The Function of ATPase Copper Transporter ATP7B in Intestine
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چکیده
منابع مشابه
Transport of cisplatin by the copper efflux transporter ATP7B.
ATP7B is a P-type ATPase that mediates the efflux of copper. Recent studies have demonstrated that ATP7B regulates the cellular efflux of cisplatin (DDP) and controls sensitivity to the cytotoxic effects of this drug. To determine whether DDP is a substrate for ATP7B, DDP transport was assayed in vesicles isolated from Sf9 cells infected with a baculovirus that expressed either the wild-type AT...
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15 صفحه اولThe soluble metal-binding domain of the copper transporter ATP7B binds and detoxifies cisplatin.
Wilson disease ATPase (ATP7B) has been implicated in the resistance of cancer cells to cisplatin. Using a simple in vivo assay in bacterial culture, in the present study we demonstrate that ATP7B can confer resistance to cisplatin by sequestering the drug in its N-terminal metal-binding domain without active drug extrusion from the cell. Expression of a protein fragment containing four N-termin...
متن کاملInvolvement of protein kinase D in expression and trafficking of ATP7B (copper ATPase).
ATP7B is a P-type ATPase involved in copper transport and homeostasis. In experiments with microsomes isolated from COS-1 cells or HepG2 hepatocytes sustaining ATP7B heterologous expression, we found that ATP7B utilization of ATP includes autophosphorylation of an aspartyl residue serving as ATPase catalytic intermediate as well as phosphorylation of serine residues by protein kinase D (PKD). T...
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ژورنال
عنوان ژورنال: Gastroenterology
سال: 2018
ISSN: 0016-5085
DOI: 10.1053/j.gastro.2017.09.019