|Datasheet||Specific References||Reviews||Related Products||Protocols|
|Vector Type||Mammalian Expression Vector|
|Expression Method||Constiutive, Stable / Transient|
|Selection In Mammalian Cells||Hygromycin|
FLAG-tag, or FLAG octapeptide, is a polypeptide protein tag 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 FLAG-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 FLAG-tag to this protein allows one to follow the protein with an antibody against the FLAG sequence. Examples are cellular localization studies by immunofluorescence or detection by SDS PAGE protein electrophoresis.
The peptide sequence of the FLAG-tag from the N-terminus to the C-terminus is: DYKDDDDK (1012 Da). It can be used in conjunction with other affinity tags, for example a polyhistidine tag (His-tag), HA-tag or Myc-tag. It can be fused to the C-terminus or the N-terminus of a protein. Some commercially available antibodies (e.g., M1/4E11) recognize the epitope only when it is present at the N-terminus. However, other available antibodies (e.g., M2) are position-insensitive.
|Rat CTHRC1 ORF mammalian expression plasmid, C-GFPSpark tag||RG80712-ACG|
|Rat CTHRC1 ORF mammalian expression plasmid, C-OFPSpark / RFP tag||RG80712-ACR|
|Rat CTHRC1 ORF mammalian expression plasmid, C-Flag tag||RG80712-CF|
|Rat CTHRC1 ORF mammalian expression plasmid, C-His tag||RG80712-CH|
|Rat CTHRC1 ORF mammalian expression plasmid, C-Myc tag||RG80712-CM|
|Rat CTHRC1 ORF mammalian expression plasmid, C-HA tag||RG80712-CY|
|Rat CTHRC1 ORF mammalian expression plasmid, N-Flag tag||RG80712-NF|
|Rat CTHRC1 ORF mammalian expression plasmid, N-His tag||RG80712-NH|
|Rat CTHRC1 ORF mammalian expression plasmid, N-Myc tag||RG80712-NM|
|Rat CTHRC1 ORF mammalian expression plasmid, N-HA tag||RG80712-NY|
|Rat CTHRC1 Gene cDNA clone plasmid||RG80712-U|
|Rat CTHRC1 natural ORF mammalian expression plasmid||RG80712-UT|
|Learn more about expression Vectors|
Collagen triple helix repeat-containing protein 1, also known as Protein NMTC1, and CTHRC1, is a secreted protein that is glycosylated and highly conserved from lower chordates to mammals. CTHRC1 expression was not detectable in normal arteries. However, it is transiently expressed in the arterial wall in response to injury where it may contribute to vascular remodeling by limiting collagen matrix deposition and promoting cell migration. A short collagen motif with 12 Gly-X-Y repeats appears to be responsible for trimerization of the CTHRC1 protein and this renders the molecule susceptible to cleavage by collagenase. CTHRC1 overexpression caused a dramatic reduction in collagen type I mRNA and protein levels. Currently available data indicate that Cthrc1 expression in vascular cells regulates transforming growth factor beta responsiveness, thereby impacting transforming growth factor beta target genes, including collagens. Additionally, CTHRC1 increases bone mass as a positive regulator of osteoblastic bone formation and offers an anabolic approach for the treatment of osteoporosis.