SKU: 70779348242

Mouse Anti-Human CD172a (SIRPα) Antibody (S-4039)

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Description

Mouse Anti-Human CD172a (SIRPα) Antibody (S-4039)Product Specification Host Mouse Antigen CD172a (SIRP) Synonyms Tyrosine protein phosphatase non receptor type substrate 1; SHP substrate 1; SHPS 1; Brain Ig like molecule with tyrosine based activation motifs (Bit); CD172 antigen like family member A; Inhibitory receptor SHPS 1; Macrophage fusion receptor; MyD 1 antigen; BIT; MFR; MYD1; PTPNS1; SHPS1; SIRP; SIRPA Location Membrane Accession P78324 Clone Number S 4039 Antibody Type Mouse mAb Isotype

Product Specification


Host Mouse
Antigen CD172a (SIRPα)
Synonyms Tyrosine-protein phosphatase non-receptor type substrate 1; SHP substrate 1; SHPS-1; Brain Ig-like molecule with tyrosine-based activation motifs (Bit); CD172 antigen-like family member A; Inhibitory receptor SHPS-1; Macrophage fusion receptor; MyD-1 antigen; BIT; MFR; MYD1; PTPNS1; SHPS1; SIRP; SIRPA
Location Membrane
Accession P78324
Clone Number S-4039
Antibody Type Mouse mAb
Isotype IgG2a,k
Application FCM
Reactivity Hu
Positive Sample human peripheral blood leukocytes
Purification Protein A
Concentration 2 mg/ml
Conjugation Unconjugated
Physical Appearance Liquid
Storage Buffer

PBS pH7.4

Stability & Storage

12 months from date of receipt / reconstitution, 2 to 8 °C as supplied

Dilution


application dilution species
FCM 1:200 Hu

Background

Signal-regulatory protein alpha (SIRPα, also known as CD172a or SHPS-1) is a type I transmembrane glycoprotein of the immunoglobulin superfamily, prominently expressed on myeloid cells, neurons, and stem cells, that functions as an inhibitory receptor by binding to the broadly expressed ligand CD47 (the “don’t eat me” signal) to negatively regulate innate immune effector functions such as macrophage phagocytosis of healthy host cells; upon CD47 engagement, phosphorylation of its cytoplasmic immunoreceptor tyrosine-based inhibitory motifs (ITIMs) recruits phosphatases like SHP-1 and SHP-2, thereby blocking actin cytoskeleton remodeling required for phagocytic activity, while structural studies have revealed its extracellular region contains three Ig-like domains (one V-set and two C1-set) and the interaction surface resembles antigen-receptor binding; in cancer, tumor cells exploit this CD47-SIRPα axis as an innate immune checkpoint to evade phagocytosis, making SIRPα a promising therapeutic target, especially in combination with anti-PD-1/PD-L1 therapies .

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SKU: 70779348242

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elizabeth a.
Alexandria, US
★★★★★ 5
Great shoe.
Size: 11.5, Color: Navy
Perfect fit. Stylish comfortable.
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Reviewed in the United States on May 2, 2026
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phala riffel
Boise, US
★★★★★ 5
Comfortable shoes
Size: 10.5, Color: Black
Fit well Look great Get compliments all the time
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Reviewed in the United States on April 3, 2026
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Larry
Omaha, US
★★★★★ 5
Good value for the money.
Size: 9.5 Wide, Color: Beige
Comfortable right out of the box. Great style and well made. The more you wear the softer they get but maintain their overall appearance.
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Reviewed in the United States on May 25, 2026
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Amazon Customer
Alexandria, US
★★★★★ 5
Very good quality for a reasonable price.
Size: 10, Color: Grey
Very good quality, very soft, very comfortable, look amazing, I’m very happy.
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Reviewed in the United States on May 23, 2026
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Mike L.
Cuba, US
★★★★★ 4
Comfortable fit for slip-in fabric shoes
Size: 14, Color: Black/Black
My first experience with Marc Joseph. I typically purchase dress and casual work shoes from Florsheim and occasionally Rockport. I'm giving these four stars because the initial fit and feel appear solid. Depending on the shoe brand I wear a size 14 or 15. My feet are slightly wide but I don't alway need wide fit. These size 14 fit well with wide enough toe box. I've tried slip in shoes before and they just don't feel right. These somehow work and there is no heel slip. My only reservation is the high lip on the heel for slip-in and hope they dont catch pant hems. I gave 4 stars because I'll have to determine durability. Granted they are a light fabric shoe with a soft rubber tread. I'd like them to last for at least 6 months..and use them for business casual work wear during warm weather.
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Reviewed in the United States on May 19, 2026

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