CD28 Human

CD28 Human

CD Antigens

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  • Name :

    CD28 Human

    Description:

    CD28 Human Recombinant

    T-cell-specific surface glycoprotein CD28, TP44, CD_antigen: CD28, T-cell-specific surface glycoprotein CD28 isoform 1.

    Product # :

    PRO-2437

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  • description
  • source
  • formulation
  • purity
  • biological activity
  • More Info

Description

CD28 Human Recombinant produced in Sf9 Baculovirus cells is a single, glycosylated polypeptide chain containing 376 amino acids (19-152a.a.) and having a molecular mass of 42.4kDa (Molecular size on SDS-PAGE will appear at approximately 40-57kDa). CD28 is expressed with a 242 amino acids hIgG-His tag at C-Terminus and purified by proprietary chromatographic techniques.

Source

Sf9, Baculovirus cells.

Formulation

CD28 protein solution (1mg/ml) contains Phosphate Buffered Saline (pH 7.4) and 10% glycerol.

Purity

Greater than 90.0% as determined by SDS-PAGE.

Biological Activity

The ED50 range ≤ 60ug/ml and is measured by its binding ability in a functional ELISA with Human CD80 (CAT# pro-2473).

More Info

  • Introduction

    CD28 co-stimulation is necessary for CD4 positive T-cell proliferation & 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.

  • Synonyms

    T-cell-specific surface glycoprotein CD28, TP44, CD_antigen: CD28, T-cell-specific surface glycoprotein CD28 isoform 1.

  • Physical Appearance

    Sterile filtered colorless solution.

  • Stability

    Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Avoid multiple freeze-thaw cycles.

  • Amino Acid Sequence

    ADPNKILVKQ SPMLVAYDNA VNLSCKYSYN LFSREFRASL HKGLDSAVEV CVVYGNYSQQ LQVYSKTGFN CDGKLGNESV TFYLQNLYVN QTDIYFCKIE VMYPPPYLDN EKSNGTIIHV KGKHLCPSPL FPGPSKPLEP KSCDKTHTCP PCPAPELLGG PSVFLFPPKP KDTLMISRTP EVTCVVVDVS HEDPEVKFNW YVDGVEVHNA KTKPREEQYN STYRVVSVLT VLHQDWLNGK EYKCKVSNKA LPAPIEKTIS KAKGQPREPQ VYTLPPSRDE LTKNQVSLTC LVKGFYPSDI AVEWESNGQP ENNYKTTPPV LDSDGSFFLY SKLTVDKSRW QQGNVFSCSV MHEALHNHYT QKSLSLSPGK HHHHHH.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Cd28 Human

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