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Curiel JA, de la Bastida AR, Langa S, Peirotén Á, Landete JM. Characterization and stabilization of GluLm and its application to deglycosylate dietary flavonoids and lignans. Appl Microbiol Biotechnol 2024; 108:80. [PMID: 38189949 PMCID: PMC10774645 DOI: 10.1007/s00253-023-12956-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 10/30/2023] [Accepted: 11/09/2023] [Indexed: 01/09/2024]
Abstract
This study describes the characterization of the recombinant GH3 aryl-β-glucosidase "GluLm" from Limosilactobacillus mucosae INIA P508, followed by its immobilization on an agarose support with the aim of developing an efficient application to increase the availability and concentration of flavonoid and lignan aglycones in a vegetal beverage. In previous studies, heterologous GluLm-producing strains demonstrated a great capacity to deglycosylate flavonoids. Nevertheless, the physicochemical properties and substrate spectrum of the enzyme remained unknown up to now. A high production of purified GluLm was achieved (14 mg L-1). GluLm exhibited optimal activity at broad ranges of pH (5.0-8.0) and temperature (25-60°C), as well as high affinity (Km of 0.10 mmol L-1) and specific constant (86554.0 mmol L-1 s-1) against p-nitrophenyl-β-D-glucopyranoside. Similar to other GH3 β-glucosidases described in lactic acid bacteria, GluLm exhibited β-xylosidase, β-galactosidase, and β-fucosidase activities. However, this study has revealed for the first time that a GH3 β-glucosidase is capable to hydrolyze different families of glycosylated phenolics such as flavonoids and secoiridoids. Although it exhibited low thermal stability, immobilization of GluLm improved its thermostability and allowed the development of a beverage based on soybeans and flaxseed extract with high concentration of bioactive isoflavone (daidzein, genistein), lignan (secoisolariciresinol, pinoresinol, and matairesinol), and other flavonoid aglycones. KEY POINTS: • Limosilactobacillus mucosae INIA P508 GluLm was purified and biochemically characterized • Immobilized GluLm efficiently deglycosylated flavonoids and lignans from a vegetal beverage • A viable application to produce vegetal beverages with a high content of aglycones is described.
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Affiliation(s)
- José Antonio Curiel
- Food Technology Department, National Institute for Agricultural and Food Research and Technology (INIA-CSIC), Carretera de La Coruña Km 7.5, 28040, Madrid, Spain.
| | - Ana Ruiz de la Bastida
- Food Technology Department, National Institute for Agricultural and Food Research and Technology (INIA-CSIC), Carretera de La Coruña Km 7.5, 28040, Madrid, Spain
| | - Susana Langa
- Food Technology Department, National Institute for Agricultural and Food Research and Technology (INIA-CSIC), Carretera de La Coruña Km 7.5, 28040, Madrid, Spain
| | - Ángela Peirotén
- Food Technology Department, National Institute for Agricultural and Food Research and Technology (INIA-CSIC), Carretera de La Coruña Km 7.5, 28040, Madrid, Spain
| | - José María Landete
- Food Technology Department, National Institute for Agricultural and Food Research and Technology (INIA-CSIC), Carretera de La Coruña Km 7.5, 28040, Madrid, Spain
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2
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Muñoz R, Rivas BDL, Rodríguez H, Esteban-Torres M, Reverón I, Santamaría L, Landete JM, Plaza-Vinuesa L, Sánchez-Arroyo A, Jiménez N, Curiel JA. Food phenolics and Lactiplantibacillus plantarum. Int J Food Microbiol 2024; 412:110555. [PMID: 38199014 DOI: 10.1016/j.ijfoodmicro.2023.110555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 12/21/2023] [Accepted: 12/27/2023] [Indexed: 01/12/2024]
Abstract
Phenolic compounds are important constituents of plant food products. These compounds play a key role in food characteristics such as flavor, astringency and color. Lactic acid bacteria are naturally found in raw vegetables, being Lactiplantibacillus plantarum the most commonly used commercial starter for the fermentation of plant foods. Hence, the metabolism of phenolic compounds of L. plantarum has been a subject of study in recent decades. Such studies confirm that L. plantarum, in addition to presenting catalytic capacity to transform aromatic alcohols and phenolic glycosides, exhibits two main differentiated metabolic routes that allow the biotransformation of dietary hydroxybenzoic and hydroxycinnamic acid-derived compounds. These metabolic pathways lead to the production of new compounds with new biological and organoleptic properties. The described metabolic pathways involve the action of specialized esterases, decarboxylases and reductases that have been identified through genetic analysis and biochemically characterized. The purpose of this review is to provide a comprehensive and up-to-date summary of the current knowledge of the metabolism of food phenolics in L. plantarum.
