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CD28 Fc Chimera Protein, Human/Cynomolgus/Rhesus macaque

CD28 Fc Chimera Protein, Human/Cynomolgus/Rhesus macaque

Catalog Number: UA011183 Reactivity: Cynomolgus Conjugation: Unconjugated Brand: UA BIOSCIENCE
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Regular price $124 USD
Regular price Sale price $124 USD
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Product Details

Product Specification


Species Cynomolgus
Synonyms CD28 Antigen,T-Cell-Specific Surface Glycoprotein CD28,CD28 Antigen (Tp44),Tp44,CD28 Antigens,CD28 Molecule,T-Cell-Specific Surface Glycoprotein
Accession P10747
Amino Acid Sequence

Asn19-Pro152 with Human IgG1 Fc at C-Terminus

Expression System HEK293
Molecular Weight 50-70kDa (Reducing)
Purity >95% by SDS-PAGE & SEC-HPLC
Conjugation Unconjugated
Tag Human IgG1 Fc
Physical Appearance Lyophilized Powder
Storage Buffer

PBS PH7.4 5% trehalose

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

Courtemanche O, Huppé CA, Blais-Lecours P, Maranda C, Morissette MC, Blanchet MR, Dion G, Marsolais D. Ex Vivo Overactivation of Lymphocyte Subsets in Fibrotic Hypersensitivity Pneumonitis Is Blunted by a Sphingosine-1-Phosphate Receptor Ligand. Int J Mol Sci. 2025 Mar 29;26(7):3197.

Background

T-cell-specific surface glycoprotein CD28, also known as TP44, is a single-pass type I membrane protein containing one Ig-like V-type (immunoglobulin-like) domain. CD28 is one of the molecules expressed on T cells that provide co-stimulatory signals required for T cell activation. It serves as the receptor for CD80 (B7.1) and CD86 (B7.2). When antigen-presenting cells (APCs) are activated by Toll-like receptor ligands, CD80 expression is upregulated. In contrast, CD86 expression on APCs is constitutive. Notably, CD28 is the only B7 receptor constitutively expressed on naive T cells, highlighting its crucial role in the initial activation of T cells.

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SDS-PAGE

2μg (R: reducing condition, N: non-reducing condition).

SEC-HPLC

The purity of CD28 Fc Chimera Protein, Human/Cynomolgus/Rhesus macaque is more than 95% determined by SEC-HPLC.

ELISA

Immobilized CD28 Fc Chimera Protein, Human/Cynomolgus/Rhesus macaque (Cat. No. UA011183) at 5.0μg/mL (100μL/well) can bind Biotinylated B7-1 Fc&Avi Tag Protein, Human (Cat. No. UA010460) with EC50 of 0.39-0.49ug/mL.

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