2019
Exploring the challenges of computational enzyme design by rebuilding the active site of a dehalogenase
JINDAL, Garima; Kateřina SLÁNSKÁ; Veselin KOLEV; Jiří DAMBORSKÝ; Zbyněk PROKOP et. al.Základní údaje
Originální název
Exploring the challenges of computational enzyme design by rebuilding the active site of a dehalogenase
Autoři
JINDAL, Garima (356 Indie); Kateřina SLÁNSKÁ (203 Česká republika, domácí); Veselin KOLEV (840 Spojené státy); Jiří DAMBORSKÝ (203 Česká republika, garant, domácí); Zbyněk PROKOP (203 Česká republika, domácí) a Arieh WARSHEL (840 Spojené státy)
Vydání
Proceedings of the National Academy of Sciences of the United States of America, WASHINGTON, NATL ACAD SCIENCES, 2019, 0027-8424
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: 9.412
Kód RIV
RIV/00216224:14310/19:00108175
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000455086900011
EID Scopus
2-s2.0-85059652342
Klíčová slova anglicky
enzyme design; EVB; transient kinetics; dehalogenase; nucleophilic substitution
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 16. 2. 2023 12:12, Mgr. Michaela Hylsová, Ph.D.
Anotace
V originále
Rational enzyme design presents a major challenge that has not been overcome by computational approaches. One of the key challenges is the difficulty in assessing the magnitude of the maximum possible catalytic activity. In an attempt to overcome this challenge, we introduce a strategy that takes an active enzyme (assuming that its activity is close to the maximum possible activity), design mutations that reduce the catalytic activity, and then try to restore that catalysis by mutating other residues. Here we take as a test case the enzyme haloalkane dehalogenase (DhlA), with a 1,2-dichloroethane substrate. We start by demonstrating our ability to reproduce the results of single mutations. Next, we design mutations that reduce the enzyme activity and finally design double mutations that are aimed at restoring the activity. Using the computational predictions as a guide, we conduct an experimental study that confirms our prediction in one case and leads to inconclusive results in another case with 1,2-dichloroethane as substrate. Interestingly, one of our predicted double mutants catalyzes dehalogenation of 1,2-dibromoethane more efficiently than the wild-type enzyme.
Návaznosti
GA16-07965S, 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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