2Q5D

Crystal Structure of Human Importin Beta bound to the Snurportin1 IBB-domain second crystal form

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Importin beta-1 subunit	polymer	876	97257.8	2	UniProt (Q14974) Pfam (PF03810) Pfam (PF00514) In PDB	Homo sapiens (human)	Karyopherin beta-1 subunit, Nuclear factor P97, Importin 90
2	C, D	Snurportin-1	polymer	40	5027.8	2	UniProt (O95149) Pfam (PF11538) In PDB	Homo sapiens	RNA U transporter 1

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	204571.1
All*	Total formula weight	204571.1

*Water molecules are not included.