1
|
Identification of difructose dianhydride I synthase/hydrolase from an oral bacterium establishes a novel glycoside hydrolase family. J Biol Chem 2021; 297:101324. [PMID: 34688653 PMCID: PMC8605356 DOI: 10.1016/j.jbc.2021.101324] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 10/07/2021] [Accepted: 10/07/2021] [Indexed: 11/30/2022] Open
Abstract
Fructooligosaccharides and their anhydrides are widely used as health-promoting foods and prebiotics. Various enzymes acting on β-D-fructofuranosyl linkages of natural fructan polymers have been used to produce functional compounds. However, enzymes that hydrolyze and form α-D-fructofuranosyl linkages have been less studied. Here, we identified the BBDE_2040 gene product from Bifidobacterium dentium (α-D-fructofuranosidase and difructose dianhydride I synthase/hydrolase from Bifidobacterium dentium [αFFase1]) as an enzyme with α-D-fructofuranosidase and α-D-arabinofuranosidase activities and an anomer-retaining manner. αFFase1 is not homologous with any known enzymes, suggesting that it is a member of a novel glycoside hydrolase family. When caramelized fructose sugar was incubated with αFFase1, conversions of β-D-Frup-(2→1)-α-D-Fruf to α-D-Fruf-1,2′:2,1′-β-D-Frup (diheterolevulosan II) and β-D-Fruf-(2→1)-α-D-Fruf (inulobiose) to α-D-Fruf-1,2′:2,1′-β-D-Fruf (difructose dianhydride I [DFA I]) were observed. The reaction equilibrium between inulobiose and DFA I was biased toward the latter (1:9) to promote the intramolecular dehydrating condensation reaction. Thus, we named this enzyme DFA I synthase/hydrolase. The crystal structures of αFFase1 in complex with β-D-Fruf and β-D-Araf were determined at the resolutions of up to 1.76 Å. Modeling of a DFA I molecule in the active site and mutational analysis also identified critical residues for catalysis and substrate binding. The hexameric structure of αFFase1 revealed the connection of the catalytic pocket to a large internal cavity via a channel. Molecular dynamics analysis implied stable binding of DFA I and inulobiose to the active site with surrounding water molecules. Taken together, these results establish DFA I synthase/hydrolase as a member of a new glycoside hydrolase family (GH172).
Collapse
|
2
|
Zhao J, Esque J, André I, O'Donohue MJ, Fauré R. Synthesis of α-l-Araf and β-d-Galf series furanobiosides using mutants of a GH51 α-l-arabinofuranosidase. Bioorg Chem 2021; 116:105245. [PMID: 34482168 DOI: 10.1016/j.bioorg.2021.105245] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 07/29/2021] [Accepted: 08/02/2021] [Indexed: 10/20/2022]
Abstract
The GH-51 α-l-arabinofuranosidase from Thermobacillus xylanilyticus (TxAbf) possesses versatile catalytic properties, displaying not only the ability to hydrolyze glycosidic linkages but also to synthesize furanobiosides in α-l-Araf and β-d-Galf series. Herein, mutants are investigated to evaluate their ability to perform self-condensation, assessing both yield improvements and changes in regioselectivity. Overall yields of oligo-α-l-arabino- and oligo-β-d-galactofuranosides were increased up to 4.8-fold compared to the wild-type enzyme. In depth characterization revealed that the mutants exhibit increased transfer rates and thus a hydrolysis/self-condensation ratio in favor of synthesis. The consequence of the substitution N216W is the creation of an additional binding subsite that provides the basis for an alternative acceptor substrate binding mode. As a result, mutants bearing N216W synthesize not only (1,2)-linked furanobiosides, but also (1,3)- and even (1,5)-linked furanobiosides. Since the self-condensation is under kinetic control, the yield of homo-disaccharides was maximized using higher substrate concentrations. In this way, the mutant R69H-N216W produced oligo-β-d-galactofuranosides in > 70% yield. Overall, this study further demonstrates the potential usefulness of TxAbf mutants for glycosynthesis and shows how these might be used to synthesize biologically-relevant glycoconjugates.
