Upcoming System Maintenance

Notice: Promega will be performing essential system updates January 21–25.

Order processing and shipping will pause starting January 21 at 4:00 PM CST and resume on January 26.
Please plan to order in advance for any products needed during this timeframe.

Please contact Customer Service with any questions.

CD28 Bioassay, Propagation Model Technical Manual

Instructions for Use of Product(s)
JA1072

Literature # TM622

The CD28 Bioassay, Propagation Model is a bioluminescent reporter cell-based assay that can be used to measure the potency and stability of antibodies and other potential biologics that activate CD28. The assay consists of two genetically engineered cell lines, CD28 Effector Cells and FcγRIIb aAPC/CHO-K1 Cells. These cells are provided in Cell Propagation Model (CPM) format, which includes cryopreserved cells that can be thawed, propagated and banked for long-term use.

Summary of Changes
The following changes were made to the 5/25 revision of this document:
1. Updated text about the label in Section 3.
2. Corrected two typographical errors.

Revised 5/25.