Antibody Details
Product Details
Reactivity Species
Mouse
Host Species
Rat
Immunogen
Mouse brain membrane protein
Product Concentration
0.2 mg/ml
Formulation
This Allophycocyanin (APC) conjugate is formulated in 0.01 M phosphate buffered saline (150 mM NaCl) PBS pH 7.4, 1% BSA and 0.09% sodium azide as a preservative.
Storage and Handling
This Allophycocyanin (APC) conjugate is stable when stored at 2-8°C. Do not freeze.
Country of Origin
USA
Shipping
Next Day 2-8°C
Excitation Laser
Red Laser (650 nm)
RRID
Applications and Recommended Usage?
Quality Tested by Leinco
FC The suggested concentration for this P84 antibody for staining cells in flow cytometry is ≤ 0.25 μg per 106 cells in a volume of 100 μl. Titration of the reagent is recommended for optimal performance for each application.
Additional Reported Applications For Relevant Conjugates ?
CyTOF®
IHC FF
IP
B
Each investigator should determine their own optimal working dilution for specific applications. See directions on lot specific datasheets, as information may periodically change.
Description
Specificity
Clone P84 recognizes an epitope on mouse CD172a.
Antigen Distribution
CD172a is expressed on monocytes, macrophages, dendritic cells, and neuronal cells.
Background
CD172a antibody, clone P84, recognizes CD172a, also known as single regulatory protein α (SIRPα) (signal regulatory protein alpha) or Src homology 2 domain-containing phosphatase substrate-1 (SHP-1), a type I transmembrane glycoprotein with three Ig-like extracellular domains and two cytoplasmic immunoreceptor tyrosine-based inhibition motifs (ITIMs)1. SIRPα is expressed predominantly in myeloid cells2 - including monocytes, macrophages, and dendritic cells (DCs) - and neuronal cells3. The extracellular ligand for SIRPα, CD47 (or integrin-associated protein [IAP])4, is expressed in most cell types5. In macrophages, ligation of SIRPα by CD47 inhibits macrophage phagocytosis of self cells6, 7. SIRPα also negatively regulates DC-mediated T cell activation and DC maturation8-10. CD47 is also upregulated on tumor cells, inhibiting the phagocytosis of tumor cells by macrophages11. Therapeutics targeting the CD47-SIRPα interaction, including antibodies and fusion proteins, are currently under preclinical and clinical study for various malignancies as a monotherapy or in combination with other therapeutics12.
Antigen Details
Protein
CD172a
Ligand/Receptor
CD47, SP-A, SP-D
Function
Negative regulation of several biological processes
PubMed
CD172a
NCBI Gene Bank ID
19261
UniProt.org
Information on Uniprot.org
Research Area
Cell Adhesion
.
Innate Immunity
.
Neuroscience
References & Citations
1. Fujioka, Y., et al. (1996) Mol. Cell. Biol. 16:6887
2. Adams, S., et al. (1998) J. Immunol. 161:1853
3. Chuang W, et al. (1990) Dev Biol. 137:219–232
4. Seiffert, M., et al. (1999) Blood 94:3633
5. Oldenborg P. A. (2013) ISRN Hematol. 2013:614619
6. Oldenborg, P. A., et al. (2000) Science 288:2051
7. Oldenborg, P. A., et al. (2001) J. Exp. Med. 193:855
8. Brooke, G. P., et al. (1998) Eur. J. Immunol. 28:1
9. Seiffert, M., et al. (2001) Blood 97:2741
10. Latour, S., et al. (2001) J. Immunol. 167:2547
11. Jaiswal S, et al. (2009) Cell. 138(2):271-85
12. Jalil AR, et al. (2020) Antib Ther. 3(2):80-94
Technical Protocols