SLP-76 and Vav , two hematopoietic cell specific molecules , are critical for T cell development and activation .
slp-76 and vav , two hematopoietic cell specific molecules , are critical for t cell development and activation .
B-protein_molecule O B-protein_molecule O O B-protein_molecule I-protein_molecule I-protein_molecule I-protein_molecule O O O O B-other_name I-other_name I-other_name O O O