obsolete decreased protein tyrosine phosphorylation during cellular response to hydroxyurea true decreased protein tyrosine phosphorylation during cellular response to hydroxyurea during vegetative growth 2015-01-07T15:58:13Z decreased protein tyrosine phosphorylation during cellular response to hydroxyurea during mitotic cell cycle FYPO:0004258 FYPO:0002098 decreased tyrosine phosphorylation during cellular response to hydroxyurea reduced protein tyrosine phosphorylation during cellular response to hydroxyurea midori decreased protein tyrosine phosphorylation during cellular response to HU decreased peptidyl-tyrosine phosphorylation during cellular response to hydroxyurea This term was made obsolete to implement a decision that protein modification terms should only include residue-specific information in cases where it is especially biologically significant, such as in histones or the RNA polymerase II CTD. In all other cases, phenotypic effects on specific modified residues should be captured in annotation extensions. OBSOLETE. A cellular process phenotype observed in the vegetative growth phase of the life cycle in which the phosphorylation of tyrosine residues in one or more specific proteins, or of specific protein sites, occurs to a lower extent than normal during a cellular response to hydroxyurea.