PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9235958-6 1997 We find that karyopherin alpha first releases RanGTP from karyopherin beta in a reaction that does not require GTP hydrolysis. rangtp 46-52 karyopherin alpha Saccharomyces cerevisiae S288C 13-30