Summary of phosphorylation sites identified in Elp1 and other Elongator subunits.

1For sites identified by mass spectrometry: wt, identified in Elongator from wild-type yeast cells; k, identified in Elongator from a kti12Δ strain; s, identified in Elongator from a sit4Δ mutant.
2Phosphorylation on these two adjacent sites cannot be unambiguously distinguished.
3Demonstrated using a phosphospecific antibody; all other sites identified by mass spectrometry.
4Previously identified by Soulard et al.[40].
Summary of phosphorylation sites identified in Elp1 and other Elongator subunits.