Olga Ponamoreva

Olga Ponamoreva


Research Focus & Metrics

Academic Career Length

2Years (2025-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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LTLiubov Trubitsina
Liubov Trubitsina
KEKonstantin Egorov
Konstantin Egorov
AAAzat Abdullatypov
Azat Abdullatypov
MPMarina Petrakova
Marina Petrakova
ITIvan Trubitsin
Ivan Trubitsin
OPOlga Ponamoreva
Olga Ponamoreva
A novel two-domain small laccasefrom Streptomyces ochraceiscleroticus (SoSL) was produced through recombination in Escherichia coli and purified by affinity chromatography. The properties (thermal optimum and thermostability, pH optima and pH-stability), kinetic characteristics, substrate specificity and dye decolorization ability were estimated. Laccase SoSL was able to oxidize 2,2′-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid (ABTS)and 2,6-dimethoxyphenol (2,6-DMP) with at a maximal rate at pH 3.5 and 9.0, respectively, and was stable at pH 9.0 (retained 75% activity after incubation at room temperature for 120 h). High enzyme affinity to ABTS is caused by an expanded area occupied by aromatic amino acid residues on its surface. Substrate-directed immobilization of the enzyme was performed using naphthylated multiwalled carbon nanotubes (MWCNTs), and a high oxygen reduction reaction potential (+0.62 V vs. normal hydrogen electrode (NHE)) was observed. The above-mentioned features make this enzyme a promising one for further studies in bioremediation and biological fuel cell technologies.