SKU: 13967097807

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: 13967097807

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dennis dolinsky
Chelsea, US
★★★★★ 5
Great fit, great looking
Size: 11, Color: Red
Great looking, great fit, 5 Stars
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
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TojoAkuma
Phoenix, US
★★★★★ 5
Great pair of shoes
Size: 10, Color: Burgundy
I was a bit concerned that these shoes would be a bit large because I normally wear a size 9 1/2 and these are a size 10. But they fit perfectly. They are very light and comfortable. 👍
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Reviewed in the United States on March 10, 2026
B
Verified Purchase
Book Lover
Lake Worth, US
★★★★★ 5
My son likes them
Size: 10, Color: A Black
Basic black sneakers that are breathable and my son says are very comfortable in the summer. My 15 year old has reached a time where he gets really sweaty feet and dislikes that so I bought him these breathable shoes and he says it’s a lot better having airflow throughout his shoe and he can still run and do sporty things in them staying comfortable. Very supportive, easy to put on and fit okay although I would recommend sizing up a half size although they fit him okay there’s not much wiggle room his foot is almost at the edge and I bought his normal size. Overall cheap, supportive, comfy and worth the price.
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Reviewed in the United States on April 22, 2026
R
Verified Purchase
Reichel Family
West Palm Beach, US
★★★★★ 5
Super breathable, low-cost footwear
Size: 11, Color: A Black
Comfortable, super breathable, very light-weight. With this pricepoint, an easy purchase for a hot trip to Florida theme parks (despite them being black, they were still very cool compared to other sneakers). Adequate traction for rainy days. Extremely flexible - would likely be good for jogging as well. Had them for a few months now and wear them at least a couple times a week, no durability issues yet, they're still in fine shape.
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Reviewed in the United States on April 16, 2026
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R
Draper, US
★★★★★ 4
OK shoes for the price.
I wasn't sure about these shoes. They look flimsy and thin, but they are actually pretty comfortable. I wouldn't say these are great for outdoor running or anything, but I wear them around the house and took them on a cruise, and, surprisingly, I walked more in them than in my normal sneakers. They fit fine and are easy to slip on. They are easy to clean, just rinse off. Breathable. They aren't the most attractive shoes I own, but they pass. Would I get them again? Probably. We will see how long they last.
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Reviewed in the United States on May 30, 2026

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