Collapse
Affiliation(s)
- Jiao Zhao
- TBI, Université de Toulouse, CNRS, INRAE, INSA, Toulouse, France
| | - Jérémy Esque
- TBI, Université de Toulouse, CNRS, INRAE, INSA, Toulouse, France
| | - Isabelle André
- TBI, Université de Toulouse, CNRS, INRAE, INSA, Toulouse, France
| | | | - Régis Fauré
- TBI, Université de Toulouse, CNRS, INRAE, INSA, Toulouse, France.
| |
Collapse
|
3
|
Wu X, Chen L, Fan Y, Fu F, Li J, Zhang J. Water Solubility and Surface Property of Alkyl Di-/Tri-/Tetraoxyethyl β-d-Xylopyranosides. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:10361-10372. [PMID: 31487173 DOI: 10.1021/acs.jafc.9b03435] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Alkyl di-/tri-/tetraoxyethyl β-d-xylopyranosides as derivatives of alkyl xylosides are a class of non-ionic sugar-based surfactants. They were stereoselectively synthesized by the Helferich method. Their properties including hydrophilic-lipophilic balance number, water solubility, surface property, foam property, emulsifying property, and thermotropic liquid crystal property were mainly investigated. The results showed that their water solubility decreased with increasing the alkyl chain length and increasing the number of the oligooxyethyl fragment. The critical micelle concentration had a monotonous decreasing trend with increasing the alkyl chain length. Nonyl di-/tri-/tetraoxyethyl β-d-xylopyranosides [-(OCH2CH2)m-, where m = 2, 3, and 4] exhibited the most excellent foaming ability and foam stability. In the n-octane/water system, dodecyl tetraoxyethyl β-d-xylopyranosides and tetradecyl tetraoxyethyl β-d-xylopyranosides had the strongest emulsion ability. In addition, some alkyl di-/tri-/tetraoxyethyl β-d-xylopyranosides had thermotropic liquid crystal properties. Such sugar-based surfactants, alkyl di-/tri-/tetraoxyethyl β-d-xylopyranosides, will be expected to develop for a variety of practical application.
Collapse
Affiliation(s)
- Xiubing Wu
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry , Xiangtan University , Xiangtan , Hunan 411105 , People's Republic of China
| | - Langqiu Chen
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry , Xiangtan University , Xiangtan , Hunan 411105 , People's Republic of China
| | - Yulin Fan
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry , Xiangtan University , Xiangtan , Hunan 411105 , People's Republic of China
| | - Fang Fu
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry , Xiangtan University , Xiangtan , Hunan 411105 , People's Republic of China
| | - Jiping Li
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry , Xiangtan University , Xiangtan , Hunan 411105 , People's Republic of China
| | - Jing Zhang
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry , Xiangtan University , Xiangtan , Hunan 411105 , People's Republic of China
| |
Collapse
|
4
|
Durand J, Biarnés X, Watterlot L, Bonzom C, Borsenberger V, Planas A, Bozonnet S, O’Donohue MJ, Fauré R. A Single Point Mutation Alters the Transglycosylation/Hydrolysis Partition, Significantly Enhancing the Synthetic Capability of an endo-Glycoceramidase. ACS Catal 2016. [DOI: 10.1021/acscatal.6b02159] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Julien Durand
- LISBP, Université de Toulouse, CNRS, INRA, INSA, Toulouse, France
| | - Xevi Biarnés
- Laboratory
of Biochemistry, Institut Químic de Sarrià, Universitat Ramon Llull, Barcelona, Spain
| | - Laurie Watterlot
- LISBP, Université de Toulouse, CNRS, INRA, INSA, Toulouse, France
| | - Cyrielle Bonzom
- LISBP, Université de Toulouse, CNRS, INRA, INSA, Toulouse, France
| | | | - Antoni Planas
- Laboratory
of Biochemistry, Institut Químic de Sarrià, Universitat Ramon Llull, Barcelona, Spain
| | - Sophie Bozonnet
- LISBP, Université de Toulouse, CNRS, INRA, INSA, Toulouse, France
| | | | - Régis Fauré
- LISBP, Université de Toulouse, CNRS, INRA, INSA, Toulouse, France
| |
Collapse
|
5
|
Trincone A. Uncommon Glycosidases for the Enzymatic Preparation of Glycosides. Biomolecules 2015; 5:2160-83. [PMID: 26404386 PMCID: PMC4693232 DOI: 10.3390/biom5042160] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Revised: 09/08/2015] [Accepted: 09/09/2015] [Indexed: 01/11/2023] Open
Abstract
Most of the reports in literature dedicated to the use of glycosyl hydrolases for the preparation of glycosides are about gluco- (α- and β-form) and galacto-sidase (β-form), reflecting the high-availability of both anomers of glucosides and of β-galactosides and their wide-ranging applications. Hence, the idea of this review was to analyze the literature focusing on hardly-mentioned natural and engineered glycosyl hydrolases. Their performances in the synthetic mode and natural hydrolytic potential are examined. Both the choice of articles and their discussion are from a biomolecular and a biotechnological perspective of the biocatalytic process, shedding light on new applicative ideas and on the assortment of biomolecular diversity. The hope is to elicit new interest for the development of biocatalysis and to gather attention of biocatalyst practitioners for glycosynthesis.
