Mammalian copper-transporting P-type ATPases, ATP7A and ATP7B: Emerging roles
نویسندگان
چکیده
منابع مشابه
Role of glutaredoxin1 and glutathione in regulating the activity of the copper-transporting P-type ATPases, ATP7A and ATP7B.
The copper-transporting P-type ATPases (Cu-ATPases), ATP7A and ATP7B, are essential for the regulation of intracellular copper homeostasis. In this report we describe new roles for glutathione (GSH) and glutaredoxin1 (GRX1) in Cu homeostasis through their regulation of Cu-ATPase activity. GRX1 is a thiol oxidoreductase that catalyzes the reversible reduction of GSH-mixed disulfides to their res...
متن کاملRole of the P-Type ATPases, ATP7A and ATP7B in brain copper homeostasis
Over the past two decades there have been significant advances in our understanding of copper homeostasis and the pathological consequences of copper dysregulation. Cumulative evidence is revealing a complex regulatory network of proteins and pathways that maintain copper homeostasis. The recognition of copper dysregulation as a key pathological feature in prominent neurodegenerative disorders ...
متن کاملStructural models of the human copper P-type ATPases ATP7A and ATP7B.
The human copper exporters ATP7A and ATP7B contain domains common to all P-type ATPases as well as class-specific features such as six sequential heavy-metal binding domains (HMBD1-HMBD6) and a type-specific constellation of transmembrane helices. Despite the medical significance of ATP7A and ATP7B related to Menkes and Wilson diseases, respectively, structural information has only been availab...
متن کاملComparative Features of Copper ATPases ATP7A and ATP7B Heterologously Expressed in COS-1 Cells
ATP7A and ATP7B are P-type ATPases required for copper homeostasis and involved in the etiology of Menkes and Wilson diseases. We used heterologous expression of ATP7A or ATP7B in COS-1 cells infected with adenovirus vectors to characterize differential features pertinent to each protein expressed in the same mammalian cell type, rather than to extrinsic factors related to different cells susta...
متن کاملIntracellular targeting of copper-transporting ATPase ATP7A in a normal and Atp7b
Rachel Linz,* Natalie L. Barnes,* Adriana M. Zimnicka, Jack H. Kaplan, Betty Eipper, and Svetlana Lutsenko Department of Biochemistry and Molecular Biology, Oregon Health and Science University, Portland, Oregon; Department of Biochemistry and Molecular Genetics, University of Illinois, Chicago, Illinois; and Department of Neuroscience, University of Connecticut Health Center, Farmington, Conne...
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ژورنال
عنوان ژورنال: The International Journal of Biochemistry & Cell Biology
سال: 2010
ISSN: 1357-2725
DOI: 10.1016/j.biocel.2009.11.007