The nuclear transport receptor CRM1 mediates protein export from the nucleus through recognition of leucine-rich nuclear export signals on substrates. Structural analysis, based in part on the recent structure of a CRM1-SNUPN complex, reveal determinants for substrate binding and suggest a mechanism for binding partner-assisted dissociation of SNUPN in the cytoplasm.
- Xiuhua Dong
- Anindita Biswas
- Yuh Min Chook