Introduction
Ephrin-B2 is a member of the ephrin (EPH) family, which, along with EPH-related receptors, constitute the largest subfamily of receptor protein-tyrosine kinases. These molecules play a crucial role in developmental processes, particularly in the nervous system and erythropoiesis. Ephrins are classified into two classes based on their structure and sequence: ephrin-A (EFNA) and ephrin-B (EFNB). EFNA ephrins are attached to the membrane through a glycosylphosphatidylinositol linkage, while EFNB ephrins are transmembrane proteins. Ephrin-B2 specifically interacts with the EPHB4 and EPHA3 receptors.
Description
Recombinant Mouse EFNB2, expressed in Sf9 Baculovirus cells, is a single polypeptide chain with a molecular weight of 23.4 kDa. This protein comprises 212 amino acids (residues 29-232). It features an 8 amino acid His-tag fused at the C-terminus. Purification is achieved using proprietary chromatographic techniques. Note: The molecular size observed on SDS-PAGE may range from approximately 28-40 kDa.
Physical Appearance
A clear, sterile-filtered solution.
Formulation
The EFNB2 solution is supplied at a concentration of 0.5 mg/ml in phosphate-buffered saline (pH 7.4) containing 10% glycerol.
Stability
For short-term storage (up to 2-4 weeks), the product can be stored at 4°C. For extended storage, it is recommended to freeze the product at -20°C. Adding a carrier protein such as HSA or BSA (0.1%) is advisable for long-term storage. Avoid repeated freeze-thaw cycles.
Purity
The purity of this product is greater than 90.0% as determined by SDS-PAGE analysis.
Synonyms
Ephrin-B2, ELF-2, EPH-related receptor tyrosine kinase ligand 5, LERK-5, HTK ligand, HTK-L, Elf2, Eplg5, Htkl, Lerk5, Efnb2, ELF-2, Epl5, Eplg5, Htk-L, Lerk5, NLERK-1, EFNB2.
Source
Sf9, Baculovirus cells.
Amino Acid Sequence
RSIVLEPIYW NSSNSKFLPG QGLVLYPQIG DKLDIICPKV DSKTVGQYEY YKVYMVDKDQ ADRCTIKKEN TPLLNCARPD QDVKFTIKFQ EFSPNLWGLE FQKNKDYYII STSNGSLEGL DNQEGGVCQT RAMKILMKVG QDASSAGSAR NHGPTRRPEL EAGTNGRSST TSPFVKPNPG SSTDGNSAGH SGNNLLGSEV ALFALEHHHH HH.