SKU: 8749934631

Biotinylated CD4/LEU3 His&Avi Tag Protein, Cynomolgus

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Description

Biotinylated CD4/LEU3 His&Avi Tag Protein, CynomolgusProduct Specification Species Cynomolgus Synonyms T4, IMD79, Leu 3, OKT4D, CD4mut Accession P79185 Amino Acid Sequence Lys26 Pro396, with C terminal His and Avitag Expression System HEK293 Molecular Weight 50 55kDa (Reducing) Purity 95% by SDS PAGE Endotoxin <1EU g Conjugation Biotin Tag Avi Tag, His Tag Physical Appearance Lyophilized Powder Storage Buffer PBS, pH7. 4. Reconstitution Reconstitute at 0. 1 1 mg ml according to the size in ultrapure

Product Specification


Species Cynomolgus
Synonyms T4, IMD79, Leu-3, OKT4D, CD4mut
Accession P79185
Amino Acid Sequence Lys26-Pro396, with C-terminal His and Avitag
Expression System HEK293
Molecular Weight

50-55kDa (Reducing)

Purity >95% by SDS-PAGE
Endotoxin <1EU/μg
Conjugation Biotin
Tag Avi Tag, His Tag
Physical Appearance Lyophilized Powder
Storage Buffer PBS, pH7.4.
Reconstitution Reconstitute at 0.1-1 mg/ml according to the size in ultrapure water after rapid centrifugation.
Stability & Storage · 12 months from date of receipt, lyophilized powder stored at -20 to -80℃.
· 3 months, -20 to -80℃ under sterile conditions after reconstitution.
· 1 week, 2 to 8℃ under sterile conditions after reconstitution.
· Please avoid repeated freeze-thaw cycles.
Reference

1. Gavin R Owen, (2016) Human CD4 Metastability Is a Function of the Allosteric Disulfide Bond in Domain 2. Biochemistry. 55(15):2227-37.

Background

The cluster of differentiation 4 receptor (CD4) is a 55kDa type I integral membrane glycoprotein which plays a substantial role during adaptive immune responses. In T-cells, CD4 mediates maturation, stabilizes T-cell receptor interactions with peptide-major histocompatibility complex class II (MHCII) complexes on antigen presenting cells, and mediates intracellular T-cell signalling.2 In addition to T-cells, CD4 has also been shown to be expressed on monocytes, monocyte-derived macrophages, Langerhans cells, B lymphocytes, dendritic cells, eosinophils, megakaryocytes and mast cells. The role of CD4 during immune function can also be diverted by the human immunodeficiency virus type 1 (HIV-1) envelope glycoprotein gp120 as the viral receptor utilizes CD4 as the primary receptor as well as the co-receptor CCR5/CXCR4 during the entry process.

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SKU: 8749934631

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A
Verified Purchase
Amazon Customer
Port Orchard, US
★★★★★ 5
Best toy for dogs
Color: Blue
My dog plays with this for hours!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026
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Chelsea H.
Natrona Heights, US
★★★★★ 4
I wouldn’t recommend this for strong chewers.
Color: Orange, Color: Orange
Is it fun? Sure. Was it easy to charge and set up? Yep. That being said, this toy kind of fell flat for me. It really didn’t do any big movements once charged that I expected it to, so that was a bummer. I initially got it for my dog, but my cats were more interested in this than my dog was. The battery does seem to last a long time and the motor is pretty quiet. I WOULD NOT recommend this toy for strong chewers as the material for this is a foam rubber and I don’t think it’s durable enough for strong chewers. While the material makes this ball extremely lightweight for more movement, a strong chewer would have this disintegrated in five minutes flat. My Dog is a super strong chewer. I don’t think I would feel comfortable leaving him unattended with this because I know he would destroy it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
C
Verified Purchase
Charlie
Charlottesville, US
★★★★★ 5
Interactive puppy fun
Color: Blue
Pups love this and I enjoy watching them have so much fun. Serious playtime followed by a well earned nap!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
N
Verified Purchase
Nala Nose Best 🐾
Grantham, US
★★★★★ 3
Well-designed and quiet, but didn’t keep my dog interested
Color: Blue
My dog was interested in this at first, but she would lose interest after a few minutes and move on. I do like that it’s quieter than the hard plastic ball toys, and the charge lasts well. The internal charging port that twists closed is also a nice design feature. That said, it will occasionally turn on by itself, which can be a little surprising. Overall, it has some nice features, but it just didn’t keep my dog engaged.
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Reviewed in the United States on April 30, 2026
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OhCaptainMyCaptain
Draper, US
★★★★★ 1
Good - for a few hours
Color: Blue, Color: Blue
Concept is fantastic. Dog loved it. Problem is that she figured out how to open it within two hours of play. The robot core, alas, did not survive. In the photo, you see a tooth went cleanly into the button and that was the end of the toy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026

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