- Sed1p and Srl1p are required to compensate for cell wall instability in Saccharomyces cerevisiae mutants defective in multiple GPI-anchored mannoproteins. Hagen, I., Ecker, M., Lagorce, A., Francois, J.M., Sestak, S., Rachel, R., Grossmann, G., Hauser, N.C., Hoheisel, J.D., Tanner, W., Strahl, S. Mol. Microbiol. (2004)