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 >  Protein>CD28 >CD8-R52H9

Rat CD28 Protein, His Tag (BLI verified)

分子别名(Synonym)

CD28,Tp44

表达区间及表达系统(Source)

Rat CD28, His Tag (CD8-R52H9) is expressed from human 293 cells (HEK293). It contains AA Asn 20 - Leu 150 (Accession # P31042-1).

Predicted N-terminus: Asn 20

Request for sequence

蛋白结构(Molecular Characterization)

CD28 Structure

This protein carries a polyhistidine tag at the C-terminus

The protein has a calculated MW of 16.9 kDa. The protein migrates as 30-37 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

内毒素(Endotoxin)

Less than 1.0 EU per μg by the LAL method.

纯度(Purity)

>90% as determined by SDS-PAGE.

制剂(Formulation)

Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.

Contact us for customized product form or formulation.

重构方法(Reconstitution)

Please see Certificate of Analysis for specific instructions.

For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.

存储(Storage)

For long term storage, the product should be stored at lyophilized state at -20°C or lower.

Please avoid repeated freeze-thaw cycles.

This product is stable after storage at:

  1. -20°C to -70°C for 12 months in lyophilized state;
  2. -70°C for 3 months under sterile conditions after reconstitution.
 

电泳(SDS-PAGE)

CD28 SDS-PAGE

Rat CD28, His Tag on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 90%.

 

活性(Bioactivity)-BLI

CD28 BLI

Loaded Biotinylated Human B7-1, Fc,Avitag (Cat. No. B71-H82F2) on SA Biosensor, can bind Rat CD28, His Tag (Cat. No. CD8-R52H9) with an affinity constant of 15 μM as determined in BLI assay (ForteBio Octet Red96e) (QC tested).

Protocol

CD28 BLI

Loaded Biotinylated Human B7-2, Fc,Avitag, premium grade (Cat. No. CD6-H82F5) on SA Biosensor, can bind  Rat CD28, His Tag (Cat. No. CD8-R52H9) with an affinity constant of 6.1 μM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).

Protocol

 

背景(Background)

T-cell-specific surface glycoprotein CD28 is also known as TP44, is a single-pass type I membrane protein which contains one Ig-like V-type (immunoglobulin-like) domain. is one of the molecules expressed on T cells that provide co-stimulatory signals, which are required for T cell activation. 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.

 

前沿进展

 
 
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CD28靶点信息
英文全称:T-cell-specific surface glycoprotein CD28
中文全称:T细胞特异性表面糖蛋白CD28
种类:Homo sapiens
上市药物数量:0详情
临床药物数量:25详情
最高研发阶段:临床三期
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