: 28902841
    5. miR-25/93 targets NCOA3, an epigenetic factor that maintains basal levels of cGAS expression, leading to repression of cGAS during hypoxia. This allows hypoxic tumour cells to escape immunological responses induced by damage-associated molecular pattern molecules, specifically the release of mitochondrial DNA. PMID: 28920955
    6. Cyclic GMP-AMP synthase (cGAS) recognizes cytosolic chromatin fragments in senescent cells. The activation of cGAS, in turn, triggers the production of SASP factors via stimulator of interferon genes (STING), thereby promoting paracrine senescence. PMID: 28759028
    7. the current study demonstrated that the DNA sensor cGAS is dynamically modified by SUMO PMID: 28095500
    8. Data suggest that the N terminus enhanced the activity of core-cyclic GMP-AMP synthase (cGAS) by facilitating formation of a monomeric complex of cGAS and DNA. PMID: 28214358
    9. cGAS role in the innate immune response and interferon-stimulated genes response pathway PMID: 26903602
    10. Cytosolic cGAS detects Mycobacterium tuberculosis DNA to induce Type I interferons and activate autophagy. PMID: 26048136
    11. cGAS is essential for IFNbeta induction in response to M. tuberculosis infection.cGAS is required for selective autophagy of M. tuberculosis. PMID: 26048137
    12. cGAS is an innate sensor of Mycobacterium tuberculosis.Mycobacterium tuberculosis differentially activates cGAS- and inflammasome-dependent intracellular immune responses through ESX-1. PMID: 26048138
    13. results demonstrate that cGAS activation causes the autoimmune diseases in Trex1(-/-) and DNaseII(-/-) mice and suggest that inhibition of cGAS may lead to prevention and treatment of some human autoimmune diseases caused by self-DNA PMID: 26371324
    14. Data show that cyclic GMP-AMP synthase (cGAS) is essential for all aspects of the autoimmune disease in 3' repair exonuclease Trex1 knockout mice. PMID: 26223655
    15. IFI16 and cGAS cooperate in a novel way to sense nuclear herpesviral DNA and initiate innate signaling PMID: 25831530
    16. cGAS and Ifi204 cooperate to produce type I IFNs in response to Francisella infection. PMID: 25710914
    17. our study not only provides a novel mechanism of modulating cGAS expression, but also adds another layer of regulation in DNA-triggered IFN-I production by induction of cGAS. PMID: 25609843
    18. knocking out the DNA sensor cyclic GMP-AMP synthase completely abrogates spontaneous induction of IFN-stimulated genes in TREX1-deficient cells. PMID: 24813208
    19. genetic ablation of murine cGAS reveals its requirement in the antiviral response to two DNA viruses, and an unappreciated contribution to the innate control of an RNA virus PMID: 24284630
    20. this study shows that cells from cGAS-deficient (cGas(-/-)) mice, including fibroblasts, macrophages, and dendritic cells, failed to produce type I interferons and other cytokines in response to DNA transfection or DNA virus infection. PMID: 23989956
    21. These results indicate that cGAS is an innate immune sensor of HIV and other retroviruses. PMID: 23929945
    22. Study shows that, upon dsDNA binding, cGAS is activated through conformational transitions, resulting in formation of a catalytically competent and accessible nucleotide-binding pocket for generation of c[G(2',5')pA(3',5')p]. PMID: 23647843
    23. cGAS first catalyses the synthesis of a linear 2'-5'-linked dinucleotide, which is then subject to cGAS-dependent cyclization in a second step through a 3'-5' phosphodiester linkage; this ring structure defines a novel class of second messenger molecules PMID: 23722158
    24. These results indicate that cGAS is a cytosolic DNA sensor that induces interferons by producing the second messenger cGAMP. PMID: 23258413

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  • 亚细胞定位：
    Cell membrane; Peripheral membrane protein. Cytoplasm, cytosol. Nucleus.
  • 蛋白家族：
    Mab-21 family
  • 数据库链接：

    KEGG: mmu:214763

    STRING: 10090.ENSMUSP00000063331

    UniGene: Mm.101559

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