Redesign of a novel D-allulose 3-epimerase from Staphylococcus aureus for thermostability and efficient biocatalytic production of D-allulose.
D-Allulose 3-epimerase
Site-directed saturation mutagenesis
Structural analysis
TIM-barrel fold
Thermostability
Journal
Microbial cell factories
ISSN: 1475-2859
Titre abrégé: Microb Cell Fact
Pays: England
ID NLM: 101139812
Informations de publication
Date de publication:
25 Mar 2019
25 Mar 2019
Historique:
received:
03
01
2019
accepted:
18
03
2019
entrez:
27
3
2019
pubmed:
27
3
2019
medline:
18
7
2019
Statut:
epublish
Résumé
A novel D-allulose 3-epimerase from Staphylococcus aureus (SaDAE) has been screened as a D-allulose 3-epimerase family enzyme based on its high specificity for D-allulose. It usually converts both D-fructose and D-tagatose to respectively D-allulose and D-sorbose. We targeted potential biocatalysts for the large-scale industrial production of rare sugars. SaDAE showed a high activity on D-allulose with an affinity of 41.5 mM and catalytic efficiency of 1.1 s We redesigned SaDAE for thermostability and biocatalytic production of D-allulose. The research will aid the development of industrial biocatalysts for D-allulose.
Sections du résumé
BACKGROUND
BACKGROUND
A novel D-allulose 3-epimerase from Staphylococcus aureus (SaDAE) has been screened as a D-allulose 3-epimerase family enzyme based on its high specificity for D-allulose. It usually converts both D-fructose and D-tagatose to respectively D-allulose and D-sorbose. We targeted potential biocatalysts for the large-scale industrial production of rare sugars.
RESULTS
RESULTS
SaDAE showed a high activity on D-allulose with an affinity of 41.5 mM and catalytic efficiency of 1.1 s
CONCLUSIONS
CONCLUSIONS
We redesigned SaDAE for thermostability and biocatalytic production of D-allulose. The research will aid the development of industrial biocatalysts for D-allulose.
Identifiants
pubmed: 30909913
doi: 10.1186/s12934-019-1107-z
pii: 10.1186/s12934-019-1107-z
pmc: PMC6432756
doi:
Substances chimiques
Bacterial Proteins
0
psicose
23140-52-5
Fructose
30237-26-4
Carbohydrate Epimerases
EC 5.1.3.-
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
59Subventions
Organisme : National Natural Science Foundation of China
ID : 31771911
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