ProSci

CD28 Recombinant Protein

Product Code:
 
PSI-91-952
Product Group:
 
Recombinant Proteins
Supplier:
 
ProSci
Regulatory Status:
 
RUO
Target Species:
 
Human
Storage:
 
Lyophilized protein should be stored at -20˚C, though stable at room temperature for 3 weeks.
Reconstituted protein solution can be stored at 4-7˚C for 2-7 days.
Aliquots of reconstituted samples are stable at -20˚C for 3 months.
 

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CodeSizePrice
PSI-91-952-0.05mg0.05mg£373.00
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Further Information

Additional Names:
CD28; CD28 antigen; CD28 molecule; T-cell-specific surface glycoprotein CD28; Tp44; TP44, TP44
Application Note:
This recombinant protein can be used for biological assays. For research use only.
Background:
T-cell-specific surface glycoprotein CD28(CD28) is a single-pass typeI membrane protein which contains one Ig-likeV-type (immunoglobulin-like) domain. It belongs to the immunoglobulin(Ig) superfamily. CD28 is one of the molecules expressed on T cells that provide co-stimulatory signals, which are required for T cell activation.CD28 co-stimulation is necessary for CD4 positive T-cell proliferation and survival, interleukin-2 production, and T-helper type-2 development. Human post-thymic regulatory T cells require CD28 co-stimulation to expand and maintain potent suppressive function in vivo. Apoptosis plays a key role in the age-related decline of CD28 expression and in immunosenescence. CD28 is the receptor for CD80 (B7.1) and CD86 (B7.2). When activated by Toll-like receptor ligands, the CD80 expression is upregulated in antigen presenting cells (APCs). The CD86 expression on antigen presenting cells is constitutive. CD28 is the only B7 receptor constitutively expressed on naive T cells.
Buffer:
Lyophilized from a 0.2 um filtered solution of PBS,pH7.4. It is not recommended to reconstitute to a concentration less than 100 ug/ml. Dissolve the lyophilized protein in ddH2O.
Fusion Tag:
C-Fc tag
NCBI Gene ID #:
940
NCBI Official Name:
CD28 molecule
NCBI Official Symbol:
CD28
NCBI Organism:
Homo sapiens
Physical State:
Lyophilized
Predicted Molecular Weight:
42.3 kD
Protein Accession #:
P10747
Purity:
Greater than 95% as determined by reducing SDS-PAGE.
Endotoxin level less than 0.1 ng/ug (1 IEU/ug) as determined by LAL test.
Recombinant Protein Sequence:
Thr32-Gly402
Source:
Human Cells
Swissprot #:
P10747

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