phosphatase
UK[ˈfɒsfəteɪz]US[ˈfɑːsfəteɪz]
n
an enzyme that catalyzes the hydrolysis of esters of phosphoric acid, removing a phosphate group from its substrate.
Morpheme Breakdown
phosphat
ase
phosphat
phosphate
ase
enzyme suffix
Etymology
the word 'phosphatase' is a modern biochemical term constructed in the late 19th/early 20th century. its first element, 'phosphat-', derives from 'phosphate', which traces back to 'phosphorus'. phosphorus itself originates from greek 'phōsphoros', meaning 'light-bearing', a reference to the element's property of glowing in the dark. the suffix '-ase', established as the standard denoter for enzymes, was adopted from french/latin. thus, the term logically combines the substrate (a phosphate compound) with the agent (an enzyme), creating a precise label for an enzyme that acts upon phosphate esters.
Analysis
Structure: phosphat (phosphate) + ase (enzyme suffix)
- phosphat: from french 'phosphate', ultimately from greek 'phōs' (light) via 'phosphorus' (light-bearer). denotes a salt or ester of phosphoric acid.
- ase: a suffix of french/latin origin, used in biochemistry to form names of enzymes, indicating its functional role.
Examples
alkaline phosphatase is a common biomarker tested in liver function panels.
the activity of acid phosphatase is often elevated in certain prostate conditions.
researchers are studying the role of specific phosphatases in cellular signaling pathways.