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Invitrogen
SIRP alpha Polyclonal Antibody
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FIGURE: 1 / 2
SIRP alpha Antibody (PA5-119416) in WB
Western blot analysis of SIRP alpha (CD172a) using SIRP alpha Polyclonal Antibody (Product # PA5-119416) at a dilution of 0.3 µg/mL. Lane 1: Porcine Cerebrum lysate; Lane 2: Rat Cerebrum lysate. Secondary antibody used is HRP-Goat anti-Rabbit IgG polyclonal antibody at a dilution of 0.2 µg/mL.
Product Details
PA5-119416
Product Specifications
Species Reactivity
Human
Host/Isotype
Rabbit
/ IgG
Class
Polyclonal
Type
Antibody
Immunogen
Recombinant protein Signal Regulatory Protein Alpha. The antigen corresponds to amino acid range 105-324 of the target protein.
Conjugate
Form
Liquid
Concentration
0.5 mg/mL
Purification
Antigen affinity chromatography, Protein A
Storage buffer
PBS, pH 7.4, with 50% glycerol
Contains
0.05% ProClin 300
Storage conditions
Store at 4°C short term. For long term storage, store at -20°C, avoiding freeze/thaw cycles.
Shipping conditions
Ambient (domestic); Wet ice (international)
RRID
Target Information
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.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
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Bioinformatics
Protein Aliases: Bit; Brain Ig-like molecule with tyrosine-based activation motifs; brain-immunoglobulin-like molecule with tyrosine-based activation motifs; CD172 alpha; CD172 antigen-like family member A; CD172a; Inhibitory receptor SHPS-1; Macrophage fusion receptor; MyD-1 antigen; p84; SHP substrate 1; signal-regulatory protein alpha; Signal-regulatory protein alpha-1; Signal-regulatory protein alpha-2; Signal-regulatory protein alpha-3; Sirp-alpha-1; Sirp-alpha-2; Sirp-alpha-3; SIRPalpha; SIRPalpha2; tyrosine phosphatase SHP substrate 1; Tyrosine-protein phosphatase non-receptor type substrate 1
Gene Aliases: BIT; CD172A; MFR; MYD-1; MYD1; P84; PTPNS1; SHPS1; SIRP; SIRPA
UniProt ID: (Human) P78324
Entrez Gene ID: (Human) 140885
Performance Guarantee
If an Invitrogen™ antibody doesn't perform as described on our website or datasheet,we'll replace the product at no cost to you, or provide you with a credit for a future purchase.*
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