TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

PHOSPHATASE [1 record]

Record 1 2012-07-11

English

Subject field(s)
  • Biochemistry
  • Molecular Biology
DEF

Enzyme that catalyzes the hydrolysis and synthesis of phosphoric acid esters and the transfer of phosphate groups from phosphoric acid to other compounds.

CONT

Protein phosphorylation is reversible because of the abundant phosphatases present in the cytosol. When protein kinases are turned off, these phosphatases remove the phosphate from the phosphorylated enzyme, and the enzyme activity returns to its former level. The adenylation of tyrosine side chains (in which an AMP moiety from ATP is reversibly added to the tyrosine OH group) provides another important regulatory system, as does the reversible methylation of glutamic acid side chains.

French

Domaine(s)
  • Biochimie
  • Biologie moléculaire
DEF

Enzyme provoquant une déphosphorylation sur un acide nucléique. [Définition normalisée par l'AFNOR et reproduite avec son autorisation.]

OBS

Des phosphatases sont présentes dans la plupart des tissus de l'organisme et dans le sang (phosphatasémie) sous forme de phosphatases acides (actives en milieu acide) dont la plus importante est la phosphatase prostatique, et de phosphatases alcalines (actives en milieu alcalin) provenant du foie, de l'intestin, du rein et des os.

OBS

phosphatase : terme normalisé par l'AFNOR.

Spanish

Campo(s) temático(s)
  • Bioquímica
  • Biología molecular
DEF

Enzima hidrolasa cuya actividad libera ácido ortofosfórico inorgánico a partir de algún sustrato fosforilado.

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