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Panwar D, Shubhashini A, Chaudhari SR, Prashanth KVH, Kapoor M. GH36 α-galactosidase from Lactobacillus plantarum WCFS1 synthesize Gal-α-1,6 linked prebiotic α-galactooligosaccharide by transglycosylation. Int J Biol Macromol 2019; 144:334-342. [PMID: 31816385 DOI: 10.1016/j.ijbiomac.2019.12.032] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Revised: 11/29/2019] [Accepted: 12/04/2019] [Indexed: 02/08/2023]
Abstract
α-Galactosidases are potent industrial glycoside hydrolases which are relatively less explored for their transglycosylation potential, especially from Lactobacillus genera. A GH36 α-galactosidase from Lactobacillus plantarum WCFS1 was cloned and over expressed in Hi-control Escherichia coli BL21(DE3). Ni-NTA affinity gel chromatography resulted in purified α-galactosidase (LpαG; specific activity 3077.35 U mg-1) having a monomeric weight of ~80 kDa with 29.3% yield. Size exclusion chromatography of LpαG showed native molecular mass of ~240.5 kDa. LpαG displayed optimum activity at pH 6 and 37 °C. The Km,Vmax and kcat/Km of LpαG towards pNPαGal were found to be 0.93 mM and 714.3 μmol ml-1 min-1 and 12,075 s-1 mM-1, respectively. LpαG displayed maximum transglycosylation activity towards melibiose substrate (as both donor and acceptor) and synthesized majorly a trisaccharide with 0.26 mg ml-1 yield. Nuclear magnetic resonance (NMR) characterization revealed that trisaccharide consist of only single species of α-linked galactooligosaccharide (manninotriose; α-d-Galp-(1 → 6)-α-d-Galp-(1 → 6)-d-Glcp) with α-(1 → 6) regioselectivity. Manninotriose displayed prebiotic property by supporting the growth of probiotic L. plantarum WCFS1 and Bifidobacteria adolescentis DSM 20083.
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Affiliation(s)
- Deepesh Panwar
- Department of Protein Chemistry and Technology, CSIR-Central Food Technological Research Institute, Mysuru 570 020, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-Human Resource Development Centre (CSIR-HRDC) Campus, Ghaziabad, UP 201 002, India
| | - A Shubhashini
- Department of Protein Chemistry and Technology, CSIR-Central Food Technological Research Institute, Mysuru 570 020, India
| | - Sachin Rama Chaudhari
- Department of Spices and Flavour Sciences, CSIR-Central Food Technological Research Institute, Mysuru 570 020, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-Human Resource Development Centre (CSIR-HRDC) Campus, Ghaziabad, UP 201 002, India
| | - K V Harish Prashanth
- Department of Biochemistry, CSIR-Central Food Technological Research Institute, Mysuru 570 020, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-Human Resource Development Centre (CSIR-HRDC) Campus, Ghaziabad, UP 201 002, India
| | - Mukesh Kapoor
- Department of Protein Chemistry and Technology, CSIR-Central Food Technological Research Institute, Mysuru 570 020, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-Human Resource Development Centre (CSIR-HRDC) Campus, Ghaziabad, UP 201 002, India.
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Enzymatic Conversion of RBCs by α-N-Acetylgalactosaminidase from Spirosoma linguale. Enzyme Res 2019; 2019:6972835. [PMID: 31186954 PMCID: PMC6521355 DOI: 10.1155/2019/6972835] [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] [Received: 01/25/2019] [Accepted: 03/06/2019] [Indexed: 11/25/2022] Open
Abstract
Spirosoma linguale is a free-living nonpathogenic organism. Like many other bacteria, S. linguale produces a cell-associated α-N-acetylgalactosaminidase. This work was undertaken to elucidate the nature of this activity. The recombinant enzyme was produced, purified, and examined for biochemical attributes. The purified enzyme was ~50 kDa active as a homodimer in solution. It catalyzed hydrolysis of α-N-acetylgalactosamine at pH 7. Calculated KM was 1.1 mM with kcat of 173 s−1. The described enzyme belongs to the GH109 family.
