Abstract
Copper is indispensable for development and function of the central nervous system (CNS). This is dramatically illustrated by the severe neuropathological deficits in Menkes disease, an X-linked copper deficiency disorder resulting from mutation of the gene that encodes an essential copper transporting P-type ATPase, ATP7A. Since its discovery over two decades ago, the role of ATP7A in copper transport and homeostasis has been inextricably linked to satisfying systemic and CNS requirements for copper. In this issue of American Journal of Physiology - Cell Physiology, Hodgkinson et al. (2015) describe an important body of work, which for the first time distinguishes the CNS requirement for ATP7A from the CNS requirement for copper.
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