Recombinant Cotton Rat CD8 alpha Protein

Cat. No.: rp165076
AVAILABLE TO ORDER
GRADE & PURITY Animal Free ? Animal-free — produced without animal-derived components to reduce contamination risk. Use in biomanufacturing and culture avoiding animal-origin material. Carrier Free ? Carrier-free — supplied without added carrier protein/stabilizer. Use when carriers (e.g. BSA) would interfere with conjugation or sensitive assays. His Tag ? His tag grade — recombinant protein bearing a His tag for affinity purification/detection. Use to purify, immobilize, or detect the tagged protein. ≥90%(SDS-PAGE)
Expression System
HEK293
Accession #
Q8VH42
Protein Tag
C-His
Expression system
HEK293
Endotoxin Concentration
<0.1 EU/μg
Bioactivity
Testing in progress
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
10μg
rp165076-10μg
3
$271.90
50μg
rp165076-50μg
3
$805.90
100μg
rp165076-100μg
2
$1,199.90
1mg
rp165076-1mg
1-2 wks(?)
Item is derived from our semi-finished stock and is processed in 1-2 weeks.
$5,999.90
Enter a quantity for the sizes you want to add.
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Why this grade

Animal Free,Carrier Free,His-Tag,≥90%(SDS-PAGE) Animal Free,Carrier Free,His Tag for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at -20°C,Avoid repeated freezing and thawing Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Background
CD8 is a dimeric complex made up of two Ig superfamily members (1). The CD8 alpha chain is a type I transmembrane glycoprotein that can dimerize either with itself forming CD8 alpha alpha, or with a 30-35 kDa CD8 beta chain, forming CD8 alpha beta (2). CD8 alpha contains one V-type Ig-like domain in its extracellular region that binds to class I MHC molecules. CD8 alpha beta is a TCR co-receptor, while CD8 alpha alpha promotes T cell survival and differentiation (1, 3). The mature cotton rat CD8 alpha consists of a 159 amino acid (aa) extracellular domain (ECD), and runs at ~30 kDa under reduced condition. Within the ECD, cotton rat CD8 alpha shares 49%, 47%, and 54% amino acid sequence identity with human, mouse, and rat CD8 alpha, respectively.

Specifications

Product Name
Recombinant Cotton Rat CD8 alpha Protein
Synonyms
CD_antigen: CD8a | CD8 antigen, alpha polypeptide (p32) | CD8 | CD8a molecule | CD8A | Leu2 T-lymphocyte antigen | LEU2 | MAL | OKT8 T-cell antigen | p32 | T cell co-receptor | T8 T-cell antigen | T-cell antigen Leu2 | T-cell surface glycoprotein CD8 alph
Grade
Animal Free, Carrier Free, His Tag
Specifications & Purity
Animal Free, Carrier Free, His-Tag, ≥90%(SDS-PAGE)
Bioactivity
Testing in progress
Endotoxin Concentration
<0.1 EU/μg
Expression System
HEK293
Amino Acids
24-182 aa
Sequence
SKDFEMSPKKVVAHLGKEVRLTCEVWVSTSQGCSWLFLEHGSGVKPTFLIYLSGSRNERNNKIPSTKLSGKKEDKKYTLTLNNFAKEDEGYYFCSVTSNSVVYFSPLVSVFLPEKPTTPVPKPPTSVPTTAISRSLRPEACRPGAGTSVEKKGWDFDCDHHHHHH
Protein Tag
C-His
Accession #
Predicted molecular weight
18 kDa
SDS-PAGE
26-32 kDa under reducing conditions.
Molecule Type
Protein
Storage and Shipping
Reconstitution
Reconstitute in sterile water to a concentration of 0.1-0.5 mg/ml.
Storage
Store at -20°C,Avoid repeated freezing and thawing
Shipped In
Ice chest + Ice pads
Stability And Storage
Store at -20~-80℃ for more than 1 year. Upon delivery aliquot. Avoid freeze/thaw cycle.
Images

Recombinant Cotton Rat CD8 alpha Protein (rp165076) - SDS-PAGE
2 μg/lane of Recombinant Cotton Rat CD8 alpha Protein was resolved with SDS-PAGE under reducing (R) and non-reducing (N) conditions and visualized by Coomassie® Blue staining, showing the band at 30 kDa under reducing condition and 30 & 60 kDa under non-reducing condition.

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

3 results found

Lot NumberCertificate TypeDateItem
ZJ25F0723514Certificate of AnalysisMay 20, 2026 rp165076
ZJ25F0723515Certificate of AnalysisMay 20, 2026 rp165076
ZJ25F0723516Certificate of AnalysisMay 20, 2026 rp165076
Documents & Articles
Solution Calculators
Reviews

Customer Reviews

Need help choosing the grade?

Our grade selection guide covers purity, stabilizer status, and application suitability for all variants in our catalog.

View Animal Free grade guide → View Carrier Free grade guide → View His Tag grade guide →

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