Neutral sphingomyelinase ( SMase ) can be activated by extracellular signals to produce ceramide , which may affect mitogen-activated protein kinase ( MAPK ) activities .
neutral sphingomyelinase ( smase ) can be activated by extracellular signals to produce ceramide , which may affect mitogen-activated protein kinase ( mapk ) activities .
B-protein_molecule I-protein_molecule O B-protein_molecule O O O O O B-other_name I-other_name O O B-other_organic_compound O O O O B-protein_family_or_group I-protein_family_or_group I-protein_family_or_group O B-protein_family_or_group O O O