Copper(I) transfer into apo-stellacyanin using copper(I)-thiourea as a copper-thionein model
- 1 August 1984
- journal article
- research article
- Published by Portland Press Ltd. in Biochemical Journal
- Vol. 221 (3), 923-925
- https://doi.org/10.1042/bj2210923
Abstract
The direct incorporation of Cu(I) from [Cu(I)(thiourea)3]Cl, a structural analogue of Cu-thionein, into apo-stellacyanin, was successful both aerobically and anaerobically. A characteristic c.d. band of Cu(I)-stellacyanin at 270 nm (0 = −12.5×10(3) degrees X cm2 X dmol-1) was seen. On oxidation with hexacyanoferrate(III) or by air, the correct Cu(II) binding into the active centre of this ‘Type 1’ Cu-protein was deduced from chiroptical measurements which were supported by e.p.r. data. Thus Cu-thiourea turned out to be an excellent Cu(I)-donor in aqueous systems for the complete reconstitution of mononuclear Blue copper proteins.This publication has 7 references indexed in Scilit:
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