SKU: 75178385622

CD8 alpha&beta Heterodimer His Tag Protein, Human

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Description

CD8 alpha&beta Heterodimer His Tag Protein, HumanProduct Specification Species Human Synonyms CD8A&CD8B; CD8 alpha&beta Accession P01732 1P10966 1 Amino Acid Sequence Ser22 Asp182&Leu22 Pro170, with 6His tag at the C terminus Expression System HEK293 Molecular Weight 30 40 kDa, reducing conditions Purity 95% by SDS PAGE Endotoxin <1EU g Conjugation Unconjugated Tag His Tag Physical Appearance Lyophilized Powder Storage Buffer PBS, 5% Trehalose, pH7. 4. Reconstitution Always centrifuge tubes before

Product Specification


Species Human
Synonyms CD8A&CD8B; CD8 alpha&beta
Accession P01732-1、P10966-1
Amino Acid Sequence

Ser22-Asp182&Leu22-Pro170,  with 6His tag at the C-terminus

Expression System HEK293
Molecular Weight

30-40 kDa, reducing conditions

Purity >95% by SDS-PAGE
Endotoxin <1EU/μg
Conjugation Unconjugated
Tag His Tag
Physical Appearance Lyophilized Powder
Storage Buffer

PBS, 5% Trehalose, pH7.4.

Reconstitution
  • Always centrifuge tubes before opening.Do not mix by vortex or pipetting.
  • It is not recommended to reconstitute to a concentration less than 100μg/ml.
  • Dissolve the lyophilized protein in distilled water.
  • Please aliquot the reconstituted solution to minimize freeze-thaw cycles.


Stability & Storage

Lyophilized protein should be stored at ≤ -20°C, stable for one year after receipt.
Reconstituted protein solution can be stored at 2-8°C for 2-7 days.
Aliquots of reconstituted samples are stable at ≤ -20°C for 3 months.

Background

CD8 is a heterodimeric membrane glycoprotein on MHC class I-restricted T lymphocytes that cooperates with the alpha beta CD3 TCR in the recognition of MHC class I molecules presenting antigenic peptides. Cell surface CD8 molecules exist as either alpha/alpha homodimers or alpha/beta heterodimers, and most CD8+ T cells that undergo differentiation in the thymus express alpha/beta heterodimers. The CD8 b chain appears to be important for the thymic maturation of CD8+ T cells, because the number of mature CD8 single-positive T cells is decreased in CD8b gene-disrupted mice and most CD8+ T cells among gut intraepithelial lymphocytes in thymectomized mice express CD8 alpha/alpha homodimers.

Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
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  • To process your return/exchange, please contact us at [email protected]
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SKU: 75178385622

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4.8 ★★★★★
Based on 24 reviews
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Verified Purchase
Socal Viking
Fort Morgan, US
★★★★★ 5
Great shoe seems supportive
Size: 3.5 Big Kid, Color: Black/White
Bought the shoe because it was recommended by a podiatrist for young kids and I'm pleased with what seems like good support.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 15, 2025
A
Verified Purchase
Abby S.
Waukegan, US
★★★★★ 5
Good fit. Good support. Good for my new runner!
The quality definitely meets our expectations. The price point is pretty good; I can't swallow adult-sized prices for kid-sized shoes. Delivery was early...which my son really appreciated!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 24, 2024
N
Verified Purchase
Nick Fitz
New York, US
★★★★★ 1
Falling apart
Size: 5 Big Kid, Color: Teal/Periwinkle, Size: 5 Big Kid, Color: Teal/Periwinkle
I bought these two weeks ago for my daughter to train and use for a mini triathalon she is doing and the sole tread are already coming apart in several areas. Including the toe. Not worth the money
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
C
Verified Purchase
Christina
Fort Morgan, US
★★★★★ 3
Not True “Running” Shoes
Size: 3 Big Kid, Color: Plum/White
Okay every day shoes but not great for running. I’m a small adult, who happens to fit in kid sized shoes. While it has its perks of being cheaper, finding a good supportive shoe in youth size has its challenges. Youth shoes are not always built to last due to the fact kids grow out of them quickly. I had high hopes for these, and bought them on sale. Initially trying them on, they felt great. But after a few runs and miles on them they just weren’t cut out for running. I only ever do a mile here and there. After a month and maybe only 10 miles in them I was experiencing shin splints. So they’re only good for every day errands and I upgraded my running shoes to something else. They do fit true to size though! Was to clean. And very pretty purple.
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Reviewed in the United States on February 7, 2026
L
Verified Purchase
latoya favors
New York, US
★★★★★ 2
Get 2 sizes smaller! They run big for some reason
Size: 6 Big Kid, Color: Grey/Blue/Citron
This shoe runs super big for a kid sized shoe! Had to purchase 3 times before I got it right!!
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Reviewed in the United States on January 22, 2026

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