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Cisplatin Binding Sites in Human H-Chain Ferritin
Giarita Ferraro1, Silvia Ciambellotti2, Luigi Messori2
1Department of Chemical Sciences, University of Naples Federico II , Complesso Universitario di Monte Sant'Angelo, Via Cintia, I-80126 Naples, Italy.
Inorganic Chemistry
|July 25, 2017
Summary
Cisplatin binds to four specific sites on human H-chain ferritin, identified using X-ray crystallography. These platinum binding sites were compared to those found in horse spleen L-chain ferritin.
Area of Science:
- Biochemistry
- Structural Biology
- Pharmacology
Background:
- Ferritin is a protein complex that stores iron.
- Cisplatin is a platinum-based chemotherapy drug.
- Understanding drug-protein interactions is crucial for drug development.
Purpose of the Study:
- To identify the specific binding sites of cisplatin on human H-chain ferritin.
- To compare these binding sites with those found in L-chain ferritin.
Main Methods:
- High-resolution X-ray crystallography was employed.
- Structural analysis of cisplatin-ferritin adducts.
Main Results:
- Cisplatin binds to four distinct sites on human H-chain ferritin: His136/Lys68, His105, Cys90, and Cys102 side chains.
- The identified platinum binding sites show structural similarities to those in horse spleen L-chain ferritin.
Conclusions:
- The study precisely maps cisplatin interaction sites on human H-chain ferritin.
- Structural comparison provides insights into potential drug-protein interactions and drug design.
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