PBL constitutively express c-jun transcripts , and the level of c-jun mRNA is not altered by PHA activation in the absence or presence of EC .
pbl constitutively express c-jun transcripts , and the level of c-jun mrna is not altered by pha activation in the absence or presence of ec .
B-cell_type O O B-protein_molecule O O O O O O B-RNA_molecule I-RNA_molecule O O O O B-protein_molecule O O O O O O O B-cell_type O