|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 GNG13 ORF mammalian expression plasmid, C-GFPSpark tag||HG13173-ACG|
|Human GNG13 ORF mammalian expression plasmid, C-OFPSpark / RFP tag||HG13173-ACR|
|Human GNG13 ORF mammalian expression plasmid, C-Flag tag||HG13173-CF|
|Human GNG13 ORF mammalian expression plasmid, C-His tag||HG13173-CH|
|Human GNG13 ORF mammalian expression plasmid, C-Myc tag||HG13173-CM|
|Human GNG13 ORF mammalian expression plasmid, C-HA tag||HG13173-CY|
|Human GNG13 Gene cDNA clone plasmid||HG13173-G|
|Human GNG13 ORF mammalian expression plasmid, N-Flag tag||HG13173-NF|
|Human GNG13 ORF mammalian expression plasmid, N-His tag||HG13173-NH|
|Human GNG13 ORF mammalian expression plasmid, N-Myc tag||HG13173-NM|
|Human GNG13 ORF mammalian expression plasmid, N-HA tag||HG13173-NY|
|Human GNG13 natural ORF mammalian expression plasmid||HG13173-UT|
|Learn more about expression Vectors|
GNG13 is a subunit of heterotrimeric G proteins which consist of alpha, beta, and gamma subunits. Heterotrimeric G proteins are membrane bound GTPases that are linked to 7-TM receptors. They function as signal transducers for the 7-transmembrane-helix G protein-coupled receptors. They are involved as a modulator or transducer in various transmembrane signaling systems. Each G protein is composed of an alpha-, beta- and gamma-subunit and is bound to GDP in the 'off' state. Ligand-receptor binding results in detachment of the G protein, switching it to an 'on' state and permitting Galpha activation of second messenger signalling cascades. There are several types of Galpha proteins; in addition, some Gbetagamma subunits have active functions. Gbetagamma coupled to H1 receptors can activate PLA2 and Gbetagamma coupled to M1 receptors can activate KIR channels. The beta and gamma chains are required for the GTPase activity, for replacement of GDP by GTP, and for G protein-effector interaction. GNG13 is a gamma subunit that is expressed in taste, retinal, and neuronal tissues and plays a key role in taste transduction.