Collapse
Affiliation(s)
- Antonio Trincone
- Institute of Biomolecular Chemistry, National Research Council, Via Campi Flegrei, 34, Pozzuoli 80078, Naples, Italy.
| |
Collapse
|
6
|
Pennec A, Daniellou R, Loyer P, Nugier-Chauvin C, Ferrières V. Araf51 with improved transglycosylation activities: one engineered biocatalyst for one specific acceptor. Carbohydr Res 2015; 402:50-5. [DOI: 10.1016/j.carres.2014.10.031] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Revised: 10/10/2014] [Accepted: 10/31/2014] [Indexed: 10/24/2022]
|
7
|
Arab-Jaziri F, Bissaro B, Tellier C, Dion M, Fauré R, O’Donohue MJ. Enhancing the chemoenzymatic synthesis of arabinosylated xylo-oligosaccharides by GH51 α-l-arabinofuranosidase. Carbohydr Res 2015; 401:64-72. [DOI: 10.1016/j.carres.2014.10.029] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Revised: 10/28/2014] [Accepted: 10/30/2014] [Indexed: 02/04/2023]
|
8
|
Overexpression, purification and characterisation of homologous α-l-arabinofuranosidase and endo-1,4-β-d-glucanase in Aspergillus vadensis. ACTA ACUST UNITED AC 2014; 41:1697-708. [DOI: 10.1007/s10295-014-1512-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2014] [Accepted: 09/16/2014] [Indexed: 11/26/2022]
Abstract
Abstract
In the recent past, much research has been applied to the development of Aspergillus, most notably A. niger and A. oryzae, as hosts for recombinant protein production. In this study, the potential of another species, Aspergillus vadensis, was examined. The full length gDNA encoding two plant biomass degrading enzymes, i.e. α-l-arabinofuranosidase (abfB) (GH54) and endo-1,4-β-d-glucanase (eglA) (GH12) from A. vadensis were successfully expressed using the gpdA promoter from A. vadensis. Both enzymes were produced extracellularly in A. vadensis as soluble proteins and successfully purified by affinity chromatography. The effect of culture conditions on the expression of abfB in A. vadensis was examined and optimised to give a yield of 30 mg/L when grown on a complex carbon source such as wheat bran. Characterization of the purified α-l-arabinofuranosidase from A. vadensis showed an optimum pH and temperature of pH 3.5 and 60 °C which concur with those previously reported for A. niger AbfB. Comparative analysis to A. niger AbfA demonstrated interesting differences in temperate optima, pH stability and substrate specificities. The endo-1,4-β-d-glucanase from A. vadensis exhibited a pH and temperature optimum of pH 4.5 and 50 °C, respectively. Comparative biochemical analysis to the orthologous EglA from A. niger presented similar pH and substrate specificity profiles. However, significant differences in temperature optima and stability were noted.