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Affiliation(s)
- Rosario Muñoz
- Laboratorio de Biotecnología Bacteriana, Instituto de Ciencia y Tecnología de Alimentos y Nutrición (ICTAN), CSIC, Madrid, Spain.
| | - Blanca de Las Rivas
- Laboratorio de Biotecnología Bacteriana, Instituto de Ciencia y Tecnología de Alimentos y Nutrición (ICTAN), CSIC, Madrid, Spain
| | - Héctor Rodríguez
- Laboratorio de Biotecnología Bacteriana, Instituto de Ciencia y Tecnología de Alimentos y Nutrición (ICTAN), CSIC, Madrid, Spain
| | - María Esteban-Torres
- Laboratorio de Biotecnología Bacteriana, Instituto de Ciencia y Tecnología de Alimentos y Nutrición (ICTAN), CSIC, Madrid, Spain
| | - Inés Reverón
- Laboratorio de Biotecnología Bacteriana, Instituto de Ciencia y Tecnología de Alimentos y Nutrición (ICTAN), CSIC, Madrid, Spain
| | - Laura Santamaría
- Laboratorio de Biotecnología Bacteriana, Instituto de Ciencia y Tecnología de Alimentos y Nutrición (ICTAN), CSIC, Madrid, Spain
| | - José Maria Landete
- Laboratorio de Biotecnología Bacteriana, Instituto de Ciencia y Tecnología de Alimentos y Nutrición (ICTAN), CSIC, Madrid, Spain
| | - Laura Plaza-Vinuesa
- Laboratorio de Biotecnología Bacteriana, Instituto de Ciencia y Tecnología de Alimentos y Nutrición (ICTAN), CSIC, Madrid, Spain
| | - Ana Sánchez-Arroyo
- Laboratorio de Biotecnología Bacteriana, Instituto de Ciencia y Tecnología de Alimentos y Nutrición (ICTAN), CSIC, Madrid, Spain
| | - Natalia Jiménez
- Laboratorio de Biotecnología Bacteriana, Instituto de Ciencia y Tecnología de Alimentos y Nutrición (ICTAN), CSIC, Madrid, Spain
| | - José Antonio Curiel
- Laboratorio de Biotecnología Bacteriana, Instituto de Ciencia y Tecnología de Alimentos y Nutrición (ICTAN), CSIC, Madrid, Spain.
