Catalog # PA1-30537
Quantity:
TESTED APPLICATIONS | DILUTION |
---|---|
Immunohistochemistry (Frozen) (IHC (F)) | Assay-dependent |
Western Blot (WB) | 1:1,000-1:2,000 |
PUBLISHED APPLICATIONS | |
---|---|
Western Blot (WB) | See 1 publications below |
Species reactivity | Human |
Published species | Human |
Host / Isotype | Rabbit / IgG |
Class | Polyclonal |
Type | Antibody |
Immunogen | Peptide from C terminus of human SIRPa1 |
Conjugate | Unconjugated |
Form | Liquid |
Concentration | 1 mg/mL |
Purification | Ion-exchange chromatography |
Storage buffer | PBS |
Contains | 0.02% sodium azide |
Storage conditions | Store at 4°C short term. For long term storage, store at -20°C, avoiding freeze/thaw cycles. |
RRID | AB_2188047 |
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.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
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
Molecular Function: transmembrane signal receptor
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