Collapse
|
9
|
Investigating the function of an arabinan utilization locus isolated from a termite gut community. Appl Environ Microbiol 2014; 81:31-9. [PMID: 25304507 DOI: 10.1128/aem.02257-14] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Biocatalysts are essential for the development of bioprocesses efficient for plant biomass degradation. Previously, a metagenomic clone containing DNA from termite gut microbiota was pinpointed in a functional screening that revealed the presence of arabinofuranosidase activity. Subsequent genetic and bioinformatic analysis revealed that the DNA fragment belonged to a member of the genus Bacteroides and encoded 19 open reading frames (ORFs), and annotation suggested the presence of hypothetical transporter and regulator proteins and others involved in the catabolism of pentose sugar. In this respect and considering the phenotype of the metagenomic clone, it was noted that among the ORFs, there are four putative arabinose-specific glycoside hydrolases, two from family GH43 and two from GH51. In this study, a thorough bioinformatics analysis of the metagenomic clone gene cluster has been performed and the four aforementioned glycoside hydrolases have been characterized. Together, the results provide evidence that the gene cluster is a polysaccharide utilization locus dedicated to the breakdown of the arabinan component in pectin and related substrates. Characterization of the two GH43 and the two GH51 glycoside hydrolases has revealed that each of these enzymes displays specific catalytic capabilities and that when these are combined the enzymes act synergistically, increasing the efficiency of arabinan degradation.
Collapse
|
10
|
Bissaro B, Saurel O, Arab-Jaziri F, Saulnier L, Milon A, Tenkanen M, Monsan P, O'Donohue MJ, Fauré R. Mutation of a pH-modulating residue in a GH51 α-l-arabinofuranosidase leads to a severe reduction of the secondary hydrolysis of transfuranosylation products. Biochim Biophys Acta Gen Subj 2014; 1840:626-36. [DOI: 10.1016/j.bbagen.2013.10.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Revised: 09/23/2013] [Accepted: 10/04/2013] [Indexed: 12/18/2022]
|
11
|
Arab-Jaziri F, Bissaro B, Dion M, Saurel O, Harrison D, Ferreira F, Milon A, Tellier C, Fauré R, O’Donohue MJ. Engineering transglycosidase activity into a GH51 α-l-arabinofuranosidase. N Biotechnol 2013; 30:536-44. [DOI: 10.1016/j.nbt.2013.04.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2012] [Revised: 04/12/2013] [Accepted: 04/13/2013] [Indexed: 11/17/2022]
|
12
|
Arab-Jaziri F, Bissaro B, Barbe S, Saurel O, Débat H, Dumon C, Gervais V, Milon A, André I, Fauré R, O’Donohue MJ. Functional roles of H98 and W99 and β2α2 loop dynamics in the α-l
-arabinofuranosidase from Thermobacillus xylanilyticus. FEBS J 2012; 279:3598-3611. [DOI: 10.1111/j.1742-4658.2012.08720.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
13
|
Chlubnova I, Legentil L, Dureau R, Pennec A, Almendros M, Daniellou R, Nugier-Chauvin C, Ferrières V. Specific and non-specific enzymes for furanosyl-containing conjugates: biosynthesis, metabolism, and chemo-enzymatic synthesis. Carbohydr Res 2012; 356:44-61. [PMID: 22554502 DOI: 10.1016/j.carres.2012.04.002] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2012] [Revised: 04/02/2012] [Accepted: 04/03/2012] [Indexed: 11/27/2022]
Abstract
There is no doubt now that the synthesis of compounds of varying complexity such as saccharides and derivatives thereof continuously grows with enzymatic methods. This review focuses on recent basic knowledge on enzymes specifically involved in the biosynthesis and degradation of furanosyl-containing polysaccharides and conjugates. Moreover, and when possible, biocatalyzed approaches, alternative to standard synthesis, will be detailed in order to strengthen the high potential of these biocatalysts to go further with the preparation of rare furanosides. Interesting results will be also proposed with chemo-enzymatic processes based on nonfuranosyl-specific enzymes.
