Anti-Human CD28 Rabbit Recombinant Antibody

CD28 Uni-rAb^TM Recombinant Antibody for FC

Host / Isotype

Rabbit / IgG

Reactivity

Human

Applications

FC

Conjugate

Unconjugated

CloneNo.

240354D2

Cat no : 98032-1-RR

Synonyms

Tp44, T-cell-specific surface glycoprotein CD28, CD28 molecule, 240354D2

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Validation Data Gallery

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  FC experiment of human PBMCs using 98032-1-RR

  1x10^6 human PBMCs were surface stained with 0.25 ug Anti-Human CD28 Rabbit Recombinant Antibody (98032-1-RR, Clone: 240354D2) or Isotype Control, and PE-Conjugated Goat Anti-Rabbit IgG(H+L). Cell were then stained with CoraLite® Plus 647 Anti-Human CD3. Cells were not fixed. Lymphocytes were gated.

• 

  FC experiment of human PBMCs using 98032-1-RR

  1x10^6 human PBMCs were surface stained with 0.25 ug Anti-Human CD28 Rabbit Recombinant Antibody (98032-1-RR, Clone: 240354D2) (red) or Isotype Control (blue), and PE-Conjugated Goat Anti-Rabbit IgG(H+L). Cells were not fixed. Lymphocytes were gated.

• 

  Affinity and Kinetic Characterization of 98032-1-RR

  Biolayer interferometry (BLl) kinetic assays of 98032-1-RR against Human CD28 were performed. The affinity constant is 3.23 nM.

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Tested Applications

• Positive FC detected in: human PBMCs

Recommended dilution

Application	Dilution
This reagent has been tested for flow cytometric analysis. It is recommended that this reagent should be titrated in each testing system to obtain optimal results.
Sample-dependent, Check data in validation data gallery.

Product Information

The immunogen of 98032-1-RR is CD28 Fusion Protein expressed in E. coli.

• Tested Reactivity: Human
• Host / Isotype: Rabbit / IgG
• Class: Recombinant
• Type: Antibody
• Immunogen: Fusion Protein
• Full Name: CD28 molecule
• Calculated Molecular Weight: 220 aa, 25 kDa
• GenBank Accession Number: BC093698
• Gene Symbol: CD28
• Gene ID (NCBI): 940
• Conjugate: Unconjugated
• Form: Liquid
• Purification Method: Protein A purfication
• Storage Buffer: PBS with 0.09% sodium azide.
• Storage Conditions: Store at 2-8°C. Stable for one year after shipment.

Background Information

CD28 (T-cell-specific surface glycoprotein CD28), also known as T44 and Tp44, is a 44 kD disulfide-linked homodimeric type I glycoprotein (PMID: 2162180). It is a member of the immunoglobulin superfamily and is expressed on most T lineage cells, NK cell subsets, and plasma cells (PMID: 2162180, 8386518). CD28 may affect in vivo immune responses by functioning both as a cell adhesion molecule linking B and T lymphocytes and as the surface component of a novel signal transduction pathway (PMID: 2162180, 3021470). CD28 binds both CD80 and CD86 with a highly conserved motif MYPPY in the CDR3-like loop (PMID: 15696168, 7964482). CD28 is considered a major co-stimulatory molecule, inducing T lymphocyte activation and IL-2 synthesis, and preventing cell death (PMID: 1348520).