SKU: 26904852758

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

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Description

Biotin 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; CD172a; BIT; MFR; MYD1; PTPNS1; SHPS1; SIRP; SIRPA Location Membrane Accession P78324 Clone Number S 4039 Antibody Type Mouse mAb

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; CD172a; 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 0.2 mg/ml
Conjugation Biotin
Physical Appearance Liquid
Storage Buffer

PBS pH7.4, 0.03% Proclin 300

Stability & Storage

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

Dilution


application dilution species
FCM 1.25μl per million cells in 100μl volume 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: 26904852758

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4.4 ★★★★★
Based on 14 reviews
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K
Verified Purchase
Kimberly Watson
Birmingham, US
★★★★★ 5
Great purchase
Color: Storage Cover Black, Size: Rechargeable
I've had my Circle Joy Frother since May 11th, and I've have used it every day. It's the best frother I've ever ordered or owned. It's powerful, works great and it's rechargeable, no batteries to buy for this one. I'll buy this one again if or when it stops working. I'm very satisfied.
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Reviewed in the United States on May 28, 2026
M
Verified Purchase
Momma Cat
Massapequa, US
★★★★★ 5
Game Changer for Coffee Lovers
Color: Storage Cover Black, Size: Rechargeable
I purchased the Circle Joy Rechargeable frother mostly because of the price. The frothy-whipped cream is a treat on the weekends, and the last hand frother I purchased zapped out. WoW - this one is amazing! The last one I had was battery operated, and wasn't as fast as this one. I now use it everyday because it works so quickly. It comes with a "lid" for the blender part, so I can toss in my briefcase. Love that recharges quickly so its ready when I am. Great price, easy to use, looks sleek, and tiny enough to take with you. LOVE, FiVE Stars
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Reviewed in the United States on May 26, 2026
J
Verified Purchase
Janae Woods
Omaha, US
★★★★★ 4
Great for short term
Color: Storage Cover Black, Size: Rechargeable
Works great when it works.... But I've bought three this year and two of them just unexpectedly died with no logical reason. Giving up and trying a new brand for my protein coffee drinks. *Edit....after original review the seller offered a refund and apologized for the issues I had. Bumping up my rating for proactive customer service and trying to make things right.
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Reviewed in the United States on May 23, 2026
L
Verified Purchase
L
Los Angeles, US
★★★★★ 5
Great buy!
Color: Storage Cover Black, Size: Rechargeable
Great product. I'm glad I bought this to replace my old, cheap one that I got from Ikea. I like that it has double whisk as it does froth my liquids really well. I like the speed of it and it's easy to use and wash. The battery life is pretty long as well. I haven't charged it since I got it.
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Reviewed in the United States on June 4, 2026
B
Verified Purchase
Big Daddy
Lexington, US
★★★★★ 5
Pretty darn good frother...
Color: Storage Cover Black, Size: Rechargeable
This is a pretty darn good frother/whisk, which we use primarily for mixing Crystal Light and LMNT drinks. It holds a charge for a long time and it is easy to recharge with the USB-C port and cable. My only complaint is that you must hold the power button continuously while operating it which is challenging to do using tall cups. It would be much better if is was a two stage on-off switch and had a longer wand, which isn't as long as it could be. But the unit is lightweight, easy to use and very versatile. Overall, I would buy it again.
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Reviewed in the United States on April 15, 2026

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