Pavel Lulchev

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Reverse gyrases are topoisomerases that introduce positive supercoils into DNA in an ATP-dependent reaction. They consist of a helicase domain and a topoisomerase domain that closely cooperate in catalysis. The mechanism of the functional cooperation of these domains has remained elusive. Recent studies have shown that the helicase domain is a(More)
Quercetinases are metal-dependent dioxygenases of the cupin superfamily. While fungal quercetinases are copper proteins, recombinant Streptomyces quercetinase (QueD) was previously described to be capable of incorporating Ni2+ and some other divalent metal ions. This raises the questions of which factors determine metal selection, and which metal ion is(More)
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