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The GlaA signal peptide substantially increases the expression and secretion of α-galactosidase in Aspergillus niger. Biotechnol Lett 2018; 40:949-955. [DOI: 10.1007/s10529-018-2540-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Accepted: 03/17/2018] [Indexed: 02/06/2023]
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Isolation of a protease-resistant and pH-stable α-galactosidase displaying hydrolytic efficacy toward raffinose family oligosaccharides from the button mushroom Agaricus bisporus. Int J Biol Macromol 2017. [DOI: 10.1016/j.ijbiomac.2017.06.077] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Hu Y, Tian G, Zhao L, Wang H, Ng TB. A protease-resistant α-galactosidase from Pleurotus djamor with broad pH stability and good hydrolytic activity toward raffinose family oligosaccharides. Int J Biol Macromol 2017; 94:122-130. [DOI: 10.1016/j.ijbiomac.2016.10.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 09/28/2016] [Accepted: 10/03/2016] [Indexed: 11/29/2022]
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Zhu Z, Ye L, Li Q, Gao H, Tan Y, Cai W. Red Cell Immunohematology Research Conducted in China. Transfus Med Rev 2016; 31:102-106. [PMID: 28017498 DOI: 10.1016/j.tmrv.2016.11.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Revised: 11/15/2016] [Accepted: 11/15/2016] [Indexed: 10/20/2022]
Abstract
ABO subtypes and RhD variants are the most studied blood groups in China. Some of the polymorphisms in these two blood groups have direct clinical relevance. Molecular diagnosis of blood group polymorphisms is underway in China. In addition, research groups have developed methods such as screening for blood group mimetic peptides using phage display technology. New reagents, akin to antibodies directed against RhD and ABO, are being investigated using aptamer-based techniques. Progress is also being made in the development of synthetic exoglycosidases for conversion of group A and/or B antigens to group O. Development of methoxy-polyethylene-glycol modified red cells has been successful in vitro but has not reached clinical application. In this paper, we summarize red cell immunohematology research that has been conducted in China.
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Affiliation(s)
- Ziyan Zhu
- Shanghai Blood Center, Shanghai, China.
| | - Luyi Ye
- Shanghai Blood Center, Shanghai, China
| | - Qin Li
- Shanghai Blood Center, Shanghai, China
| | - Hongwei Gao
- Beijing Institute of Transfusion Medicine, Beijing, China
| | - Yinxia Tan
- Beijing Institute of Transfusion Medicine, Beijing, China
| | - Wei Cai
- The Johns Hopkins Hospital, Baltimore, MD, USA
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Improving the Secretory Expression of an -Galactosidase from Aspergillus niger in Pichia pastoris. PLoS One 2016; 11:e0161529. [PMID: 27548309 PMCID: PMC4993465 DOI: 10.1371/journal.pone.0161529] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Accepted: 08/08/2016] [Indexed: 11/21/2022] Open
Abstract
α-Galactosidases are broadly used in feed, food, chemical, pulp, and pharmaceutical industries. However, there lacks a satisfactory microbial cell factory that is able to produce α-galactosidases efficiently and cost-effectively to date, which prevents these important enzymes from greater application. In this study, the secretory expression of an Aspergillus niger α-galactosidase (AGA) in Pichia pastoris was systematically investigated. Through codon optimization, signal peptide replacement, comparative selection of host strain, and saturation mutagenesis of the P1’ residue of Kex2 protease cleavage site for efficient signal peptide removal, a mutant P. pastoris KM71H (Muts) strain of AGA-I with the specific P1’ site substitution (Glu to Ile) demonstrated remarkable extracellular α-galactosidase activity of 1299 U/ml upon a 72 h methanol induction in 2.0 L fermenter. The engineered yeast strain AGA-I demonstrated approximately 12-fold higher extracellular activity compared to the initial P. pastoris strain. To the best of our knowledge, this represents the highest yield and productivity of a secreted α-galactosidase in P. pastoris, thus holding great potential for industrial application.
