. "The process of introducing a phosphate group onto a serine residue at position 2 within the heptapeptide repeat (YSPTSPS) of the C-terminal domain of RNA polymerase II. Typically, phosphorylation of serine 2 (Ser2) occurs subsequent to phosphorylatio"@en . "GO:0071619" . "C2754824" . . "biologisch proces"@nl . . . "phosphorylation of RNA polymerase II C-terminal domain serine 2 residues"@en . . . "phosphorylation of RNA polymerase II C-terminal domain serine 2 residues"@en . . "\u0431\u0456\u043E\u043B\u043E\u0433\u0456\u0447\u043D\u0438\u0439 \u043F\u0440\u043E\u0446\u0435\u0441"@uk . . "phosphorylation of RNA polymerase II C-terminal domain serine 2 residues"@en . .