|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 Neurexophilin-1 ORF mammalian expression plasmid, C-GFPSpark tag||RG80047-ACG|
|Rat Neurexophilin-1 ORF mammalian expression plasmid, C-OFPSpark / RFP tag||RG80047-ACR|
|Rat Neurexophilin-1 ORF mammalian expression plasmid, C-Flag tag||RG80047-CF|
|Rat Neurexophilin-1 ORF mammalian expression plasmid, C-His tag||RG80047-CH|
|Rat Neurexophilin-1 ORF mammalian expression plasmid, C-Myc tag||RG80047-CM|
|Rat Neurexophilin-1 ORF mammalian expression plasmid, C-HA tag||RG80047-CY|
|Rat Neurexophilin-1 Gene cDNA clone plasmid||RG80047-M|
|Rat Neurexophilin-1 ORF mammalian expression plasmid, N-Flag tag||RG80047-NF|
|Rat Neurexophilin-1 ORF mammalian expression plasmid, N-His tag||RG80047-NH|
|Rat Neurexophilin-1 ORF mammalian expression plasmid, N-Myc tag||RG80047-NM|
|Rat Neurexophilin-1 ORF mammalian expression plasmid, N-HA tag||RG80047-NY|
|Rat Neurexophilin-1 natural ORF mammalian expression plasmid||RG80047-UT|
|Learn more about expression Vectors|
Neurexophilin-1, or NXPH1 is a secreted glycoprotein, which belongs to the Neurexophilin family. The Neurexophilin family contain at least four genes and resembles a neuropeptide, suggesting a function as an endogenous ligand for alpha-neurexins. The mammalian brains contain four genes for neurexophilins the products of which share a common structure composed of five domains: an N-terminal signal peptide, a variable N-terminal domain, a highly conserved central domain that is N-glycosylated, a short linker region, and a conserved C-terminal domain that is cysteine-rich. Neurexophilin-1 constitutes a secreted cysteine-rich glycoprotein, forms a very tight complex with alpha neurexins, a group of proteins that promote adhesion between dendrites and axons. Neurexophilins 1 and 3 but not 4 (neurexophilin 2 is not expressed in rodents) bind to a single individual LNS domain, the second overall LNS domain in all three alpha-neurexins.