tokens: Fludarabine caused a specific depletion of STAT1 protein ( and mRNA ) but not of other STATs .
folded_tokens: fludarabine caused a specific depletion of stat1 protein ( and mrna ) but not of other stats .
labels: B-other_organic_compound O O O O O B-protein_molecule O O O O O O O O O B-protein_family_or_group O