Literally meaning: “the enzyme that breaks down”
Origin: Anc Greek
κατά/cata(=prefix denoting “down to” and sometimes “against”)
λύσις/lysis (=λύω/leo (break up, solve)
à dissolution or a riot
+ (-άση)/(-asy)(=-ase) enzyme suffix added to the name of the substrate that the enzyme hydrolyzes eg proteinase for protein or lipase for lipids
>διά-/dia-(=prefix denoting “through”, “apart” )
> δυο/dio(two) + στάσις/stasis(=halt) > ίστημι/histimi(=stand).
In 811 French chemist Thenard (1777-1857) discovered the existence of hydrogen peroxide in living tissues and he suported that a “vital
essence” must be present in the body to
degrate it. In this vital “ ce” was isolated by
German chemist Oscar Loew (1844-1941) and named “catalase”. Its first
crystals were reported in 1937 by American chemist James B Summer(1887-1955)
and the first X-ray structure of mammalian catalase was mapped in 1981 by essen Murthy et al. in 1949.
1.Sumner JB, Dounce AL (April 1937). "Crystalline catalase". Science 85 (2206): 366–367.
Catalase is the enzyme that
ks down od
hydrogen peroxide to water and oxygen. brea