Collapse
Affiliation(s)
- Ilona Chlubnova
- Ecole Nationale Supérieure de Chimie de Rennes, CNRS, UMR 6226, Avenue du Général Leclerc, CS 50837, 35708 Rennes Cedex 7, France
| | | | | | | | | | | | | | | |
Collapse
|
14
|
|
15
|
Muzard M, Aubry N, Plantier-Royon R, O’Donohue M, Rémond C. Evaluation of the transglycosylation activities of a GH 39 β-d-xylosidase for the synthesis of xylose-based glycosides. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.molcatb.2008.10.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
16
|
Marmuse L, Asther M, Fabre E, Navarro D, Lesage-Meessen L, Asther M, O'Donohue M, Fort S, Driguez H. New chromogenic substrates for feruloyl esterases. Org Biomol Chem 2008; 6:1208-14. [DOI: 10.1039/b717742a] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
17
|
Utille JP, Jeacomine I. Synthesis of a library of allyl α-l-arabinofuranosyl-α- or β-d-xylopyranosides; route to higher oligomers. Carbohydr Res 2007; 342:2649-56. [PMID: 17904112 DOI: 10.1016/j.carres.2007.08.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2007] [Revised: 07/08/2007] [Accepted: 08/17/2007] [Indexed: 10/22/2022]
Abstract
Six isomeric disaccharides allyl 2,3,5-tri-O-benzoyl-alpha-l-arabinofuranosyl-alpha-d-xylopyranosides and beta-d-xylopyranosides were synthetized by the stereoselective glycosylation of pure allyl alpha- or beta-d-xylopyranosides with 1-O-acetyl-2,3,5-tri-O-benzoyl-l-arabinofuranose as donor, catalyzed with BF(3).Et(2)O in DCM. Regio- and stereoselective glycosylation with excess of donor furnished almost exclusively the trisaccharides allyl 2,3-di-O-(2,3,5-tri-O-benzoyl-alpha-l-arabinofuranosyl)-alpha- or beta-d-xylopyranosides. Extension of the reaction to the triol beta-d-xylopyranosyl-(1-->4)-1,2,3-tri-O-acetyl-alpha-d-xylopyranose, obtained from the 4-hydroxyl penta-O-acetyl-alpha-xylobiose, gave in the same manner the tetrasaccharide [2,3-di-O-(2,3,5-tri-O-benzoyl-alpha-l-arabinofuranosyl)-beta-d-xylopyranosyl]-(1-->4)-1,2,3-tri-O-acetyl-alpha-d-xylopyranose. The protocol described herein should offer the possibility to produce branched oligosaccharides with a 2,3-di-O-(alpha-l-Ara(f))-beta-d-Xyl(p) block unit at the terminal non-reducing end.
Collapse
Affiliation(s)
- Jean-Pierre Utille
- Centre de Recherches sur les Macromolécules Végétales (CERMAV-CNRS), BP53, 38041 Grenoble cedex 9, France.
| | | |
Collapse
|
18
|
Lopez G, Nugier-Chauvin C, Rémond C, O'Donohue M. Investigation of the specificity of an α-l-arabinofuranosidase using C-2 and C-5 modified α-l-arabinofuranosides. Carbohydr Res 2007; 342:2202-11. [PMID: 17601513 DOI: 10.1016/j.carres.2007.06.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2007] [Revised: 05/25/2007] [Accepted: 06/02/2007] [Indexed: 10/23/2022]
Abstract
The synthesis of three novel glycosyl donors presenting the same scaffold as alpha-L-arabinofuranose but modified at the C-2 or C-5 positions has been achieved. Furthermore, chemoenzymatic syntheses using the alpha-L-arabinofuranosidase AbfD3 and these unnatural furanosides were investigated. The use of the novel p-nitrophenyl furanoside donors revealed that AbfD3 can perform transglycosylation with the C-5 deoxygenated donor but not with the C-2 modified one. These results emphasize the vital role for OH-2 in AbfD3 substrate recognition.
