tokens: p21 ( ras ) , a guanine nucleotide binding factor , mediates T-cell signal transduction through PKC -dependent and PKC -independent pathways .
folded_tokens: p21 ( ras ) , a guanine nucleotide binding factor , mediates t-cell signal transduction through pkc -dependent and pkc -independent pathways .
labels: B-protein_molecule I-protein_molecule I-protein_molecule I-protein_molecule O O B-nucleotide I-nucleotide O O O O B-other_name I-other_name I-other_name O B-protein_molecule O O B-protein_molecule O O O