Auxin signalling requires the degradation of Aux/IAA transcriptional repressors which is mediated by their interaction with F-box proteins. Jing et al. show that in rice, OsIAA11 interaction with the F-box protein TIR1 is enhanced by cyclophilin-dependent cis/transisomerisation of the repressor.
- Hongwei Jing
- Xiaolu Yang
- Jianru Zuo