2018
Exploration of Enzyme Diversity by Integrating Bioinformatics with Expression Analysis and Biochemical Characterization
VAŇÁČEK, Pavel; Eva ŠEBESTOVÁ; Petra BABKOVÁ; Šárka NEVOLOVÁ; Lukáš DANIEL et al.Základní údaje
Originální název
Exploration of Enzyme Diversity by Integrating Bioinformatics with Expression Analysis and Biochemical Characterization
Autoři
VAŇÁČEK, Pavel; Eva ŠEBESTOVÁ; Petra BABKOVÁ; Šárka NEVOLOVÁ; Lukáš DANIEL; Pavel DVOŘÁK; Veronika ŠTĚPÁNKOVÁ; Radka CHALOUPKOVÁ; Jan BREZOVSKÝ; Zbyněk PROKOP a Jiří DAMBORSKÝ
Vydání
ACS Catalysis, WASHINGTON, AMER CHEMICAL SOC, 2018, 2155-5435
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10608 Biochemistry and molecular biology
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 12.221
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14310/18:00101756
Organizační jednotka
Přírodovědecká fakulta
UT WoS
EID Scopus
Klíčová slova anglicky
diversity; sequence space; bioinformatics; biocatalyst; biochemical characterization; activity; substrate specificity; haloalkane dehalogenases
Štítky
Změněno: 23. 4. 2024 14:23, Mgr. Michal Petr
Anotace
V originále
Millions of protein sequences are being discovered at an incredible pace, representing an inexhaustible source of biocatalysts. Here, we describe an integrated system for automated in silico screening and systematic characterization of diverse family members. The workflow consists of (i) identification and computational characterization of relevant genes by sequence/structural bioinformatics, (ii) expression analysis and activity screening of selected proteins, and (iii) complete biochemical/biophysical characterization and was validated against the haloalkane dehalogenase family. The sequence-based search identified 658 potential dehalogenases. The subsequent structural bioinformatics prioritized and selected 20 candidates for exploration of protein functional diversity. Out of these 20, the expression analysis and the robotic screening of enzymatic activity provided 8 soluble proteins with dehalogenase activity. The enzymes discovered originated from genetically unrelated Bacteria, Eukaryota, and also Archaea. Overall, the integrated system provided biocatalysts with broad catalytic diversity showing unique substrate specificity profiles, covering a wide range of optimal operational temperature from 20 to 70 degrees C and an unusually broad pH range from 5.7 to 10. We obtained the most catalytically proficient native haloalkane dehalogenase enzyme to date (k(cat)/K-0.5 = 96.8 mM(-1) s(-1) the most thermostable enzyme with melting temperature 71 degrees C, three different cold-adapted enzymes showing dehalogenase activity at near-to-zero temperatures, and a biocatalyst degrading the warfare chemical sulfur mustard. The established strategy can be adapted to other enzyme families for exploration of their biocatalytic diversity in a large sequence space continuously growing due to the use of next-generation sequencing technologies.
Návaznosti
| CZ.02.1.01/0.0/0.0/16_013/0001761, interní kód MU |
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| GA16-06096S, projekt VaV |
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| GA16-07965S, projekt VaV |
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| GA16-24223S, projekt VaV |
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| LM2015047, projekt VaV |
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| LM2015051, projekt VaV |
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| LM2015055, projekt VaV |
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| LO1214, projekt VaV |
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