However , MAPK activation was easily detected by in vitro kinase assays , after FcR cross-linking with immune complexes .
however , mapk activation was easily detected by in vitro kinase assays , after fcr cross-linking with immune complexes .
O O B-protein_family_or_group O O O O O B-other_name I-other_name I-other_name I-other_name O O B-protein_family_or_group O O B-protein_complex I-protein_complex O