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Metallothionein Gene Regulation in Menkes' Syndrome
Dean H. Hamer, PhD
Arch Dermatol. 1987;123(10):1384a-1385a.
Abstract
• The characteristic feature of Menkes' disease is a maldistribution of bodily copper; decreased copper levels are present in the serum, brain, and liver, whereas excess levels are present in gut, kidney, and most other nonhepatic tissues. Using cultured fibroblasts, we have shown that low extracellular copper concentrations induce synthesis of metallothionein, a copper-binding protein, in Menkes' cells but not in normal cells. This is due to a defect in a diffusable regulatory factor that is probably involved in copper metabolism. To further understand the role of the defective factor in transcription, assays have been developed to study the metaldependent binding of nuclear proteins to metallothionein gene control sequences.
(Arch Dermatol 1987;123:1384a-1385a)
Author Affiliations
From the Laboratory of Biochemistry, National Cancer Institute, National Institutes of Health, Bethesda, Md.
Footnotes
Accepted for publication May 6, 1987.
Read before the 36th Annual Symposium on the Biology of Skin ("Molecular Basis of Nutritional Dermatoses"), Salishan Lodge, Gleneden Beach, Ore, Oct 21, 1986.
Reprint requests to Laboratory of Biochemistry, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892 (Dr Hamer).
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