The immunizing peptide represents a part of the extracellular domain.CD28 (CD28 molecule) is a protein-coding gene. Diseases associated with CD28 include sialadenitis, and wegener's granulomatosis, and among its related super-pathways are Allograft rejection and Costimulation by the CD28 family. GO annotations related to this gene include SH3/SH2 adaptor activity and identical protein binding. An important paralog of this gene is CTLA4.Store at -20°C.Aliquot to avoid repeated freezing and thawing. *   http://www.creative-diagnostics.com/Anti-CD28-PAb-188687-147.htm