Recombinant Mouse Antibody binds selectively to Mouse CD3E. The protein encoded by this gene is the CD3-epsilon polypeptide, which together with CD3-gamma, -delta and -zeta, and the T-cell receptor
alpha/beta and gamma/delta heterodimers, forms the T-cell receptor-CD3 complex. This complex plays an important role.
https://www.creativebiolabs.net/Recombinant-Mouse-Anti-Human-CD3E-Antibody-Fab-Fragment-clone-UCHT1-398.htm