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Metabolomic and transcriptional profiling of oleuropein bioconversion into hydroxytyrosol during table olive fermentation by Lactiplantibacillus plantarum. Appl Environ Microbiol 2022; 88:e0201921. [PMID: 35170988 PMCID: PMC8939334 DOI: 10.1128/aem.02019-21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
This study aims to elucidate the mechanisms responsible for the bioconversion of oleuropein into low-molecular-weight phenolic compounds in two selected Lactiplantibacillus plantarum strains, namely, C11C8 and F3.5, under stress brine conditions and at two different temperatures (16°C and 30°C). For this purpose, we adopted an experimental strategy that combined high-resolution mass spectrometry, in silico functional analysis of glycoside hydrolase family 1 (GH1)-encoding candidate genes, and gene expression studies. The oleuropein hydrolysis products and the underlying enzymatic steps were identified, and a novel putative bgl gene was detected, using seven strains belonging to the same species as controls. According to metabolomic analysis, a new intermediate compound (decarboxymethyl dialdehydic form of oleuropein aglycone) was revealed. In addition, strain C11C8 showed a decrease in the oleuropein content greater than that of the F3.5 strain (30% versus 15%) at a temperature of 16°C. The highest increase in hydroxytyrosol was depicted by strain C11C8 at a temperature of 30°C. PCR assays and sequencing analyses revealed that both strains possess bglH1, bglH2, and bglH3 genes. Furthermore, a reverse transcription-PCR (RT-PCR) assay showed that bglH3 is the only gene transcribed under all tested conditions, while bglH2 is switched off in strain C11C8 grown at cold temperatures, and no transcription was detected for the bglH1 gene. The bglH3 gene encodes a 6-phospho-β-glucosidase, suggesting how phospho-β-glucosidase activity could belong to the overall metabolic strategy undertaken by L. plantarum to survive in an environment poor in free sugars, like table olives. IMPORTANCE In the present study, a new candidate gene, bglH3, responsible for the β-glucosidase-positive phenotype in L. plantarum was detected, providing the basis for the future marker-assisted selection of L. plantarum starter strains with a β-glucosidase-positive phenotype. Furthermore, the ability of selected strains to hydrolyze oleuropein at low temperatures is important for application as starter cultures on an industrial scale.
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Glycoside hydrolase family 2 exo-β-1,6-galactosidase LpGal2 from Lactobacillus plantarum: Cloning, expression, and enzymatic characterization. Process Biochem 2021. [DOI: 10.1016/j.procbio.2021.01.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Delgado-Fernandez P, Plaza-Vinuesa L, Lizasoain-Sánchez S, de Las Rivas B, Muñoz R, Jimeno ML, García-Doyagüez E, Moreno FJ, Corzo N. Hydrolysis of Lactose and Transglycosylation of Selected Sugar Alcohols by LacA β-Galactosidase from Lactobacillus plantarum WCFS1. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:7040-7050. [PMID: 32476420 DOI: 10.1021/acs.jafc.0c02439] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The production, biochemical characterization, and carbohydrate specificity of LacA β-galactosidase (locus lp_3469) belonging to the glycoside hydrolase family 42 from the probiotic organism Lactobacillus plantarum WCFS1 are addressed. The β-d-galactosidase activity was maximal in the pH range of 4.0-7.0 and at 30-37 °C. High hydrolysis capacity toward the β(1 → 4) linkages between galactose and glucose (lactose) or fructose (lactulose) was found. High efficiency toward galactosyl derivative formation was observed when lactose and glycerol, xylitol, or erythritol were used. Galactosyl derivatives of xylitol were characterized for the first time as 3-O-β-d-galactopyranosyl-xylitol and 1-O-β-d-galactopyranosyl-xylitol, displaying high preference of LacA β-galactosidase for the transfer of galactosyl residues from lactose to the C1 or C3 hydroxyl group of xylitol. These results indicate the feasibility of using LacA β-galactosidase for the synthesis of different galactosyl-polyols, which could be promising candidates for beneficial and appealing functional and technological applications such as novel prebiotics or hypocaloric sweeteners.
