Invitrogen™ CD28 Biosimilar Recombinant Monoclonal Antibody

Recombinant Monoclonal Antibody

Product Code	Brand	Quantity
30283258	Invitrogen™ MA559191	100 μg
30284140	Invitrogen™ MA559192	1 mg

Description

For reconstitution, add sterile, distilled water to achieve a final antibody concentration of 1 mg/mL. Gently shake to solubilize the protein completely. Do not vortex. Reconstituted products should be stored at -80 °. This antibody can also be cross referenced by the term FR104.

CD28 antigen is a 44 kDa disulfide linked homodimeric T cell specific surface glycoprotein. CD28 is a cell adhesion molecule of the immunoglobulin superfamily which is constitutively expressed on most peripheral blood T lymphocytes. Moreover, CD28 is the critical T cell costimulatory receptor that provides the cell the important second activation signal by binding CD80 and CD86 which are expressed by antigen presenting cells. In addition to its co-stimulation role, CD28 functions by preventing T cells from entering an anergic-hyporesponsive state or from undergoing premature apoptotic cell death. In murine peripheral lymphoid organs and in the blood, all CD4+ and CD8+ T cells express CD28. In the thymus, CD28 expression is highest on immature CD3-, CD8+ and CD4+8+ cells, and on CD4-8- cells that express alpha/beta and gamma/delta TCR. The level of CD28 on mature CD4+ and CD8+ alpha/beta TCR+ thymocytes is two- to fourfold lower than on the immature cells. Diseases associated with CD28 dysfunction include mycosis fungiodes and Sezary's Disease.

Specifications

• Antigen: CD28 Humanized Biosimilar
• Content And Storage: -20°C, Avoid Freeze/Thaw Cycles
• Classification: Recombinant Monoclonal
• Form: Lyophilized
• Isotype: IgG2SA
• Target Species: Human
• Primary or Secondary: Primary
• Purification Method: Protein A

• Concentration: 1 mg/mL
• Applications: ELISA, Flow Cytometry, Functional Assay, Surface Plasmon Resonance
• Conjugate: Unconjugated
• Host Species: Human
• Regulatory Status: RUO
• Formulation: 25mM histidine with 8% sucrose, 0.01% Tween 80 and no preservative; pH 6.2
• Product Type: Antibody