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Brief Communication

Nature Structural & Molecular Biology 16, 558–560 (1 May 2009) | doi:10.1038/nsmb.1586

Structural basis for assembly and disassembly of the CRM1 nuclear export complex

Xiuhua Dong , Anindita Biswas & Yuh Min Chook

CRM1 (or exportin 1, Xpo1) transports proteins out of the cell nucleus through the nuclear pore complex. In the cytoplasm, GTP hydrolysis and consequent dissociation of Ran from CRM1 releases low-affinity substrates, while additional factors facilitate release of high-affinity substrates.