Collapse
Affiliation(s)
- Gérald Lopez
- Ecole Nationale Supérieure de Chimie de Rennes, UMR CNRS 6226 Sciences Chimiques de Rennes, Equipe Synthèse Organique et Systèmes Organisés, Avenue du Général Leclerc, F-35700 Rennes, France
| | | | | | | |
Collapse
|
19
|
Lopez G, Daniellou R, O'Donohue M, Ferrières V, Nugier-Chauvin C. Thioimidoyl furanosides as first inhibitors of the α-l-arabinofuranosidase AbfD3. Bioorg Med Chem Lett 2007; 17:434-8. [PMID: 17071084 DOI: 10.1016/j.bmcl.2006.10.032] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2006] [Revised: 10/12/2006] [Accepted: 10/12/2006] [Indexed: 10/24/2022]
Abstract
Two sets of five thioimidoyl alpha-L-arabino- and beta-D-galactofuranosides were designed, synthesized and subjected to docking studies to evaluate their ability to be recognized by the active site of the alpha-L-arabinofuranosidase AbfD3. Further in vitro assays showed that the targeted furanosides are the first potent inhibitors of this furanosyl hydrolase and that the most efficient one, the thiazolyl alpha-L-arabinofuranoside 1, is a competitive inhibitor having a KI of 1.4 microM.
Collapse
Affiliation(s)
- Gérald Lopez
- Ecole Nationale Supérieure de Chimie de Rennes, UMR CNRS 6226, Team Organic Synthesis and Organized Systems, Avenue du Général Leclerc, F-35700 Rennes, France
| | | | | | | | | |
Collapse
|
20
|
Mastihubová M, Szemesová J, Biely P. The acetates of p-nitrophenyl α-l-arabinofuranoside—Regioselective preparation by action of lipases. Bioorg Med Chem 2006; 14:1805-10. [PMID: 16288881 DOI: 10.1016/j.bmc.2005.10.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2005] [Revised: 10/10/2005] [Accepted: 10/18/2005] [Indexed: 11/18/2022]
Abstract
All possible di-O-acetates and mono-O-acetates of p-nitrophenyl alpha-L-arabinofuranoside were prepared by chemoenzymatic way using lipases. The 2,3-di-O-acetate was obtained in 90% yield by deacetylation of the primary acetyl group of per-O-acetylated p-nitrophenyl alpha-L-arabinofuranoside by Candida cylindracea lipase (CCL) or Candida rugosa lipase (LAY). The 2,5- and 3,5-di-O-acetates were obtained by acetylation of p-nitrophenyl alpha-L-arabinofuranoside by Pseudomonas cepacia lipase (LPS-30) in organic solvents. The 5-O-acetate was regioselectively synthesised in 95% yield by acetylation of p-nitrophenyl alpha-L-arabinofuranoside catalysed by porcine pancreas lipase. Finally, the 2- and 3-O-acetates of p-nitrophenyl alpha-L-arabinofuranoside were obtained in two steps. The enzymatic di-O-acetylation of p-nitrophenyl alpha-L-arabinofuranoside by LPS-30 was followed by enzymatic hydrolysis of the primary acetyl group by CCL or LAY.
Collapse
Affiliation(s)
- Mária Mastihubová
- Institute of Chemistry, Slovak Academy of Sciences, SK-845 38 Bratislava, Slovakia.
| | | | | |
Collapse
|
21
|
Numan MT, Bhosle NB. Alpha-L-arabinofuranosidases: the potential applications in biotechnology. J Ind Microbiol Biotechnol 2005; 33:247-60. [PMID: 16385399 DOI: 10.1007/s10295-005-0072-1] [Citation(s) in RCA: 111] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2005] [Accepted: 12/13/2005] [Indexed: 10/25/2022]
Abstract
Recently, alpha-L-arabinofuranosidases (EC3.2.1.55) have received increased attention primarily due to their role in the degradation of lignocelluloses as well as their positive effect on the activity of other enzymes acting on lignocelluloses. As a result, these enzymes are used in many biotechnological applications including wine industry, clarification of fruit juices, digestion enhancement of animal feedstuffs and as a natural improver for bread. Moreover, these enzymes could be used to improve existing technologies and to develop new technologies. The production, mechanisms of action, classification, synergistic role, biochemical properties, substrate specificities, molecular biology and biotechnological applications of these enzymes have been reviewed in this article.
