Table 2. NLS binding to the major and minor sites of IMPα.

NLS	Minor site				Linker*	Major site					PDB ID
	P1′	P2′	P3′	P4′		P1	P2	P3	P4	P5
Prp20	K	R	T	V	ATNGDASGAHRA	K	K	M	S	K	This study
Bimax1	K	R	P	L	EWDEDEEPP	R	K	R	K	R	3UKW
Rb	K	R	S	A	EGSNPPKP	L	K	K	L	R	1PJM
NpI	K	R	P	A	ATKKAGQ	A	K	K	K	K	1EE5
yCBP80	K	R	R	G	DFDEDENYRDFRPRM	P	K	R	Q	R	3UKY
PB2	K	R	D	S	SILTDSQTA	T	K	R	I	R	2JDQ

[6] 1PJM [9], 1EE5 [28], 3UKY [6], 2JDQ [29]. Italics indicate that the sequence could not be discerned from the electron density and was omitted from the model. References for PDB ID 3UKW