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dismutase

dismutase

1 9.9
A protein that speeds up a reaction turning two identical molecules into two different ones
  • noun
  • /ˈdɪs.mjuː.teɪs/
  • Specialized
translation icon : dismutasa
  • A further finding in support of this hypothesis is that transgenic mice, which express mutant forms of human superoxide dismutase, developed a disease somewhat similar to MND.
  • superoxide dismutase
  • dismutase and glutathione
  • dismutase and catalase

Examples

  • All sepsis-causing bacteria produce superoxide dismutase (SOD), catalase, and glutathione peroxidases (Table 2) that protect them against oxidative stress caused by reactive oxygen species.

    Academic text (2017)
  • The manganese and zinc binding protein calprotectin (CP) reduces bacterial superoxide dismutase activity 190,191.

    Academic text (2017)
  • The superoxide radical is converted to hydrogen peroxide by superoxide dismutase.

    Academic text (2017)
  • This hypothesis is supported by the discovery of an association between familial MND and mutations in the copper-zinc superoxide dismutase gene on chromosome 21.

    Academic text (2000)
  • Glutathione peroxidase and superoxide dismutase activities were increased to varying degrees, and malondialdehyde (MDA) levels were reduced (Cao et al., 2008).

    Academic text (2015)
  • Superoxide dismutase gene mutations have been detected in a few patients with sporadic MND. However, such mutations were found in only 20% of cases of familial MND.

    Academic text (2000)
  • If mutations could be demonstrated in most MND families, and if patients with sporadic MND also prove to have abnormal superoxide dismutase function, new therapeutic strategies with antioxidants might become possible.

    Academic text (2000)
  • The mechanism of antioxidants includes the activation of defense enzymes such as glutathione peroxidase, superoxide dismutase, and catalase, which are responsible for ROS scavenging.

    Academic text (2008)
  • Studies showed that the expression of the antioxidant enzyme superoxide dismutase (Mn SOD) was consistently higher in lesional psoriatic skin as compared to uninvolved skin.

    Academic text (2007)
  • Superoxide dismutase helps convert harmful superoxide radicals into less damaging molecules in the body.

Compounds

superoxide dismutase
  • Specialized
6.8

A protein in cells that turns harmful superoxide into oxygen and hydrogen peroxide

Surface Forms

dismutase singular
dismutases plural

Morphology

dismutase = dismutation (semi-transparent) = dis + mut + ase

Formed from the technical term 'dismutation' plus the enzyme suffix '-ase', so the morphological relation is clear to specialists but only partly transparent to average learners.

Etymology

The word dismutase comes from the parts dis- ('apart'), mut- ('change', the same root as mutate) and the enzyme ending -ase, so it is an enzyme that 'changes' two identical molecules into two different products.