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. 2017 Jul 31;8:159. doi: 10.1038/s41467-017-00188-1

Fig. 1.

Fig. 1

Hel2-dependent ubiquitination was required for a triggering step of RQC pathway. a An E3 ubiquitin ligase Hel2 was required for not only translation arrest, but also the production of arrest products. b The ubiquitination activity of Rqt1 was crucial for induction of RQC. c The distribution of Rqt1 proteins in polysome profiles. d The ubiquitinated proteins in ribosome depended on Hel2/Rqt1 and Ubc4. Arrowed proteins were identified by mass spectrometry. e K212 residue of uS3 and K6 and K8 residues of uS10 were ubiquitination sites of them. f Hel2-dependent ubiquitination of uS10-K6/8 was crucial for induction of RQC pathway