Trafficking mechanisms of P-type ATPase copper transporters
نویسندگان
چکیده
منابع مشابه
Trafficking of Glucose Transporters and Mechanisms Signals
The uptake of glucose into mammalian cells, catalysed by members of the GLUT family of glucose transporters, is regulated by a variety of hormones, growth factors and other agents. In adipocytes, skeletal muscle and heart the principal regulator is the hormone insulin, which rapidly stimulates glucose uptake by bringing about the translocation of the GLUT4 glucose transporter isoform from an in...
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The ctpA (ccoI) gene product, a putative inner membrane copper-translocating P1B-type ATPase present in many bacteria, has been shown to be involved only in the cbb(3) assembly in Rhodobacter capsulatus and Bradyrhizobium japonicum. ctpA was disrupted in Rubrivivax gelatinosus, and the mutants showed a drastic decrease in both cbb(3) and caa(3) oxidase activities. Inactivation of ctpA results a...
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Copper dependency in humans is most dramatically illustrated in Menkes disease, an X linked recessive copper deficiency disorder that is generally lethal in early childhood. 2 Menkes disease is caused by mutations in a transmembrane copper transporting P type ATPase, MNK (or ATP7A), which is expressed in virtually all non-hepatic tissues. Studies using cultured cells suggest that MNK is located...
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Arabidopsis thaliana has eight genes encoding members of the type 1(B) heavy metal-transporting subfamily of the P-type ATPases. Three of these transporters, HMA2, HMA3, and HMA4, are closely related to each other and are most similar in sequence to the divalent heavy metal cation transporters of prokaryotes. To determine the function of these transporters in metal homeostasis, we have identifi...
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Copper (Cu) is an essential trace element with important roles as a cofactor in many plant functions, including photosynthesis. However, free Cu ions can cause toxicity, necessitating precise Cu delivery systems. Relatively little is known about Cu transport in plant cells, and no components of the Cu transport machinery in chloroplasts have been identified previously. Cu transport into chlorop...
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ژورنال
عنوان ژورنال: Current Opinion in Cell Biology
سال: 2019
ISSN: 0955-0674
DOI: 10.1016/j.ceb.2019.02.009