TPO induced tyrosine phosphorylation of the TPO receptor but not the erythropoietin ( EPO ) receptor .
tpo induced tyrosine phosphorylation of the tpo receptor but not the erythropoietin ( epo ) receptor .
B-protein_molecule O B-amino_acid_monomer O O O B-protein_molecule O O O O B-protein_family_or_group I-protein_family_or_group B-protein_molecule O O O