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Copper chaperones, intracellular copper trafficking proteins. Function, structure, and mechanism of action
This review summarizes findings on a new family of small cytoplasmic proteins called copper chaperones. The copper chaperones bind and deliver copper ions to intracellular compartments and insert the copper into the active sites of specific partners, copper-dependent enzymes. Three types of copper c...
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| Published in: | Biochemistry (Moscow) 2003-08, Vol.68 (8), p.827-837 |
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| Main Authors: | , |
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| Language: | English |
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| container_end_page | 837 |
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| container_title | Biochemistry (Moscow) |
| container_volume | 68 |
| creator | Markossian, K A Kurganov, B I |
| description | This review summarizes findings on a new family of small cytoplasmic proteins called copper chaperones. The copper chaperones bind and deliver copper ions to intracellular compartments and insert the copper into the active sites of specific partners, copper-dependent enzymes. Three types of copper chaperones have been found in eukaryotes. Their three-dimensional structures have been determined, intracellular target proteins identified, and mechanisms of action have been revealed. The Atx1 copper chaperone binds Cu(I) and interacts directly with the copper-binding domains of a P-type ATPase copper transporter, its physiological partner. The copper chaperone CCS delivers Cu(I) to Cu,Zn-superoxide dismutase 1. Cox17 and Cox11 proteins serve as copper chaperones for cytochrome c oxidase, a copper-dependent enzyme. |
| doi_str_mv | 10.1023/A:1025740228888 |
| format | article |
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| ispartof | Biochemistry (Moscow), 2003-08, Vol.68 (8), p.827-837 |
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| subjects | Animals Carrier Proteins - metabolism Cation Transport Proteins - metabolism Copper Copper - metabolism Electron Transport Complex IV - metabolism Humans Membrane Proteins - metabolism Mitochondrial Proteins Models, Molecular Molecular Chaperones - metabolism Protein Transport - physiology Proteins Saccharomyces cerevisiae Proteins - metabolism Superoxide Dismutase - metabolism |
| title | Copper chaperones, intracellular copper trafficking proteins. Function, structure, and mechanism of action |
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