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Affiliation(s)
- Paloma Delgado-Fernandez
- Instituto de Investigación en Ciencias de la Alimentación, CIAL (CSIC-UAM), Nicolás Cabrera 9, 28049 Madrid, Spain
| | - Laura Plaza-Vinuesa
- Instituto de Ciencia y Tecnología de Alimentos y Nutrición, ICTAN (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
| | - Silvia Lizasoain-Sánchez
- Instituto de Investigación en Ciencias de la Alimentación, CIAL (CSIC-UAM), Nicolás Cabrera 9, 28049 Madrid, Spain
| | - Blanca de Las Rivas
- Instituto de Ciencia y Tecnología de Alimentos y Nutrición, ICTAN (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
| | - Rosario Muñoz
- Instituto de Ciencia y Tecnología de Alimentos y Nutrición, ICTAN (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
| | - María Luisa Jimeno
- Centro de Química Orgánica "Lora Tamayo" (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
| | - Elisa García-Doyagüez
- Centro de Química Orgánica "Lora Tamayo" (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
| | - F Javier Moreno
- Instituto de Investigación en Ciencias de la Alimentación, CIAL (CSIC-UAM), Nicolás Cabrera 9, 28049 Madrid, Spain
| | - Nieves Corzo
- Instituto de Investigación en Ciencias de la Alimentación, CIAL (CSIC-UAM), Nicolás Cabrera 9, 28049 Madrid, Spain
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Unravelling the carbohydrate specificity of MelA from Lactobacillus plantarum WCFS1: An α-galactosidase displaying regioselective transgalactosylation. Int J Biol Macromol 2020; 153:1070-1079. [DOI: 10.1016/j.ijbiomac.2019.10.237] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 10/25/2019] [Accepted: 10/25/2019] [Indexed: 11/20/2022]
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7
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Pino-García RD, Porrelli A, Rus-Fernández P, Segura-Carretero A, Curiel JA. Identification, purification and characterization of a novel glycosidase (BgLm1) from Leuconostoc mesenteroides. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2019.108829] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Yuksekdag Z, Cinar Acar B, Aslim B, Tukenmez U. β-Glucosidase activity and bioconversion of isoflavone glycosides to aglycones by potential probiotic bacteria. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2018. [DOI: 10.1080/10942912.2017.1382506] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Zehranur Yuksekdag
- Faculty of Science, Department of Biology, Gazi University, Ankara, Turkey
| | - Berat Cinar Acar
- Faculty of Science, Department of Biology, Gazi University, Ankara, Turkey
| | - Belma Aslim
- Faculty of Science, Department of Biology, Gazi University, Ankara, Turkey
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Acebrón I, Plaza-Vinuesa L, de Las Rivas B, Muñoz R, Cumella J, Sánchez-Sancho F, Mancheño JM. Structural basis of the substrate specificity and instability in solution of a glycosidase from Lactobacillus plantarum. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2017; 1865:1227-1236. [PMID: 28734976 DOI: 10.1016/j.bbapap.2017.07.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 07/17/2017] [Accepted: 07/17/2017] [Indexed: 01/06/2023]
Abstract
Statistics from structural genomics initiatives reveal that around 50-55% of the expressed, non-membrane proteins cannot be purified and therefore structurally characterized due to solubility problems, which emphasized protein solubility as one of the most serious concerns in structural biology projects. Lactobacillus plantarum CECT 748T produces an aggregation-prone glycosidase (LpBgl) that we crystallized previously. However, this result could not be reproduced due to protein instability and therefore further high-resolution structural analyses of LpBgl were impeded. The obtained crystals of LpBgl diffracted up to 2.48Å resolution and permitted to solve the structure of the enzyme. Analysis of the active site revealed a pocket for phosphate-binding with an uncommon architecture, where a phosphate molecule is tightly bound suggesting the recognition of 6-phosphoryl sugars. In agreement with this observation, we showed that LpBgl exhibited 6-phospho-β-glucosidase activity. Combination of structural and mass spectrometry results revealed the formation of dimethyl arsenic adducts on the solvent exposed cysteine residues Cys211 and Cys292. Remarkably, the double mutant Cys211Ser/Cys292Ser resulted stable in solution at high concentrations indicating that the marginal solubility of LpBgl can be ascribed specifically to these two cysteine residues. The 2.30Å crystal structure of this double mutant showed no disorder around the newly incorporated serine residues and also loop rearrangements within the phosphate-binding site. Notably, LpBgl could be prepared at high yield by proteolytic digestion of the fusion protein LSLt-LpBgl, which raises important questions about potential hysteretic processes upon its initial production as an enzyme fused to a solubility enhancer.
