¹H, ¹³C, ¹⁵N backbone and IVL methyl group resonance assignment of the fungal β-glucosidase from Trichoderma reesei

TY - JOUR

T1 - 1H, 13C, 15N backbone and IVL methyl group resonance assignment of the fungal β-glucosidase from Trichoderma reesei

AU - Makraki, Eleni

AU - Carneiro, Marta G.

AU - Heyam, Alex

AU - Eiso, A. B.

AU - Siegal, Gregg

AU - Hubbard, Roderick E.

N1 - © The Author(s) 2020

PY - 2020/6/19

Y1 - 2020/6/19

N2 - β-glucosidases have received considerable attention due to their essential role in bioethanol production from lignocellulosic biomass. β-glucosidase can hydrolyse cellobiose in cellulose degradation and its low activity has been considered as one of the main limiting steps in the process. Large-scale conversions of cellulose therefore require high enzyme concentration which increases the cost. β-glucosidases with improved activity and thermostability are therefore of great commercial interest. The fungus Trichoderma reseei expresses thermostable cellulolytic enzymes which have been widely studied as attractive targets for industrial applications. Genetically modified β-glucosidases from Trichoderma reseei have been recently commercialised. We have developed an approach in which screening of low molecular weight molecules (fragments) identifies compounds that increase enzyme activity and are currently characterizing fragment-based activators of TrBgl2. A structural analysis of the 55 kDa apo form of TrBgl2 revealed a classical (α/β)8-TIM barrel fold. In the present study we present a partial assignment of backbone chemical shifts, along with those of the Ile (I)-Val (V)-Leu (L) methyl groups of TrBgl2. These data will be used to characterize the interaction of TrBgl2 with the small molecule activators.

AB - β-glucosidases have received considerable attention due to their essential role in bioethanol production from lignocellulosic biomass. β-glucosidase can hydrolyse cellobiose in cellulose degradation and its low activity has been considered as one of the main limiting steps in the process. Large-scale conversions of cellulose therefore require high enzyme concentration which increases the cost. β-glucosidases with improved activity and thermostability are therefore of great commercial interest. The fungus Trichoderma reseei expresses thermostable cellulolytic enzymes which have been widely studied as attractive targets for industrial applications. Genetically modified β-glucosidases from Trichoderma reseei have been recently commercialised. We have developed an approach in which screening of low molecular weight molecules (fragments) identifies compounds that increase enzyme activity and are currently characterizing fragment-based activators of TrBgl2. A structural analysis of the 55 kDa apo form of TrBgl2 revealed a classical (α/β)8-TIM barrel fold. In the present study we present a partial assignment of backbone chemical shifts, along with those of the Ile (I)-Val (V)-Leu (L) methyl groups of TrBgl2. These data will be used to characterize the interaction of TrBgl2 with the small molecule activators.

KW - Enzyme activators

KW - Resonance assignment

KW - TrBgl2

KW - β-glucosidase

UR - http://www.scopus.com/inward/record.url?scp=85086785556&partnerID=8YFLogxK

U2 - 10.1007/s12104-020-09959-2

DO - 10.1007/s12104-020-09959-2

M3 - Article

C2 - 32562251

AN - SCOPUS:85086785556

SN - 1874-2718

JO - Biomolecular NMR assignments

JF - Biomolecular NMR assignments

ER -