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Mensch VSIG4 Gene ORF cDNA clone expression plasmid, C-Myc tag

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Human VSIG4 Produktinformation zum cDNA-Klon
Gene_bank_ref_id:BC010525
cDNA-Größe:1200bp
cDNA-Beschreibung:Full length Clone DNA of Homo sapiens V-set and immunoglobulin domain containing 4 with C terminal Myc tag.
Synonyme für Gene:CRIg, Z39IG, VSIG4
Spezies:Human
Vektor:pCMV3-C-Myc
Plasmid:
Restriktionsschnittstelle:
Tag-Sequenz:Myc Tag Sequence: GAGCAGAAACTCATCTCAGAAGAGGATCTG
Sequenzbeschreibung:
Sequencing primers:T7(TAATACGACTCACTATAGGG) BGH(TAGAAGGCACAGTCGAGG)
Promoter:Enhanced CMV mammalian cell promoter
Application:Stable or Transient mammalian expression
Antibiotic in E.coli:Kanamycin
Antibiotic in mammalian cell:Hygromycin
Shipping_carrier:Each tube contains lyophilized plasmid.
Lagerung:The lyophilized plasmid can be stored at room temperature for three months.
Myc Tag Info

A myc tag is a polypeptide protein tag derived from the c-myc gene product that can be added to a protein using recombinant DNA technology. It can be used for affinity chromatography, then used to separate recombinant, overexpressed protein from wild type protein expressed by the host organism. It can also be used in the isolation of protein complexes with multiple subunits.

A myc tag can be used in many different assays that require recognition by an antibody. If there is no antibody against the studied protein, adding a myc-tag allows one to follow the protein with an antibody against the Myc epitope. Examples are cellular localization studies by immunofluorescence or detection by Western blotting.

The peptide sequence of the myc-tag is: N-EQKLISEEDL-C (1202 Da). It can be fused to the C-terminus and the N-terminus of a protein. It is advisable not to fuse the tag directly behind the signal peptide of a secretory protein, since it can interfere with translocation into the secretory pathway.

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Hintergrund

VSIG4 (V-set and immunoglobulin domain containing 4), also known as complement receptor of the immunoglobulin superfamily (CRIg) and Z39Ig, is a type I  transmembrane glycoprotein. It is a B7 family-related protein and an Ig superfamily member. In contrast to the B7 family members which contain two IgG domains, VSIG4 contains one complete V-type I g domain and a truncated C-type I g domain. VSIG4 is exclusively expressed on tissue resident macrophages and binds to multimers of C3b and iC3b that are covalently attached to particle surfaces. No VSIG4 expression appears to be present in T and B cells. VSIG4 functions as a negative regulator of T cell activation, and may be involved in the maintenance of peripheral T cell tolerance, and is also identified as a potent suppressor of established inflammation. Mouse VSIG4 is synthesized as a 280 amino acid precursor that contains a signal sequence, an V-type I g domain (aa 36-115), one potential N-linked glycosylation site, and a single transmembrane domain. The V-type I g domain of mouse VSIG4 shares 86% and 80% aa sequence identity with the V-type I g domains of rat and human VSIG4, respectively.

Referenzen
  • Vogt, L. et al., 2006, J Clin Invest.116: 2817-2826.
  • Helmy, K. et al., 2006, Cell. 124:915-927.
  • Wiesmann, C. et al., 2006, Nature. 444:217-220.
  • Zang,X. et al., 2006, J Clin Invest. 116: 2590-2593.
  • Katschke, KJ. et al., 2007, J. Exp. Med. 204:1319-1325.
  • He,JQ. et al., 2008, Mol Immunol. 45: 4041-4047.
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    Katalog: HG12163-CM
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