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Affiliation(s)
- Iván Acebrón
- Department of Crystallography and Structural Biology, Institute of Physical Chemistry Rocasolano, CSIC, Serrano 119, E-28006 Madrid, Spain
| | - Laura Plaza-Vinuesa
- Laboratory of Bacterial Biotechnology, Institute of Food Science and Technology and Nutrition (ICTAN), CSIC, Juan de la Cierva 3, E-28006 Madrid, Spain
| | - Blanca de Las Rivas
- Laboratory of Bacterial Biotechnology, Institute of Food Science and Technology and Nutrition (ICTAN), CSIC, Juan de la Cierva 3, E-28006 Madrid, Spain
| | - Rosario Muñoz
- Laboratory of Bacterial Biotechnology, Institute of Food Science and Technology and Nutrition (ICTAN), CSIC, Juan de la Cierva 3, E-28006 Madrid, Spain
| | - J Cumella
- Institute of Medicinal Chemistry (CSIC), Juan de la Cierva 3, E-28006 Madrid, Spain
| | - F Sánchez-Sancho
- Institute of Medicinal Chemistry (CSIC), Juan de la Cierva 3, E-28006 Madrid, Spain
| | - José Miguel Mancheño
- Department of Crystallography and Structural Biology, Institute of Physical Chemistry Rocasolano, CSIC, Serrano 119, E-28006 Madrid, Spain.
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10
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Genetic and biochemical characterization of an oligo-α-1,6-glucosidase from Lactobacillus plantarum. Int J Food Microbiol 2017; 246:32-39. [DOI: 10.1016/j.ijfoodmicro.2017.01.021] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Revised: 11/03/2016] [Accepted: 01/30/2017] [Indexed: 01/01/2023]
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11
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Orrego AH, García C, Mancheño JM, Guisán JM, Lillo MP, López-Gallego F. Two-Photon Fluorescence Anisotropy Imaging to Elucidate the Dynamics and the Stability of Immobilized Proteins. J Phys Chem B 2016; 120:485-91. [DOI: 10.1021/acs.jpcb.5b12385] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Alejandro H. Orrego
- Enzymatic
Engineering Group, Instituto de Catálisis y Petroleoquímica, CSIC, c/Marie Curie 2, 28049 Madrid, Spain
| | - Carolina García
- Fluorescence
Molecular Biophysics Group, Instituto Química Física
“Rocasolano”, CSIC, Serrano 119, 28006 Madrid, Spain
| | - José M. Mancheño
- Crystallography
and Structural Biology Group, Instituto Química Física
“Rocasolano”, CSIC, Serrano 119, 28006 Madrid, Spain
| | - Jose M. Guisán
- Enzymatic
Engineering Group, Instituto de Catálisis y Petroleoquímica, CSIC, c/Marie Curie 2, 28049 Madrid, Spain
| | - M. Pilar Lillo
- Fluorescence
Molecular Biophysics Group, Instituto Química Física
“Rocasolano”, CSIC, Serrano 119, 28006 Madrid, Spain
| | - Fernando López-Gallego
- Heterogeneus
Biocatalysis Group, CIC BiomaGUNE, Pase Miramon 182, 20009 San Sebastian-Donostia, Spain
- IKERBASQUE, Basque Foundation for Science, Bilbao, Spain
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12
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Benavente R, Pessela BC, Curiel JA, de las Rivas B, Muñoz R, Guisán JM, Mancheño JM, Cardelle-Cobas A, Ruiz-Matute AI, Corzo N. Improving Properties of a Novel β-Galactosidase from Lactobacillus plantarum by Covalent Immobilization. Molecules 2015; 20:7874-89. [PMID: 25942370 PMCID: PMC6272498 DOI: 10.3390/molecules20057874] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Revised: 04/17/2015] [Accepted: 04/21/2015] [Indexed: 12/18/2022] Open
