PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
12644454-5	2003	Npl4 NZF binds specifically, but weakly, to free ubiquitin using a conserved 13TF14 dipeptide to interact with the "Ile-44" surface of ubiquitin.	Isoleucine	116-119	NPL4 homolog, ubiquitin recognition factor	Homo sapiens	0-4