SIRP alpha Polyclonal Antibody, Invitrogen™

Rabbit Polyclonal Antibody

Supplier:  Thermo Scientific PA529544

Catalog No. PIPA529544

Description

Recommended positive controls: HL-60, NIH-3T3. Store product as a concentrated solution. Centrifuge briefly prior to opening the vial.

SIRP alpha (CD172a, signal-regulatory protein alpha) is a receptor-type transmembrane glycoprotein expressed on cells of myeloid origin, including granulocytes, dendritic cells (DCs), macrophages, mast cells and hematopoietic stem cells. SIRP alpha acts as a substrate for several activated tyrosine kinases, including EGFR, PDGFR, src and insulin receptor and is involved in the negative regulation of receptor tyrosine kinase-coupled signaling pathways. The ligand binding of SIRP alpha to integrin-associated protein CD47 results in tyrosine kinase phosphorylation of immunoreceptor tyrosine-based inhibitory motifs (ITIMs) within the cytoplasmic region of SIRP alpha, which mediates the recruitment and activation of the tyrosine phosphatases SHP-1 and SHP-2. Ligation of SIRP alpha with CD47 has been demonstrated in several regulatory processes, including the inhibition of host cell phagocytosis by macrophages and the bi-directional activation of T cells and DCs. SIRP alpha has regulatory effects on cellular responses induced by serum, growth factors, insulin, oncogenes, growth hormones and cell adhesion, and plays a general role in different physiological and pathological processes. Cancer cells highly express CD47, which activates SIRP alpha and inhibits macrophage-mediated destruction of cancerous cell growth.

Specifications

• Antigen: SIRP alpha
• Classification: Polyclonal
• Conjugate: Unconjugated
• Gene: SIRPA
• Gene Alias: AI835480; Bit; brain Ig-like molecule with tyrosine-based activation motifs; Brain immunoglobulin like protein with tyrosine - based activation motifs; brain immunological-like with tyrosine-based motifs; brain-immunoglobulin-like molecule with tyrosine-based activation motifs; CD172; CD172 alpha; CD172 antigen-like family member A; CD172A; Inhibitory receptor SHPS-1; macrophage fusion receptor; Macrophage membrane protein MFP150; MFR; mSIRP-alpha1; Myd1; MYD-1; myD-1 antigen; p84; Protein tyrosine phosphatase non-receptor type substrate 1 (SHP substrate 1); protein tyrosine phosphatase, non-receptor type substrate 1; Protein tyrosine phosphatase, non-receptor type substrate 1 (SHP substrate 1); Ptpns1; SHP substrate 1; SHP-1; SHPS1; SHPS-1; signal regulatory protein alpha; signal-regulatory protein alpha; signal-regulatory protein alpha-1; Signal-regulatory protein alpha-2; Signal-regulatory protein alpha-3; SIRP; Sirpa; SIRPalpha; Sirp-alpha-1; SIRPalpha2; Sirp-alpha-2; Sirp-alpha-3; swc3; swine workshop cluster 3 antigen; swine workshop cluster 3 antigen precursor; tyrosine phosphatase SHP substrate 1; tyrosine-protein phosphatase non-receptor type substrate 1
• Host Species: Rabbit
• Purification Method: Antigen affinity chromatography
• Regulatory Status: RUO
• Gene ID (Entrez): 140885, 19261
• Content And Storage: Store at 4°C short term. For long term storage, store at -20°C, avoiding freeze/thaw cycles.
• Form: Liquid

• Applications: Immunocytochemistry, Immunohistochemistry (Paraffin), Western Blot
• Concentration: 0.24 mg/mL
• Formulation: PBS with 1% BSA, 20% glycerol and 0.025% ProClin 300; pH 7
• Gene Accession No.: P78324, P97797
• Gene Symbols: SIRPA
• Immunogen: Recombinant fragment corresponding to a region within amino acids 84 and 356 of Human SIRP alpha
• Quantity: 100 μL
• Primary or Secondary: Primary
• Target Species: Human, Mouse
• Product Type: Antibody
• Isotype: IgG

Safety and Handling

WARNING: Cancer - www.P65Warnings.ca.gov