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Hu Y, Tian G, Geng X, Zhang W, Zhao L, Wang H, Ng TB. A protease-resistant α-galactosidase from Pleurotus citrinopileatus with broad substrate specificity and good hydrolytic activity on raffinose family oligosaccharides. Process Biochem 2016. [DOI: 10.1016/j.procbio.2016.01.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Bakunina IY, Balabanova LA, Pennacchio A, Trincone A. Hooked on α-d-galactosidases: from biomedicine to enzymatic synthesis. Crit Rev Biotechnol 2015; 36:233-45. [PMID: 25394540 DOI: 10.3109/07388551.2014.949618] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
α-d-Galactosidases (EC 3.2.1.22) are enzymes employed in a number of useful bio-based applications. We have depicted a comprehensive general survey of α-d-galactosidases from different origin with special emphasis on marine example(s). The structures of natural α-galactosyl containing compounds are described. In addition to 3D structures and mechanisms of action of α-d-galactosidases, different sources, natural function and genetic regulation are also covered. Finally, hydrolytic and synthetic exploitations as free or immobilized biocatalysts are reviewed. Interest in the synthetic aspects during the next years is anticipated for access to important small molecules by green technology with an emphasis on alternative selectivity of this class of enzymes from different sources.
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Affiliation(s)
- Irina Yu Bakunina
- a G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences , Vladivostok , Russia and
| | - Larissa A Balabanova
- a G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences , Vladivostok , Russia and
| | - Angela Pennacchio
- b Istituto di Chimica Biomolecolare, Consiglio Nazionale delle Ricerche , Pozzuoli , Napoli , Italy
| | - Antonio Trincone
- b Istituto di Chimica Biomolecolare, Consiglio Nazionale delle Ricerche , Pozzuoli , Napoli , Italy
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Kao PH, Lin SR, Chang LS. Interaction of Naja naja atra cardiotoxin 3 with H-trisaccharide modulates its hemolytic activity and membrane-damaging activity. Toxicon 2010; 55:1387-95. [PMID: 20193704 DOI: 10.1016/j.toxicon.2010.02.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2009] [Revised: 01/19/2010] [Accepted: 02/16/2010] [Indexed: 11/16/2022]
Abstract
To address whether saccharide moieties of blood groups A, B and O antigens modulate hemolytic activity of Naja naja atra cardiotoxins (CTXs), the present study was carried out. Unlike other CTX isotoxins, hemolytic activity of CTX3 toward blood group O cholesterol-depleted red blood cells (RBCs) was notably lower than that of blood groups A and B cholesterol-depleted RBCs. Conversion of blood group B RBCs into blood group O RBCs by alpha-galactosidase treatment attenuated the susceptibility for hemolytic activity of CTX3, suggesting that H-antigen affected hemolytic potency of CTX3. Pre-incubation with H-trisaccharide reduced hemolytic activity and membrane-damaging activity of CTX3. Moreover, CTX3 showed a higher binding capability with H-trisaccharide than other CTXs did. CD spectra showed that the binding with H-trisaccharide induced changes in gross conformation of CTX3. Self-quenching studies revealed that oligomerization of CTX3 was affected in the presence of H-trisaccharide. Taken together, our data suggest that the binding of CTX3 with H-antigen alters its membrane-bound mode, thus reducing its hemolytic activity toward blood group O cholesterol-depleted RBCs.
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Affiliation(s)
- Pei-Hsiu Kao
- Institute of Biomedical Sciences, National Sun Yat-Sen University-Kaohsiung Medical University Joint Research Center, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
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A novel protease-resistant α-galactosidase with high hydrolytic activity from Gibberella sp. F75: gene cloning, expression, and enzymatic characterization. Appl Microbiol Biotechnol 2009; 83:875-84. [DOI: 10.1007/s00253-009-1939-2] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2008] [Revised: 02/12/2009] [Accepted: 03/01/2009] [Indexed: 10/21/2022]
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Liu X, Meng K, Wang Y, Shi P, Yuan T, Yang P, Luo H, Bai Y, Yao B. Gene cloning, expression and characterization of an α-galactosidase from Pedobacter nyackensis MJ11 CGMCC 2503 with potential as an aquatic feed additive. World J Microbiol Biotechnol 2009. [DOI: 10.1007/s11274-009-0057-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Human RBCs blood group conversion from A to O using a novel α-N-acetylgalactosaminidase of high specific activity. Sci Bull (Beijing) 2008. [DOI: 10.1007/s11434-008-0248-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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