PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
11278834-3	2001	We found that a novel Ran mutant with four of its five acidic C-terminal amino acids modified to alanine (RanC4A) has an approximately 20-fold reduced affinity for RanBP1.	Alanine	97-104	RAN binding protein 1	Homo sapiens	164-170