Collapse
Affiliation(s)
- Mondher Th Numan
- National Institute Of Oceanography, 403004 Dona Poula, Goa, India.
| | | |
Collapse
|
22
|
Euzen R, Lopez G, Nugier-Chauvin C, Ferrières V, Plusquellec D, Rémond C, O’Donohue M. A Chemoenzymatic Approach for the Synthesis of Unnatural Disaccharides ContainingD-Galacto- orD-Fucofuranosides. European J Org Chem 2005. [DOI: 10.1002/ejoc.200500525] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
23
|
Rémond C, Plantier-Royon R, Aubry N, O'Donohue MJ. An original chemoenzymatic route for the synthesis of β-d-galactofuranosides using an α-l-arabinofuranosidase. Carbohydr Res 2005; 340:637-44. [PMID: 15721334 DOI: 10.1016/j.carres.2005.01.016] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2004] [Accepted: 01/20/2005] [Indexed: 11/28/2022]
Abstract
DGalactofuranose is a widespread component of cell wall polysaccharides in bacteria, protozoa and fungi, but is totally absent in mammals. Importantly, galactofuranose is a key constituent of major cell envelope polysaccharides in pathogenic mycobacteria. In this respect, galactofuranose-based glycoconjugates are interesting target molecules for drug design. O-Glycosidases and notably beta-D-galactofuranosidases could be useful tools for the chemoenzymatic synthesis of galactofuranosides, but to date no studies of this type have been reported. Here we report the use of a GH 51 alpha-l-arabinofuranosidase for the synthesis of beta-D-galactofuranosides. We have demonstrated that this enzyme can catalyse both the autocondensation of p-nitrophenyl-beta-D-galactofuranoside and the transgalactofuranosylation of benzyl alpha-D-xylopyranoside, forming p-nitrophenyl beta-D-galactofuranosyl-(1-->2)-beta-D-galactofuranoside and benzyl beta-D-galactofuranosyl-(1-->2)-alpha-D-xylopyranoside, respectively. Both reactions were very regiospecific and the reaction involving benzyl alpha-D-xylopyranoside afforded very high yields (74.8%) of the major product. To our knowledge, this demonstration of chemoenzymatic synthesis of galactofuranosides constitutes the very first use of an O-glycosidase for the synthesis of galactofuranosides.
Collapse
Affiliation(s)
- Caroline Rémond
- Laboratoire de Technologie Enzymatique et Physico-chimie des Agroressources, UMR URCA/INRA FARE, 8 rue Gabriel Voisin, BP 316, F-51688 Reims, France
| | | | | | | |
Collapse
|
24
|
Sakamoto T, Fujita T, Kawasaki H. Transglycosylation catalyzed by a Penicillium chrysogenum exo-1,5-α-l-arabinanase. Biochim Biophys Acta Gen Subj 2004; 1674:85-90. [PMID: 15342117 DOI: 10.1016/j.bbagen.2004.06.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2004] [Revised: 06/03/2004] [Accepted: 06/04/2004] [Indexed: 11/27/2022]
Abstract
Penicillium chrysogenum exo-arabinanase (Abnx), which releases arabinobiose from the nonreducing terminus of alpha-1,5-L-arabinan, was found to possess trans-arabinobiosylation activity on various acceptors, such as aliphatic alcohols, sugars, and sugar alcohols. Abnx was found to prefer primary hydroxyl groups in polyhydric alcohols as acceptors over primary hydroxyl groups in monohydric alcohols. Among the 21 different compounds tested, glycerol was the best acceptor for the enzyme. The transfer product of glycerol was identified as O-alpha-L-arabinosyl-(1-->5)-O-alpha-L-arabinosyl-(1-->1)-glycerol on the basis of the spectral data, fast atom bombardment-mass and 1H- and 13C-NMR. Unlike endo-arabinanases, Abnx catalyzed the hydrolysis of linear arabinan without inverting the anomeric configuration.
