|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.
|Human CPA2 ORF mammalian expression plasmid, C-GFPSpark tag||HG10499-ACG|
|Human CPA2 ORF mammalian expression plasmid, C-OFPSpark / RFP tag||HG10499-ACR|
|Human CPA2 ORF mammalian expression plasmid, C-Flag tag||HG10499-CF|
|Human CPA2 ORF mammalian expression plasmid, C-His tag||HG10499-CH|
|Human CPA2 ORF mammalian expression plasmid, C-Myc tag||HG10499-CM|
|Human CPA2 ORF mammalian expression plasmid, C-HA tag||HG10499-CY|
|Human CPA2 Gene cDNA clone plasmid||HG10499-M|
|Human CPA2 ORF mammalian expression plasmid, N-Flag tag||HG10499-NF|
|Human CPA2 ORF mammalian expression plasmid, N-His tag||HG10499-NH|
|Human CPA2 ORF mammalian expression plasmid, N-Myc tag||HG10499-NM|
|Human CPA2 ORF mammalian expression plasmid, N-HA tag||HG10499-NY|
|Human CPA2 natural ORF mammalian expression plasmid||HG10499-UT|
|Learn more about expression Vectors|
Human Carboxypeptidase A2 ( CPA2 ) is a secreted pancreatic procarboxy -peptidase, and cleaves the C-terminal amide or ester bond of peptides that have a free C-terminal carboxyl group. The hydrolytic action of CPA2 was identified with a preference towards long substrates with aromatic amino acids in their C-terminal end, particularly tryptophan. CPA2 comprises a signal peptide, a pro region and a mature chain, and can be activated after cleavage of the pro peptide. Three different forms of human pancreatic procarboxypeptidase A have been isolated, and the A1 and A2 forms are always secreted as monomeric proteins with different biochemical properties.