Structure of importin-beta bound to the IBB domain of importin-alpha.
Cingolani, G., Petosa, C., Weis, K., Muller, C.W.(1999) Nature 399: 221-229
- PubMed: 10353244 
- DOI: 10.1038/20367
- Primary Citation of Related Structures:  
1QGK, 1QGR - PubMed Abstract: 
Cytosolic proteins bearing a classical nuclear localization signal enter the nucleus bound to a heterodimer of importin-alpha and importin-beta (also called karyopherin-alpha and -beta). The formation of this heterodimer involves the importin-beta-binding (IBB) domain of importin-alpha, a highly basic amino-terminal region of roughly 40 amino-acid residues ...