Abstract
A novel β-galactosidase from Lactobacillus plantarum (LPG) was over-expressed in E. coli and purified via a single chromatographic step by using lowly activated IMAC (immobilized metal for affinity chromatography) supports. The pure enzyme exhibited a high hydrolytic activity of 491 IU/mL towards o-nitrophenyl β-D-galactopyranoside. This value was conserved in the presence of different divalent cations and was quite resistant to the inhibition effects of different carbohydrates. The pure multimeric enzyme was stabilized by multipoint and multisubunit covalent attachment on glyoxyl-agarose. The glyoxyl-LPG immobilized preparation was over 20-fold more stable than the soluble enzyme or the one-point CNBr-LPG immobilized preparation at 50 °C. This β-galactosidase was successfully used in the hydrolysis of lactose and lactulose and formation of different oligosaccharides was detected. High production of galacto-oligosaccharides (35%) and oligosaccharides derived from lactulose (30%) was found and, for the first time, a new oligosaccharide derived from lactulose, tentatively identified as 3'-galactosyl lactulose, has been described.
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Affiliation(s)
- Rocio Benavente
- Departamento de Biotecnología y Microbiología de Alimentos, Instituto de Investigación en Ciencias de la Alimentación CIAL (CSIC-UAM), Campus de la Universidad Autónoma de Madrid, Nicolás Cabrera 9, 28049 Madrid, Spain.
| | - Benevides C Pessela
- Departamento de Biotecnología y Microbiología de Alimentos, Instituto de Investigación en Ciencias de la Alimentación CIAL (CSIC-UAM), Campus de la Universidad Autónoma de Madrid, Nicolás Cabrera 9, 28049 Madrid, Spain.
| | - Jose Antonio Curiel
- Grupo de Biotecnología Bacteriana, Instituto de Ciencia y Tecnología de Alimentos y Nutrición, (ICTAN-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain.
| | - Blanca de las Rivas
- Grupo de Biotecnología Bacteriana, Instituto de Ciencia y Tecnología de Alimentos y Nutrición, (ICTAN-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain.
| | - Rosario Muñoz
- Grupo de Biotecnología Bacteriana, Instituto de Ciencia y Tecnología de Alimentos y Nutrición, (ICTAN-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain.
| | - Jose Manuel Guisán
- Departamento de Biocatálisis, Instituto de Catálisis y Petroleoquímica (ICP-CSIC), Marie Curie 2, Cantoblanco, 28049 Madrid, Spain.
| | - Jose M Mancheño
- Grupo de Cristalografía y Biología Estructural, Instituto de Química Física Rocasolano (IQFR-CSIC), Serrano 119, 28006 Madrid, Spain.
| | - Alejandra Cardelle-Cobas
- CBQF-Centro de Biotecnologia e Química Fina, Escola Superior de Biotecnologia, Centro Regional do Porto da Universidade Católica Portuguesa, Rua Dr. António Bernardino Almeida, 4200-072 Porto, Portugal.
| | - Ana I Ruiz-Matute
- Departamento de Bioactividad y Análisis de Alimentos, Instituto de Investigación en Ciencias de la Alimentación CIAL (CSIC-UAM), Campus de la Universidad Autónoma de Madrid, Nicolás Cabrera 9, 28049 Madrid, Spain.
| | - Nieves Corzo
- Departamento de Bioactividad y Análisis de Alimentos, Instituto de Investigación en Ciencias de la Alimentación CIAL (CSIC-UAM), Campus de la Universidad Autónoma de Madrid, Nicolás Cabrera 9, 28049 Madrid, Spain.
