SIRPA Protein (AA 32-373) (His tag)
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- Target See all SIRPA Proteins
- SIRPA (Signal-Regulatory Protein alpha (SIRPA))
- Protein Type
- Recombinant
- Protein Characteristics
- AA 32-373
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Origin
- Mouse
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Source
- HEK-293 Cells
- Purification tag / Conjugate
- This SIRPA protein is labelled with His tag.
- Purpose
- Mouse SIRP alpha/CD172a Protein
- Sequence
- Lys32-Asn373
- Characteristics
- Recombinant Mouse SIRP alpha/CD172a Protein is expressed from HEK293 with His tag at the C-Terminus.It contains Lys32-Asn373.
- Purity
- > 95 % as determined by Tris-Bis PAGE,> 95 % as determined by HPLC
- Sterility
- 0.22 μm filtered
- Endotoxin Level
- Less than 1EU per μg by the LAL method.
- Biological Activity Comment
- The affinity constant of 1.33 μM as determined in SPR assay (Biacore T200). See testing image for detail.
- Top Product
- Discover our top product SIRPA Protein
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- Restrictions
- For Research Use only
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- Format
- Lyophilized
- Reconstitution
- Centrifuge the tube before opening. Reconstituting to a concentration more than 100 μg/mL is recommended. Dissolve the lyophilized protein in distilled water.
- Buffer
- Lyophilized from 0.22μm filtered solution in PBS ( pH 7.4). Normally 8 % trehalose is added as protectant before lyophilization.
- Storage
- -20 °C,-80 °C
- Storage Comment
- -20 to -80°C for 12 months as supplied from date of receipt.,-80°C for 3-6 months after reconstitution.,2-8°C for 2-7 days after reconstitution.,Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.
- Expiry Date
- 12 months
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- Target
- SIRPA (Signal-Regulatory Protein alpha (SIRPA))
- Alternative Name
- SIRP alpha (SIRPA Products)
- Background
- Signal regulatory protein α (SIRPα) is a regulatory membrane glycoprotein from SIRP family expressed mainly by myeloid cells and also by stem cells or neurons.SIRPα acts as inhibitory receptor and interacts with a broadly expressed transmembrane protein CD47 also called the "don´t eat me" signal.Cancer cells highly expressed CD47 that activate SIRP α and inhibit macrophage-mediated destruction.
- Molecular Weight
- 39 kDa. Due to glycosylation, the protein migrates to 65-85 kDa based on Tris-Bis PAGE result.
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