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Vuillemin M, Grimaud F, Claverie M, Rolland-Sabaté A, Garnier C, Lucas P, Monsan P, Dols-Lafargue M, Remaud-Siméon M, Moulis C. A dextran with unique rheological properties produced by the dextransucrase from Oenococcus kitaharae DSM 17330. Carbohydr Polym 2017; 179:10-18. [PMID: 29111031 DOI: 10.1016/j.carbpol.2017.09.056] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 09/11/2017] [Accepted: 09/15/2017] [Indexed: 10/18/2022]
Abstract
A gene encoding a novel dextransucrase was identified in the genome of Oenococcus kitaharae DSM17330 and cloned into E. coli. With a kcat of 691s-1 and a half-life time of 111h at 30°C, the resulting recombinant enzyme -named DSR-OK- stands as one of the most efficient and stable dextransucrase characterized to date. From sucrose, this enzyme catalyzes the synthesis of a quasi linear dextran with a molar mass higher than 1×109g·mol-1 that presents uncommon rheological properties such as a higher viscosity than that of the most industrially used dextran from L. mesenteroides NRRL-B-512F, a yield stress that was never described before for any type of dextran, as well as a gel-like structure. All these properties open the way to a vast array of new applications in health, food/feed, bulk or fine chemicals fields.
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Affiliation(s)
- Marlène Vuillemin
- LISBP, Université de Toulouse, CNRS, INRA, INSA, F-31077 Toulouse, France
| | - Florent Grimaud
- LISBP, Université de Toulouse, CNRS, INRA, INSA, F-31077 Toulouse, France
| | - Marion Claverie
- LISBP, Université de Toulouse, CNRS, INRA, INSA, F-31077 Toulouse, France
| | - Agnès Rolland-Sabaté
- UR1268 Biopolymères Interactions Assemblages, INRA, F-44300 Nantes, France; UMR408 Sécurité et Qualité des Produits d'Origine Végétale, INRA, Université Avignon, F-84000 Avignon, France
| | - Catherine Garnier
- UR1268 Biopolymères Interactions Assemblages, INRA, F-44300 Nantes, France
| | - Patrick Lucas
- Université de Bordeaux, ISVV, EA 4577, Unité de recherche Oenologie, Institut polytechnique de Bordeaux, INRA USC 1366, F-33140 Villenave d'Ornon, France
| | - Pierre Monsan
- Toulouse White Biotechnology Center, Parc Technologique du Canal, F-31520 Ramonville Saint Agnes, France
| | - Marguerite Dols-Lafargue
- Université de Bordeaux, ISVV, EA 4577, Unité de recherche Oenologie, Institut polytechnique de Bordeaux, INRA USC 1366, F-33140 Villenave d'Ornon, France
| | | | - Claire Moulis
- LISBP, Université de Toulouse, CNRS, INRA, INSA, F-31077 Toulouse, France.
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Graebin NG, de Andrades D, Bonin MC, Rodrigues RC, Ayub MA. Dextransucrase immobilized on activated-chitosan particles as a novel biocatalyst. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcatb.2016.12.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Wang S, Sun X, Gao L, Zhang B. Effects of differences between cell-free and cell-associated glucosyltransferases fromLeuconostoc mesenteroideson gluco-oligosaccharides structure. Int J Food Sci Technol 2015. [DOI: 10.1111/ijfs.12804] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Song Wang
- College of Biological Sciences and Biotechnology; Beijing Forestry University; Box 162 Qinghua E Road 35 Beijing China
| | - Xiaoqi Sun
- College of Biological Sciences and Biotechnology; Beijing Forestry University; Box 162 Qinghua E Road 35 Beijing China
| | - Lili Gao
- College of Biological Sciences and Biotechnology; Beijing Forestry University; Box 162 Qinghua E Road 35 Beijing China
| | - Bolin Zhang
- College of Biological Sciences and Biotechnology; Beijing Forestry University; Box 162 Qinghua E Road 35 Beijing China
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Shukla S, Shi Q, Maina NH, Juvonen M, Maijatenkanen, Goyal A. Weissella confusa Cab3 dextransucrase: properties and in vitro synthesis of dextran and glucooligosaccharides. Carbohydr Polym 2013; 101:554-64. [PMID: 24299811 DOI: 10.1016/j.carbpol.2013.09.087] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Revised: 09/20/2013] [Accepted: 09/25/2013] [Indexed: 01/14/2023]
Abstract
Food-derived Weissella spp. have gained attention during recent years as efficient dextran producers. Weissella confusa Cab3 dextransucrase (WcCab3-DSR) was isolated applying PEG fractionation and used for in vitro synthesis of dextran and glucooligosaccharides. WcCab3-DSR had a molar mass of 178 kDa and was activated by Co(2+) and Ca(2+) ions. Glycerol and Tween 80 enhanced enzyme stability, and its half-life at 30°C increased from 10h to 74 h and 59 h, respectively. The (1)H and (13)C NMR spectral analysis of the produced dextran confirmed the presence of main chain α-(1→6) linkages with only 3.0% of α-(1→3) branching, of which some were elongated. An HPSEC analysis in DMSO revealed a high molecular weight of 1.8 × 10(7)g/mol. Glucooligosaccarides produced through the acceptor reaction with maltose, were analyzed with HPAEC-PAD and ESI-MS/MS. They were a homologous series of isomaltooligosaccharides with reducing end maltose units. To the best of our knowledge, this is a first report on native W. confusa dextransucrase.
