Heterologous Expression of Thermogutta terrifontis Endo-Xanthanase in Penicillium verruculosum, Isolation and Primary Characterization of the Enzyme

Yury A. Denisenko*, Olga G. Korotkova, Ivan N. Zorov, Alexandra M. Rozhkova, Margarita V. Semenova, Alexandr G. Elcheninov, Ilya V. Kublanov, Arkady P. Sinitsyn

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Abstract: Heterologous endo-xanthanase (EX) from the thermophilic planktomycete Thermogutta terrifontis strain was obtained using Penicillium verruculosum 537 (ΔniaD) expression system with the cellobiohydrolase 1 gene promoter. Homogeneous EX with a molecular weight of 23.7 kDa (pI 6.5) was isolated using liquid chromatography methods. This xanthan degrading enzyme also possesses the enzymatic activity towards CM-cellulose, β-glucan, curdlan, lichenan, laminarin, galactomannan, xyloglucan but not towards p-nitrophenyl derivatives of β-D-glucose, mannose and cellobiose. The temperature and pH optima of EX were 55°C and 4.0, respectively; the enzyme exhibited 90% of its maximum activity in the temperature range 50-60°C and pH 3-5.

Original languageEnglish
Pages (from-to)489-495
Number of pages7
JournalBiochemistry (Moscow)
Volume86
Issue number4
DOIs
StatePublished - Apr 2021
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2021, Pleiades Publishing, Ltd.

Keywords

  • Penicillium verruculosum
  • Thermogutta terrifontis
  • endo-xanthanase
  • heterologous expression
  • xanthan destruction

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