TotalSeq™-D0408 anti-human CD172a (SIRPα) Antibody

Pricing & Availability
15-414 (See other available formats)
Regulatory Status
Other Names
BIT, MFR, P84, MYD-1, SHPS1, PTPNS1, CD172 antigen-like family member A
Mouse IgG2a, κ
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372115 10 µg £253
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CD172a, also known as signal-regulatory protein α (SIRPα), is a 85-90 kD, type I transmembrane protein with one V-set Ig-like and two C-set Ig-like domains in the extracellular portion, and two ITIM motifs and a proline-rich region in the cytoplasmic tail. SIRPα is involved in the negative regulation of receptor tyrosine kinase-coupled signaling; the phospho-tyrosine residues of this protein recruit SH2 domain-containing tyrosine phosphatases (PTP), and serve as substrates of PTPs. CD172a is primarily expressed on monocytes/macrophages, granulocytes, dendritic cells, neurons and by cardiomyocytes derived from human pluripotent stem cells. The ligands of CD172a are CD47, SP-A, and SP-D.

Product Details
Technical Data Sheet (pdf)

Product Details

Verified Reactivity
Antibody Type
Host Species
KG1a cells.
Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide and 1 mM EDTA
The antibody was purified by chromatography and conjugated with TotalSeq™-D oligomer under optimal conditions.
0.5 mg/mL
Storage & Handling
The antibody solution should be stored undiluted between 2°C and 8°C. Do not freeze.

PG - Quality tested

Recommended Usage

Each lot of this antibody is quality control tested by immunofluorescent staining with flow cytometric analysis and the oligomer sequence is confirmed by sequencing. TotalSeq™-D antibodies are compatible with Mission Bio’s Tapestri Single-Cell Sequencing Platform for simultaneous detection of DNA and Protein.

To maximize performance, it is strongly recommended that the reagent be titrated for each application, and that you centrifuge the antibody dilution before adding to the cells at 14,000xg at 2 - 8°C for 10 minutes. Carefully pipette out the liquid avoiding the bottom of the tube and add to the cell suspension. For Proteogenomics analysis, the suggested starting amount of this reagent for titration is ≤ 1.0 µg per million cells in 100 µL volume. Refer to the corresponding TotalSeq™ protocol for specific staining instructions.

Buyer is solely responsible for determining whether Buyer has all intellectual property rights that are necessary for Buyer's intended uses of the BioLegend TotalSeq™ products. For example, for any technology platform Buyer uses with TotalSeq™, it is Buyer's sole responsibility to determine whether it has all necessary third party intellectual property rights to use that platform and TotalSeq™ with that platform.
Additional Product Notes

TotalSeq™-D reagents are designed to profile protein expression at single cell level. The Mission Bio Tapestri platform and sequencer (e.g. Illumina analyzers) are required. Please contact technical support for more information, or visit

The barcode flanking sequences are CGAGATGACTACGCTACTCATGG (PCR handle), and GAGCCGATCTAGTATCTCAGT*C*G (capture sequence). * indicates a phosphorothioated bond, to prevent nuclease degradation.

View more applications data for this product in our Application Technical Notes.

Application References

(PubMed link indicates BioLegend citation)
  1. Majdic O, et al. 1981. Blood. 58:1127.
AB_2941543 (BioLegend Cat. No. 372115)

Antigen Details

Type I transmembrane protein, 85-90 kD, one V-set Ig-like and two C-set Ig-like domains in the extracellular portion, two ITIM motifs and a proline-rich region in the cytoplasmic tail.

Monocytes, macrophages, granulocytes, dendritic cells, neurons and by cardiomyocytes derived from human pluripotent stem cells.

Negative regulation of receptor tyrosine kinase-coupled signaling, mediates macrophage multinucleation, involved in neuronal survival.
CD47, SP-A, and SP-D.
Cell Type
Dendritic cells, Granulocytes, Macrophages, Monocytes, Neurons
Biology Area
Cell Biology, Immunology, Neuroscience Cell Markers
Molecular Family
CD Molecules
Antigen References

1. Lv Z, et al. 2015. J. Immunol. 195:661.
2. Hatherley D, et al. 2014. J. Biol. Chem. 289:10024.
3. Zen K, et al. 2013. Nat. Commun. 4:2436.
4. Baba N, et al. 2013. J. Exp. Med. 210:1251.
5. Barclay AN, Brown MH. 2006. Nat. Rev. Immunol. 6:457.

Gene ID
140885 View all products for this Gene ID
View information about CD172alpha on

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Go To Top Version: 1    Revision Date: 04/19/2023

For research use only. Not for diagnostic use. Not for resale. BioLegend will not be held responsible for patent infringement or other violations that may occur with the use of our products.


*These products may be covered by one or more Limited Use Label Licenses (see the BioLegend Catalog or our website, BioLegend products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products, reverse engineer functionally similar materials, or to provide a service to third parties without written approval of BioLegend. By use of these products you accept the terms and conditions of all applicable Limited Use Label Licenses. Unless otherwise indicated, these products are for research use only and are not intended for human or animal diagnostic, therapeutic or commercial use.


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This data display is provided for general comparisons between formats.
Your actual data may vary due to variations in samples, target cells, instruments and their settings, staining conditions, and other factors.
If you need assistance with selecting the best format contact our expert technical support team.

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  • TotalSeq™-B0408 anti-human CD172a (SIRPα)

  • TotalSeq™-D0408 anti-human CD172a (SIRPα)


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