MB21D1 Recombinant Protein (OPCD05148)

Catalog No: OPCD05148

Product Info

• Predicted Species Reactivity: Mouse|Mus musculus
• Product Format: Freeze-dried Powder. PBS, pH7.4, containing 0.01% SKL, 5% Trehalose.
• Host: E.coli
• Conjugation: Unconjugated
• Application: Positive control|Sodium sodecyl sulfate - polyacrylamide gel electrophoresis|Western blot
• Additional Information: Endotoxin Level: < 1.0 EU per 1 ug (determined by the LAL method)
  Subcellular Location: Cytoplasm
  Isoelectric Point: 8.8
  Residues: Glu211-Lys395
• Reconstitution and Storage: 2°C to 8°C|-80°C
• Concentration: 400 ug/ml (prior to lyoph)
• Purity: > 95%
• Source: E.coli
• Tag: N-terminal His Tag

Target Info

• Gene Symbol: Cgas
• Gene Full Name: cyclic GMP-AMP synthase
• Alias Symbols: 2'3'-cGAMP synthase;cGAMP synthase;cyclic GMP-AMP synthase;E330016A19Rik;Mab-21 domain containing 1;mab-21 domain-containing protein 1;Mb21d1.
• NCBI Gene Id: 214763
• Protein Name: Cyclic GMP-AMP synthase
• Description of Target: Nucleotidyltransferase that catalyzes the formation of cyclic GMP-AMP (cGAMP) from ATP and GTP (PubMed:23258413, PubMed:23647843, PubMed:23722158, PubMed:26829768, PubMed:28214358). 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] (PubMed:23258413, PubMed:23647843, PubMed:23722158, PubMed:26829768, PubMed:28214358). 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 (PubMed:23722158, PubMed:28363908, PubMed:28314590). 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 (PubMed:23722158, PubMed:28363908, PubMed:28314590). Has antiviral activity by sensing the presence of dsDNA from DNA viruses in the cytoplasm (PubMed:23258413, PubMed:23647843, PubMed:23722158). Also acts as an innate immune sensor of infection by retroviruses by detecting the presence of reverse-transcribed DNA in the cytosol (PubMed:23929945). 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 (By similarity). Also detects the presence of DNA from bacteria (By similarity). 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 (PubMed:24077100). 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 (PubMed:26229117). In addition to antiviral activity, also involved in the response to cellular stresses, such as senescence, DNA damage or genome instability (PubMed:28738408, PubMed:28759028). 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 (PubMed:28759028). Also involved in the inflammatory response to genome instability and double-stranded DNA breaks: acts by localizing to micronuclei arising from genome instability (PubMed:28738408). 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 (PubMed:28738408).
• Uniprot ID: Q8C6L5
• Protein Accession #: NP_775562.2
• Nucleotide Accession #: NM_173386.5
• Protein Size (# AA): Glu211~Lys395
• Molecular Weight: 27kDa