Collapse
Affiliation(s)
- Tatsuji Sakamoto
- Laboratory of Fermentation Chemistry, Division of Applied Biochemistry, Graduate School of Agriculture and Biological Science, Osaka Prefecture University, Gakuen-cho 1-1, Sakai, Osaka 599-8531, Japan
| | | | | |
Collapse
|
25
|
Rémond C, Plantier-Royon R, Aubry N, Maes E, Bliard C, O'Donohue MJ. Synthesis of pentose-containing disaccharides using a thermostable α-l-arabinofuranosidase. Carbohydr Res 2004; 339:2019-25. [PMID: 15261595 DOI: 10.1016/j.carres.2004.04.017] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2004] [Accepted: 04/28/2004] [Indexed: 11/19/2022]
Abstract
To date, the enzymatically-catalysed synthesis of pentose-containing compounds has been limited to the production of oligo-beta-(1-->3) and oligo-beta-(1-->4)-linked xylopyranosides. To our knowledge, no such syntheses have involved arabinofuranose or, indeed, any other sugars in the furanose configuration. In this report, we describe the use of a thermostable alpha-L-arabinofuranosidase for the synthesis of p-nitrophenyl alpha-L-arabinofuranosyl-(1-->2)-alpha-L-arabinofuranoside, p-nitrophenyl beta-D-xylopyranosyl-(1-->2)-beta-D-xylopyranoside, p-nitrophenyl beta-D-xylopyranosyl-(1-->3)-beta-D-xylopyranoside and benzyl alpha-D-xylopyranosyl-(1-->2)-alpha-L-arabinofuranoside. Importantly, this latter compound is synthesised in a highly regiospecific reaction, which leads to the production of a single disaccharide.
Collapse
Affiliation(s)
- Caroline Rémond
- Laboratoire de Technologie Enzymatique et Physico-chimie des Agroressources, UMR URCA/INRA FARE, 8, rue Gabriel Voisin, BP 316, F-51688 Reims, France
| | | | | | | | | | | |
Collapse
|
26
|
Ferchichi M, Rémond C, Simo R, O'Donohue MJ. Investigation of the functional relevance of the catalytically important Glu(28) in family 51 arabinosidases. FEBS Lett 2003; 553:381-6. [PMID: 14572655 DOI: 10.1016/s0014-5793(03)01061-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The alpha-L-arabinofuranosidase (AbfD3) from Thermobacillus xylanilyticus is a family 51 glycosyl hydrolase. According to classification hierarchy, family 51 belongs to clan GH-A. While the major GH-A motifs, the catalytic acid-base and nucleophile, are conserved in AbfD3, a third catalytically important residue (Glu(28)) does not appear to be analogous to any known GH-A motif. To evaluate the importance of Glu(28), bioinformatics analyses and site-saturation mutagenesis were performed. The results indicate that Glu(28) forms part of a family 51 arabinosidase motif which might be functionally homologous to a conserved N-terminal motif found in exo-acting enzymes from families 1 and 5. Importantly, the data reveal that Glu(28) is a key determinant of substrate recognition in the -1 subsite, where it may also play an important role in water-mediated deglycosylation of the glycosyl-enzyme covalent intermediate.
Collapse
Affiliation(s)
- Mounir Ferchichi
- Institut National de la Recherche Agronomique, UMR FARE, 8, rue Gabriel Voisin, P.O. Box 316, 51688 Cedex 2 Reims, France
| | | | | | | |
Collapse
|
27
|
Abstract
Epoxides are attractive intermediates for producing chiral compounds. Important biocatalytic reactions involving epoxides include epoxide hydrolase mediated kinetic resolution, leading to the formation of diols and enantiopure remaining substrates, and enantioconvergent enzymatic hydrolysis, which gives high yields of a single enantiomer from racemic mixtures. Epoxides can also be converted by non-hydrolytic enantioselective ring opening, using alternative anionic nucleophiles; these reactions can be catalysed by haloalcohol dehalogenases. The differences in scope of these enzymatic conversions is related to their different catalytic mechanisms, which involve, respectively, covalent catalysis with an aspartate carboxylate as the nucleophile and non-covalent catalysis with a tyrosine that acts as a general acid-base. The emerging new possibilities for enantioselective biocatalytic conversion of epoxides suggests that their importance in green chemistry will grow.
Collapse
Affiliation(s)
- Erik J de Vries
- Department of Biochemistry, Groningen Biomolecular Sciences & Biotechnology Institute, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
| | | |
Collapse
|