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13
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Aryl glycosidases from Lactobacillus plantarum increase antioxidant activity of phenolic compounds. J Funct Foods 2014. [DOI: 10.1016/j.jff.2014.01.028] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
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14
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The crystal structure of galactitol-1-phosphate 5-dehydrogenase fromEscherichia coliK12 provides insights into its anomalous behavior on IMAC processes. FEBS Lett 2012; 586:3127-33. [DOI: 10.1016/j.febslet.2012.07.073] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2012] [Revised: 07/16/2012] [Accepted: 07/27/2012] [Indexed: 12/24/2022]
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15
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Beta-glucans improve growth, viability and colonization of probiotic microorganisms. Int J Mol Sci 2012; 13:6026-6039. [PMID: 22754347 PMCID: PMC3382753 DOI: 10.3390/ijms13056026] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2012] [Revised: 05/10/2012] [Accepted: 05/11/2012] [Indexed: 02/07/2023] Open
Abstract
Probiotics, prebiotics and synbiotics are frequently-used components for the elaboration of functional food. Currently, most of the commercialized probiotics are limited to a few strains of the genera Bifidobacteria, Lactobacillus and Streptococcus, most of which produce exopolysaccharides (EPS). This suggests that the beneficial properties of these microorganisms may be related to the biological activities of these biopolymers. In this work we report that a 2-substituted-(1,3)-β-d-glucan of non-dairy bacterial origin has a prebiotic effect on three probiotic strains. Moreover, the presence of this β-d-glucan potentiates in vitro adhesion of the probiotic Lactobacillus plantarum WCFS1 to human intestinal epithelial cells.
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16
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Ping Z, Shi Y, Sun Y, Ma L, Wang M. Protein expression, crystallization and preliminary X-ray crystallographic analysis of chicken interferon-γ receptor α chain. Acta Crystallogr Sect F Struct Biol Cryst Commun 2012; 68:41-4. [PMID: 22232168 PMCID: PMC3253831 DOI: 10.1107/s1744309111046318] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2011] [Accepted: 11/02/2011] [Indexed: 01/07/2023]
Abstract
The activity of interferon-γ (IFN-γ) relies on signal transduction, which is triggered by combination with the receptors interferon-γ receptor α chain (IFNGR1) and β chain (IFNGR2). Native recombinant chicken IFNGR1 (chIFNGR1; residues 25-237) was overexpressed in Escherichia coli, purified by refolding and crystallized using the vapour-diffusion technique. The crystals belonged to space group P6(5)22, with unit-cell parameters a = b = 64.1, c = 216.3 Å, α = β = 90, γ = 120°. The Matthews coefficient and solvent content were calculated as 2.67 Å(3) Da(-1) and 53.97%, respectively. X-ray diffraction data for chIFNGR1 were collected to 2.0 Å resolution at a synchrotron source.
