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Science. 1994 Jun 17;264(5166):1772-5.

Motor neuron degeneration in mice that express a human Cu,Zn superoxide dismutase mutation.

Author information

1
Department of Cell and Molecular Biology, Northwestern University Medical School, Chicago, IL 60611.

Erratum in

  • Science 1995 Jul 14;269(5221):149.

Abstract

Mutations of human Cu,Zn superoxide dismutase (SOD) are found in about 20 percent of patients with familial amyotrophic lateral sclerosis (ALS). Expression of high levels of human SOD containing a substitution of glycine to alanine at position 93--a change that has little effect on enzyme activity--caused motor neuron disease in transgenic mice. The mice became paralyzed in one or more limbs as a result of motor neuron loss from the spinal cord and died by 5 to 6 months of age. The results show that dominant, gain-of-function mutations in SOD contribute to the pathogenesis of familial ALS.

PMID:
8209258
[Indexed for MEDLINE]

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