PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
21919041-0	2011	Mitochondrial DNA copy number and hnRNP A2/B1 protein: biomarkers for direct exposure of benzene.	Benzene	89-96	heterogeneous nuclear ribonucleoprotein A2/B1	Homo sapiens	34-45	
21919041-10	2011	Among them, the heterogeneous nuclear ribonucleoprotein (hnRNP) A2/B1 was markedly decreased after exposure to benzene.	Benzene	111-118	heterogeneous nuclear ribonucleoprotein A2/B1	Homo sapiens	16-69	
21919041-11	2011	Thus, increased mitochondrial mass, mtDNA copy number, and the hnRNP A2/B1 protein were biomarkers for benzene-related toxicity and hematotoxicity.	Benzene	103-110	heterogeneous nuclear ribonucleoprotein A2/B1	Homo sapiens	63-74