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Description
Research Area
,Recombinant-Protein
Images & Validation
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| Application Notes |
|---|
Key Properties
−| Expression System | HEK293 Cells |
|---|---|
| Biological Origin | Human |
| Biological Activity | The cluster of differentiation (CD) system is commonly used as cell markers in Immunophenotyping. Different kinds of cells in the immune system can be identified through the surface CD molecules associating with the immune function of the cell. There are more than 320 CD unique clusters and subclusters have been identified. Some of the CD molecules serve as receptors or ligands important to the cell through initiating a signal cascade which then alter the behavior of the cell. Some CD proteins do not take part in cell signal process but have other functions such as cell adhesion. CD9 is a member of the transmembrane 4 superfamily, which is also known as the tetraspanin family. CD9 is a cell surface glycoprotein with 4 hydrophobic domains that are described as complex with integrins and other transmembrane 4 superfamily members. It is found expressed on the surface of the exosomes. The protein takes part in cellular signal transduction events and thus play a role in the regulation of cell development and activation, growth and motility. Besides, CD9 seems to be a key role in the egg-sperm fusion during the mammalian fertilization processes. CD9 is found on the membrane of the oocytes and also appears to intervene in maintaining the normal shape of oocyte microvilli. |
| Tag | C-His |
| Expression Region | A DNA sequence encoding the second extracellular domain (Ser 112-Ile 195) of human CD9 (NP_001760.1) was fused with a polyhistidine tag at the C-terminus and a signal peptide at the N-terminus. Predicted N terminal: Ser 112 |
| MW | 11 kDa (predicted); 11 kDa (reducing conditions) |
| Purity | 98.20% |
Storage & Handling
−| Storage | -20°C |
|---|---|
| Expiration Date | 6 months from date of receipt. |
| Disclaimer | For research use only |
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