Properties of recombinant extracellular N-terminal domain of human high-affinity copper transporter 1 (hNdCTR1) and its interactions with Cu(II) and Ag(I) ions

High-affinity copper transporter 1 (CTR1) is a key link in the transfer of copper (Cu) from the extracellular environment to the cell. Violation in the control system of its expression, or mutations in this gene, cause a global copper imbalance. However, the mechanism of copper transfer via CTR1 remains unclear. It has been shown that transformed bacteria synthesizing the fused GB1-NdCTR become resistant to toxic silver ions. According to UV-Vis spectrophotometry and isothermal titration calorimetry, electrophoretically pure GB1-NdCTR specifically and reversibly binds copper and silver ions, and binding is associated with aggregation. Purified NdCTR1 forms SDS-resistant oligomers. The link between nontrivial properties of NdCTR1 and copper import mechanism from extracellular space, as well as potential chelating properties of NdCTR1, are discussed.

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:52

Enthalten in:

Dalton transactions (Cambridge, England : 2003) - 52(2023), 11 vom: 14. März, Seite 3403-3419

Sprache:

Englisch

Beteiligte Personen:

Orlov, Iurii A [VerfasserIn]
Sankova, Tatiana P [VerfasserIn]
Skvortsov, Alexey N [VerfasserIn]
Klotchenko, Sergey A [VerfasserIn]
Sakhenberg, Elena I [VerfasserIn]
Mekhova, Aleksandra A [VerfasserIn]
Kiseleva, Irina V [VerfasserIn]
Ilyechova, Ekaterina Yu [VerfasserIn]
Puchkova, Ludmila V [VerfasserIn]

Links:

Volltext

Themen:

3M4G523W1G
789U1901C5
Copper
Copper Transporter 1
Journal Article
Silver

Anmerkungen:

Date Completed 15.03.2023

Date Revised 15.03.2023

published: Electronic

Citation Status MEDLINE

doi:

10.1039/d2dt04060c

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM353216100