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Affiliation(s)
- Shraddha Shukla
- Department of Biotechnology, Indian Institute of Technology Guwahati, Guwahati 781 039, Assam, India
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Mohan Rao TJ, Goyal A. Purification, optimization of assay, and stability studies of dextransucrase isolated from Weissella cibaria JAG8. Prep Biochem Biotechnol 2013; 43:329-41. [PMID: 23464916 DOI: 10.1080/10826068.2012.737400] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Dextransucrase-producing (Gen Bank accession no. KC110687) Weissella cibaria JAG8 was isolated from apple. The cell-free extract containing dextransucrase with specific activity of 1.0 U/mg was purified by polyethylene glycol (PEG). A concentration of 33% (v/v) PEG-400 fractionation gave a specific activity of 20.0 U/mg, whereas 15% (w/v) PEG-1500 resulted in a specific activity of 10.6 U/mg. The PEG-400-purified enzyme was further purified by chromatography using a Sephacryl S-300HR column, which resulted in 37-fold purification with 37 U/mg. The non-denaturing sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) of column-purified enzyme showed a single homogenous band of 177 kDa by silver staining. The production of dextran was confirmed by in situ detection of the activity band using periodic acid-Schiff's base staining. The optimum assay conditions for dextransucrase were 35°C, pH 5.4, and 5.0% (w/v) sucrose concentration. The enzyme followed Michaelis-Menten kinetics with Km of 13 mM and Vmax 27.5 U/mg. The enzyme was stable in 10-500 mM sodium acetate buffer, pH 5.4. A 22% increase in enzyme activity was observed with 2 mM magnesium chloride; 64% loss in enzyme activity was observed with 10 mM ethylenediamine tetraacetic acid (EDTA), whereas a complete loss in activity was observed with 5 M urea. The dextransucrase was stable up to 35°C and pH of 5.4 for 1 hr.
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Affiliation(s)
- T Jagan Mohan Rao
- Department of Biotechnology, Indian Institute of Technology Guwahati , Guwahati, Assam, India
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Dextransucrase from the mutant of Pediococcus pentosaceus (PPm) is more stable than the wild type. 3 Biotech 2011; 1:199-205. [PMID: 22558538 PMCID: PMC3339597 DOI: 10.1007/s13205-011-0018-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2011] [Accepted: 07/13/2011] [Indexed: 10/29/2022] Open
Abstract
A comparative study on both wild type and mutant of Pediococcus pentosaceus for dextransucrase activity, its stability, dextran synthesizing activity, antibiotic sensitivity and carbohydrate utilization was performed. The wild type P. pentosaceus had specific activity of 0.58 U/mg whereas the mutant showed that of 1.0 U/mg with 72% enhancement. The antibiogram of 27 antibiotics tested against mutant showed significant differences with 9 antibiotics when compared to wild type. In carbohydrate fermentation profile, trehalose, galactose, maltose, lactose and fructose are metabolized by both the strains, but weakly in case of mutant. Stabilization of purified dextransucrase from wild type and mutant with various stabilizers was studied at 30 and 4 °C. Both enzymes were more stable at 4 °C. Among various stabilizers such as dextran (100 kDa, 10 μg/ml), glycerol (0.5%, v/v), PEG 8000 (10 μg/ml) and Tween 80 (0.5%, v/v), Tween 80 provided maximum stabilization at 4 and 30 °C. The mutant showed better stabilization than that of the wild type at both 30 and 4 °C. The loss of activity at 30 °C after 24 h in wild type and mutant in the presence of Tween 80 was only 34 and 32%, respectively, whereas the loss of activity in control of wild type and mutant was 76 and 59%, respectively. After 15 days at 4 °C, the loss of activity in control of wild type and mutant in the presence of Tween 80 was only 15 and 8%, respectively, whereas at 30 °C, the loss of activity in control of wild type and mutant was 49 and 42% respectively. Half-life of the enzyme with Tween 80 was 28.5 and 33.5 h for wild type and mutant, respectively, at 30 °C and 52.1 and 106.6 days for wild type and mutant respectively, at 4 °C.
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Côté GL, Skory CD. Cloning, expression, and characterization of an insoluble glucan-producing glucansucrase from Leuconostoc mesenteroides NRRL B-1118. Appl Microbiol Biotechnol 2011; 93:2387-94. [DOI: 10.1007/s00253-011-3562-2] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2011] [Revised: 08/16/2011] [Accepted: 08/19/2011] [Indexed: 11/28/2022]
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