- Cytohesin binder and regulator (cybr) is not essential for T- and dendritic-cell activation and differentiation. Watford, W.T., Li, D., Agnello, D., Durant, L., Yamaoka, K., Yao, Z.J., Ahn, H.J., Cheng, T.P., Hofmann, S.R., Cogliati, T., Chen, A., Hissong, B.D., Husa, M.R., Schwartzberg, P., O'Shea, J.J., Gadina, M. Mol. Cell. Biol. (2006)