|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 HAPLN1 ORF mammalian expression plasmid, C-GFPSpark tag||HG10323-ACG|
|Human HAPLN1 ORF mammalian expression plasmid, C-OFPSpark / RFP tag||HG10323-ACR|
|Human HAPLN1 ORF mammalian expression plasmid, C-Flag tag||HG10323-CF|
|Human HAPLN1 ORF mammalian expression plasmid, C-His tag||HG10323-CH|
|Human HAPLN1 ORF mammalian expression plasmid, C-Myc tag||HG10323-CM|
|Human HAPLN1 ORF mammalian expression plasmid, C-HA tag||HG10323-CY|
|Human HAPLN1 Gene cDNA clone plasmid||HG10323-M|
|Human HAPLN1 ORF mammalian expression plasmid, Flag tag||HG10323-M-F|
|Human HAPLN1 natural ORF mammalian expression plasmid||HG10323-M-N|
|Human HAPLN1 ORF mammalian expression plasmid, N-Flag tag||HG10323-NF|
|Human HAPLN1 ORF mammalian expression plasmid, N-His tag||HG10323-NH|
|Human HAPLN1 ORF mammalian expression plasmid, N-Myc tag||HG10323-NM|
|Human HAPLN1 ORF mammalian expression plasmid, N-HA tag||HG10323-NY|
|Human HAPLN1 natural ORF mammalian expression plasmid||HG10323-UT|
|Learn more about expression Vectors|
Hyaluronan (HA) is a high MW glycosaminoglycan significantly involved in the formation and stability of extracellular matrix via its association with specific HA-binding proteins. HAPLN1, also known as CRTL1 (Cartilage Link Protein 1, cLP ) and link protein, is a member of HA-binding protein (hyaladherins) family, and contains a common structural domain of about 100 amino acids that is termed a Link module with two α-helices and two antiparallel β-sheets. HAPLN1/CRTL1 stabilizes the interaction between hyaluronan (HA) and versican, two extracellular matrix components essential for cardiac development. Link module superfamily can be divided into three subgroups, and the HAPLN family are C domain-type proteins that have an extended structure with one N-terminal V-type Ig-like domain followed by two link modules. In cartilage, aggrecan forms - cLP stabilized aggregates with HA that provides the tissue with its load bearing properties. HAPLN1 is a component of follicular matrix, was shown to enhance cumulus-oocyte complex (COC) expansion in vitro. HAPLN1 may promote periovulatory granulosa cell survival, which would facilitate their differentiation into luteal cells.