tokens: Supershift analysis revealed these proteins to be Egr-1 and Egr-2 ( Krox-20 ) ; Egr-3 was not detected .
folded_tokens: supershift analysis revealed these proteins to be egr-1 and egr-2 ( krox-20 ) ; egr-3 was not detected .
labels: O O O O O O O B-protein_molecule O B-protein_molecule O O O O B-protein_molecule O O O O