Mouse Ephrin-A4/EFNA4 Gene ORF cDNA clone expression plasmid,C terminal Flag tag

Gene

Species

Mouse

NCBI Ref Seq

NM_007910.2

RefSeq ORF Size

621bp

Gene Synonym

Epl4, EFL-4, LERK-4, Efna4

Sequence Description

Identical with the Gene Bank Ref. ID sequence.

Description

Full length Clone DNA of Mouse Ephrin-A4 Gene ORF cDNA clone expression plasmid,C terminal Flag tag

Plasmid

Promoter

Enhanced CMV mammalian cell promoter

Vector

pCMV3-C-FLAG

Restriction Site

Protein Tag

Flag

Tag Sequence

GATTACAAGGATGACGACGATAAG

Sequencing Primers

Forward:T7(TAATACGACTCACTATAGGG) Reverse:BGH(TAGAAGGCACAGTCGAGG)

Quality Control

The plasmid is confirmed by full-length sequencing.

Flag Tag Information

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.

Screening

Antibiotic in E.coli

Kanamycin

Antibiotic in Mammalian cell

Hygromycin

Application

Stable or Transient mammalian expression

Storage & Shipping

Shipping

Each tube contains lyophilized plasmid.

Storage

The lyophilized plasmid can be stored at ambient temperature for three months.

Other Life Science vendor

Natural small molecules manufacturer | Biological Research Reagents Manufacturer

Background Information

EPH-related receptor tyrosine kinase ligand 4 (Ephrin-A4) also known as EFNA4, is a member of the Ephrin family. The Eph family receptor interacting proteins (ephrins) are a family of proteins that serve as the ligands of the Eph receptor, which compose the largest known subfamily of receptor protein-tyrosine kinases (RTKs). Eph/ephrin interactions are implicated in axon guidance, neural crest cell migration, establishment of segmental boundaries, and formation of angiogenic capillary plexi. Ephrin subclasses are further distinguished by their mode of attachment to the plasma membrane: ephrin-A ligands bind EphA receptors and are anchored to the plasma membrane via a glycosylphosphatidylinositol (GPI) linkage, whereas ephrin-B ligands bind EphB receptors and are anchored via a transmembrane domain. An exception is the EphA4 receptor, which binds both subclasses of ephrins. Ephrin-A4/EFNA4 functions as a cell surface GPI-bound ligand for Eph receptor, a family of receptor tyrosine kinases which are crucial for migration, repulsion and adhesion during neuronal, vascular and epithelial development.

References

Aasheim HC, et al. (2000) A splice variant of human ephrin-A4 encodes a soluble molecule that is secreted by activated human B lymphocytes. Blood. 95(1): 221-30.

Moss A, et al. (2005) Ephrin-A4 inhibits sensory neurite outgrowth and is regulated by neonatal skin wounding. Eur J Neurosci. 22(10): 2413-21.

Cerretti DP, et al. (1998) Characterization of the genes for mouse LERK-3/Ephrin-A3 (Epl3), mouse LERK-4/Ephrin-A4 (Epl4), and human LERK-6/Ephrin-A2 (EPLG6): conservation of intron/exon structure. Genomics. 47(1): 131-5.

Catalog Number:MGC551-CF