|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 CA XII ORF mammalian expression plasmid, C-GFPSpark tag||HG10617-ACG|
|Human CA XII ORF mammalian expression plasmid, C-OFPSpark / RFP tag||HG10617-ACR|
|Human CA XII ORF mammalian expression plasmid, C-Flag tag||HG10617-CF|
|Human CA XII ORF mammalian expression plasmid, C-His tag||HG10617-CH|
|Human CA XII ORF mammalian expression plasmid, C-Myc tag||HG10617-CM|
|Human CA XII ORF mammalian expression plasmid, C-HA tag||HG10617-CY|
|Human CA XII Gene cDNA clone plasmid||HG10617-M|
|Human CA XII ORF mammalian expression plasmid, N-Flag tag||HG10617-NF|
|Human CA XII ORF mammalian expression plasmid, N-His tag||HG10617-NH|
|Human CA XII ORF mammalian expression plasmid, N-Myc tag||HG10617-NM|
|Human CA XII ORF mammalian expression plasmid, N-HA tag||HG10617-NY|
|Human CA XII natural ORF mammalian expression plasmid||HG10617-UT|
|Learn more about expression Vectors|
Carbonic anhydrases (CAs) are a large family of zinc metalloenzymes first discovered in 1933 that catalyze the reversible hydration of carbon dioxide. CAs participate in a variety of biological processes, including respiration, calcification, acid-base balance, bone resorption, and the formation of aqueous humor, cerebrospinal fluid, saliva, and gastric acid. CA12, also known as Car12 and carbonic anhydrase XII, is a type I membrane enzyme of an N-terminal extracellular catalytic domain, a membrane-spanning α-helix, and a small intracellular C-terminal domain. It is highly expressed in colon, kidney, prostate, intestine and activated lymphocytes and moderately expressed in pancreas, ovary, and testis. Overexpression of the CA12 is observed in certain human cancers and is used as a tumor marker. rmCA12 corresponds to the extracellular domain and has both carbonic anhydrase activity and esterase activity.