Recombinant Human Signal-Regulatory Protein alpha-1/SIRPA/CD172a (C-6His-Avi) Biotinylated
Sizes: 20μg, 100μg
Catalogue Numbers: PKSH033867-20, PKSH033867-100
Citations, Manuals and MSDS Available upon request.
Abbreviation: SIRPA; CD172a
Target Symptom: Tyrosine-Protein Phosphatase Non-Receptor Type Substrate 1; SHP Substrate 1; SHPS-1; Brain Ig-Like Molecule with Tyrosine-Based Activation Motifs; Bit; CD172 Antigen-Like Family Member A; Inhibitory Feceptor SHPS-1; Macrophage Fusion Receptor; MyD-1 Antigen; Signal-Regulatory Protein Alpha-1; Sirp-Alpha-1; Signal-Regulatory Protein Alpha-2; Sirp-Alpha-2; Signal-Regulatory Protein Alpha-3; Sirp-Alpha-3; p84; CD172a; SIRPA; BIT; MFR; MYD1; PTPNS1; SHPS1; SIRP
Research Area: Signal Transduction; Cardiovascular; Neuroscience;
Conjugation: Biotinylated
Target Species: Human
Expression Host: HEK293 Cells
Application: ELISA
Fusion Tag: C-6His-Avi
UNIProt ID: P78324
Accession: P78324
Background: Signal Regulatory Protein α (SIRPα) is a monomeric approximately 90 kD type I transmembrane glycoprotein. The 504 amino acid human SIRPα contains two Ig-like C1-type domains and one Ig-like V-type domain. SIRPα can express in various tissues, mainly on brain and myeloid cells, including macrophages, neutrophils, dendritic and Langerhans cells. It also can detect in neurons, smooth muscle and endothelial cells. SIRPA is an immunoglobulin-like cell surface receptor for CD47. SIRPα acts as docking protein and induces translocation of PTPN6, PTPN11 and other binding partners from the cytosol to the plasma membrane. SIRPα shows adhesion of cerebellar neurons, neurite outgrowth and glial cell attachment. SIRPα engagement generally produces a negative regulatory signal; it may mediate negative regulation of phagocytosis, mast cell activation and dendritic cell activation.
Activity: Immobilized Human SIRPA-His-Avi at 10μg/ml (100 μl/well) can bind Human CD47-Fc. The ED50 of Human CD47-Fc is 898 ng/ml.
Sequence: Glu31-Arg370
Purity: > 95 % as determined by reducing SDS-PAGE.
Formulation: Lyophilized from a 0.2 μm filtered solution of 20mM PB, 150mM NaCl, pH 7.2.
Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization.
Please refer to the specific buffer information in the printed manual.
Reconstitution: Please refer to the printed manual for detailed information.
Endotoxin: < 1.0 EU per μg of the protein as determined by the LAL method.
Calculated MW: 39.9 kDa
Observed MW: 50-80 kDa
Storage: Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80℃. Reconstituted protein solution can be stored at 4-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at < -20℃ for 3 months.
Shipping: This product is provided as lyophilized powder which is shipped with ice packs.
Research Use Only