In this study , two regions in the cytoplasmic domain of human IL-9Ralpha were found to be important for IL-9 -mediated cell growth .
in this study , two regions in the cytoplasmic domain of human il-9ralpha were found to be important for il-9 -mediated cell growth .
O O O O O O O O B-protein_domain_or_region I-protein_domain_or_region O B-protein_subunit I-protein_subunit O O O O O O B-protein_molecule O O O O