SKU: 44467288756

Alexa Fluor® 488 Rat Anti-Mouse CD4 antibody (S-1259-5)

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Description

Alexa Fluor® 488 Rat Anti-Mouse CD4 antibody (S-1259-5)Product Specification Host Rat Antigen CD4 Synonyms T cell surface glycoprotein CD4; T cell differentiation antigen L3T4; T cell surface antigen T4 Leu 3 Immunogen Recombinant Protein Location Cell membrane Accession P06332 Clone Number S 1259 5 Antibody Type Rat mAb Isotype IgG1,k Conjugation Alexa Fluor 488 Physical Appearance Liquid Storage Buffer PBS, 25% Glycerol, 1% BSA, 0. 3% Proclin 300 Stability & Storage 12 months from date of receipt

Product Specification


Host Rat
Antigen CD4
Synonyms T-cell surface glycoprotein CD4; T-cell differentiation antigen L3T4; T-cell surface antigen T4/Leu-3
Immunogen Recombinant Protein
Location Cell membrane
Accession P06332
Clone Number S-1259-5
Antibody Type Rat mAb
Isotype IgG1,k
Conjugation Alexa Fluor® 488
Physical Appearance Liquid
Storage Buffer

PBS, 25% Glycerol, 1% BSA, 0.3% Proclin 300

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

Dilution


application dilution species
FCM 5 μl per million cells in 100μl volume

Background

CD4 is a glycoprotein that functions as a co-receptor for the T-cell receptor (TCR) and is primarily expressed on the surface of helper T cells, monocytes, macrophages, and dendritic cells. It is a member of the immunoglobulin superfamily, consisting of four immunoglobulin domains (D1 to D4) that interact with MHC class II molecules on antigen-presenting cells. This interaction, mediated by the D1 domain of CD4, ensures that T cells recognize antigens presented by MHC II. The cytoplasmic tail of CD4 contains motifs that recruit the tyrosine kinase Lck, which amplifies T cell activation signals. Additionally, CD4 is crucial in the immune response, as it helps activate CD4+ T helper cells, which in turn stimulate other immune cells to combat infections. However, CD4 is also the primary receptor for HIV, allowing the virus to enter host T cells and cause immunodeficiency.

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SKU: 44467288756

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4.0 ★★★★★
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K
Verified Purchase
Keith Granholm
Louisville, US
★★★★★ 5
Fits my Chevy 2021 Bolt Premier perfectly.
Style: BE-966 1-Pack
Installation was a breeze, fir nicely and the air in teh car now smells fresh and clean. The old filter has developed a musty smell so this new one is great. Had it replaced in under 3 minutes.
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Reviewed in the United States on May 18, 2026
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Punkizback
Belleville, US
★★★★★ 5
Fits perfectly for my 2017 VW Passat
Style: BE-373 1-Pack, Style: BE-373 1-Pack
Bought this for a fraction of the cost. An auto shop wanted to charge me $72.99 for a filter so I bought this Spearhead brand cabin filter and its the perfect size and its just as sturdy as the previous one the dealership had in the car. Not sure yet how the airflow is or if anything different as I have not driven in the car since it was replaced, but it appears to be a very high quality cabin filter for my car at a great price.
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Reviewed in the United States on May 25, 2026
S
Verified Purchase
SBJ
Omaha, US
★★★★★ 5
Good Quality Replacement for Lexus
Style: BE-285 1-Pack
Was a perfect fit for my 2016 Lexus NX200t. No tools required. Total of 5 minutes to install. Airflow is good after replacement and the activated charcoal seems to make a difference in reducing any smells from outside. Recommended.
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Reviewed in the United States on May 3, 2026
K
Verified Purchase
KK
Dallas, US
★★★★★ 5
Economical, easy to install, and does the job!
Style: BE-182 1-Pack
First, depending on your car model, replacing your cabin air filter is VERY easy. With that out of the way, the shop wanted to charge almost 65 dollars to replace my cabin air filter. Decided to just buy one and do it myself. The only downside of waiting is that the air inside the car is not as fresh/clean when you're running your air. Anyways, you can usually get these kinds of filters between 20-45 dollars from auto part shops depending on the brand and features. I've used this brand and filter for the past 3 replacements on my car and they last just as long and filter just as well from my experience. No issues installing, and does in fact do a good job of filtering outside odors. Highly recommended for the price!
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Reviewed in the United States on March 16, 2026
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Verified Purchase
Riggs
Lowell, US
★★★★★ 5
Fits my 2026 civic sport perfect!
Size: AF151
No issues, fitment is perfect. Great quality for an excellent price. Dealer wanted like $24 for a basic one. Nah I'm good I'll just go on Amazon and get it for $8. Took 30 seconds from start to finish can't get any easier.
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Reviewed in the United States on May 25, 2026

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