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Affiliation(s)
- Zhiguang Ping
- College of Veterinary Medicine, China Agricultural University, No. 2 Yuan Ming Yuan West Road, Haidian District, Beijing 100193, People’s Republic of China
| | - Yi Shi
- Institute of Microbiology, Chinese Academy of Sciences, No. 1 Beichen West Road, Chaoyang District, Beijing 100101, People’s Republic of China
| | - Yanling Sun
- Institute of Zoology, Chinese Academy of Sciences, No. 1 Beichen West Road, Chaoyang District, Beijing 100101, People’s Republic of China
| | - Liping Ma
- College of Veterinary Medicine, China Agricultural University, No. 2 Yuan Ming Yuan West Road, Haidian District, Beijing 100193, People’s Republic of China
| | - Ming Wang
- College of Veterinary Medicine, China Agricultural University, No. 2 Yuan Ming Yuan West Road, Haidian District, Beijing 100193, People’s Republic of China
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Maischberger T, Leitner E, Nitisinprasert S, Juajun O, Yamabhai M, Nguyen TH, Haltrich D. Beta-galactosidase from Lactobacillus pentosus: purification, characterization and formation of galacto-oligosaccharides. Biotechnol J 2010; 5:838-47. [PMID: 20669255 DOI: 10.1002/biot.201000126] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A novel heterodimeric beta-galactosidase with a molecular mass of 105 kDa was purified from crude cell extracts of the soil isolate Lactobacillus pentosus KUB-ST10-1 using ammonium sulphate fractionation followed by hydrophobic interaction and affinity chromatography. The electrophoretically homogenous enzyme has a specific activity of 97 U(oNPG)/mg protein. The K(m), k(cat) and k(cat)/K(m) values for lactose and o-nitrophenyl-beta-D-galactopyranoside (oNPG) were 38 mM, 20 s(-1), 530 M(-1).s(-1) and 1.67 mM, 540 s(-1), 325 000 M(-1).s(-1), respectively. The temperature optimum of beta-galactosidase activity was 60-65 degrees C for a 10-min assay, which is considerably higher than the values reported for other lactobacillal beta-galactosidases. Mg(2+) ions enhanced both activity and stability significantly. L. pentosus beta-galactosidase was used for the production of prebiotic galacto-oligosaccharides (GOS) from lactose. A maximum yield of 31% GOS of total sugars was obtained at 78% lactose conversion. The enzyme showed a strong preference for the formation of beta-(1-->3) and beta-(1-->6) linkages, and the main transgalactosylation products identified were the disaccharides beta-D-Galp-(1-->6)-D-Glc, beta-D-Galp-(1-->3)-D-Glc, beta-D-Galp-(1-->6)-D-Gal, beta-D-Galp-(1-->3)-D-Gal, and the trisaccharides beta-D-Galp-(1-->3)-D-Lac, beta-D-Galp-(1-->6)-D-Lac.
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Affiliation(s)
- Thomas Maischberger
- BOKU University of Natural Resources and Applied Life Sciences, Vienna, Austria
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18
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Curiel JA, de Las Rivas B, Mancheño JM, Muñoz R. The pURI family of expression vectors: a versatile set of ligation independent cloning plasmids for producing recombinant His-fusion proteins. Protein Expr Purif 2010; 76:44-53. [PMID: 21055470 DOI: 10.1016/j.pep.2010.10.013] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2010] [Revised: 10/29/2010] [Accepted: 10/29/2010] [Indexed: 01/17/2023]
Abstract
A family of restriction enzyme- and ligation-independent cloning vectors has been developed for producing recombinant His-tagged fusion proteins in Escherichia coli. These are based on pURI2 and pURI3 expression vectors which have been previously used for the successful production of recombinant proteins at the milligram scale. The newly designed vectors combines two different promoters (lpp(p)-5 and T7 RNA polymerase Ø10), two different endoprotease recognition sites for the His₆-tag removal (enterokinase and tobacco etch virus), different antibiotic selectable markers (ampicillin and erythromycin resistance), and different placements of the His₆-tag (N- and C-terminus). A single gene can be cloned and further expressed in the eight pURI vectors by using six nucleotide primers, avoiding the restriction enzyme and ligation steps. A unique NotI site was introduced to facilitate the selection of the recombinant plasmid. As a case study, the new vectors have been used to clone the gene coding for the phenolic acid decarboxylase from Lactobacillus plantarum. Interestingly, the obtained results revealed markedly different production levels of the target protein, emphasizing the relevance of the cloning strategy on soluble protein production yield. Efficient purification and tag removal steps showed that the affinity tag and the protease cleavage sites functioned properly. The novel family of pURI vectors designed for parallel cloning is a useful and versatile tool for the production and purification of a protein of interest.
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Affiliation(s)
- José Antonio Curiel
- Laboratorio de Biotecnología Bacteriana, Instituto de Ciencia y Tecnología de Alimentos y Nutrición, CSIC, 28006 Madrid, Spain
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