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Vutharadhi S, Ranganatha KS, Nadimpalli SK. Momordica charantia seed proteins - Purification, biochemical characterization of a class II α-mannosidase isoenzyme and its interaction with the lectin and protein body membrane. Int J Biol Macromol 2023; 248:126022. [PMID: 37506790 DOI: 10.1016/j.ijbiomac.2023.126022] [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: 05/04/2023] [Revised: 07/05/2023] [Accepted: 07/25/2023] [Indexed: 07/30/2023]
Abstract
Momordica charantia seeds contain a galactose specific lectin and mixture of glycosidases. These bind to lectin-affigel at pH 5.0 and are all eluted at pH 8.0. From the mixture, α-mannosidase was separated by gel filtration (purified enzyme Mr ∼ 238 kDa). In native PAGE (silver staining) it showed three bands that stained with methylumbelliferyl substrate (possible isoforms). Ion exchange chromatography separated two isoforms in 0.5 M eluates and one isoform in 1.0 M eluate. In SDS-PAGE it dissociated to Mr ∼70 and 45 kDa subunits, showing antigenic similarity to jack bean enzyme. MALDI analysis confirmed the 70 kDa band to be α-mannosidase with sequence identity to the genomic sequence of Momordica charantia enzyme (score 83, 29 % sequence coverage). The pH, temperature optima were 5.0 and 60o C respectively. Kinetic parameters KM and Vmax estimated with p-nitrophenyl α-mannopyranoside were 0.85 mM and 12.1 U/mg respectively. Swainsonine inhibits the enzyme activity (IC50 value was 50 nM). Secondary structural analysis at far UV (190-300 nm) showed 11.6 % α-helix and 36.5 % β-sheets. 2.197 mg of the enzyme was found to interact with 3.75 mg of protein body membrane at pH 5.0 and not at pH 8.0 suggesting a pH dependent interaction.
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Affiliation(s)
- Shivaranjani Vutharadhi
- Protein Biochemistry and Glycobiology Laboratory, Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad 500046, Telangana, India
| | - Kavyashree Sakharayapatna Ranganatha
- Protein Biochemistry and Glycobiology Laboratory, Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad 500046, Telangana, India
| | - Siva Kumar Nadimpalli
- Protein Biochemistry and Glycobiology Laboratory, Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad 500046, Telangana, India.
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Sakharayapatna Ranganatha K, Sahoo L, Venugopal A, Nadimpalli SK. Purification, biochemical and biophysical characterization of a zinc dependent α-mannosidase isoform III from Custard Apple (Annona squamosa) seeds. Int J Biol Macromol 2019; 138:1044-1055. [DOI: 10.1016/j.ijbiomac.2019.07.135] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 07/16/2019] [Accepted: 07/22/2019] [Indexed: 10/26/2022]
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Dummy. Dummy. Int J Biol Macromol 2019; 131:734-743. [DOI: 10.1016/j.ijbiomac.2019.03.100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 03/15/2019] [Accepted: 03/16/2019] [Indexed: 11/28/2022]
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Tejavath KK, Nadimpalli SK. Purification and characterization of a class II α-Mannosidase from Moringa oleifera seed kernels. Glycoconj J 2014; 31:485-96. [DOI: 10.1007/s10719-014-9540-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Andreeva N, Trilisenko L, Kulakovskaya T, Dumina M, Eldarov M. Purification and properties of recombinant exopolyphosphatase PPN1 and effects of its overexpression on polyphosphate in Saccharomyces cerevisiae. J Biosci Bioeng 2014; 119:52-6. [PMID: 25034634 DOI: 10.1016/j.jbiosc.2014.06.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Revised: 06/04/2014] [Accepted: 06/11/2014] [Indexed: 11/17/2022]
Abstract
Inorganic polyphosphate performs many regulatory functions in living cells. The yeast exopolyphosphatase PPN1 is an enzyme with multiple cellular localization and probably variable functions. The Saccharomyces cerevisiae strain with overexpressed PPN1 was constructed for large-scale production of the enzyme and for studying the effect of overproduction on polyphosphate metabolism. The ΔPPN1 strain was transformed by the vector containing this gene under a strong constitutive promoter of glycerol aldehyde-triphosphate dehydrogenase of S. cerevisiae. Exopolyphosphatase activity in the transformant increased 28- and 11-fold compared to the ΔPPN1 and parent strains, respectively. The content of acid-soluble polyphosphate decreased ∼6-fold and the content of acid-insoluble polyphosphate decreased ∼2.5-fold in the cells of the transformant compared to the ΔPPN1 strain. The recombinant enzyme was purified. The substrate specificity, cation requirement, and inhibition by heparin were found to be similar to native PPN1. The molecular mass of a subunit (∼33 kD) and the amino acid sequence of the recombinant enzyme were the same as in mature PPN1. The recombinant enzyme was localized mainly in the cytoplasm (40%) and vacuoles (20%). The overproducer strain had no growths defects under phosphate deficiency or phosphate excess. In contrast to the parent strains accumulating polyphosphate, the transformant accumulated orthophosphate under phosphate surplus.
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Affiliation(s)
- Nadeshda Andreeva
- Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences, pr. Nauki 5, Pushchino 142290 Russia
| | - Ludmila Trilisenko
- Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences, pr. Nauki 5, Pushchino 142290 Russia
| | - Tatiana Kulakovskaya
- Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences, pr. Nauki 5, Pushchino 142290 Russia.
| | - Maria Dumina
- Bioengineering Centre, Russian Academy of Sciences, pr. Shestidesyatiletiya Oktyabrya 7-1, Moscow 117312, Russia
| | - Michail Eldarov
- Bioengineering Centre, Russian Academy of Sciences, pr. Shestidesyatiletiya Oktyabrya 7-1, Moscow 117312, Russia
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Characterization of α-mannosidase from Dolichos lablab seeds: Partial amino acid sequencing and N-glycan analysis. Protein Expr Purif 2013; 89:7-15. [DOI: 10.1016/j.pep.2013.02.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2012] [Revised: 02/04/2013] [Accepted: 02/08/2013] [Indexed: 11/20/2022]
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Colditz F, Braun HP. Medicago truncatula proteomics. J Proteomics 2010; 73:1974-85. [PMID: 20621211 DOI: 10.1016/j.jprot.2010.07.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2010] [Revised: 06/28/2010] [Accepted: 07/02/2010] [Indexed: 10/19/2022]
Abstract
Legumes (Fabaceae) are unique in their ability to enter into an elaborate symbiosis with nitrogen-fixing rhizobial bacteria. Rhizobia-legume (RL) symbiosis represents one of the most productive nitrogen-fixing systems and effectively renders the host plants to be more or less independent of other nitrogen sources. Due to high protein content, legumes are among the most economically important crop families. Beyond that, legumes consist of over 16,000 species assigned to 650 genera. In most cases, the genomes of legumes are large and polyploid, which originally did not predestine these plants as genetic model systems. It was not until the early 1990 th that Medicago truncatula was selected as the model plant for studying Fabaceae biology. M. truncatula is closely related to many economically important legumes and therefore its investigation is of high relevance for agriculture. Recently, quite a number of studies were published focussing on in depth characterizations of the M. truncatula proteome. The present review aims to summarize these studies, especially those which focus on the root system and its dynamic changes induced upon symbiotic or pathogenic interactions with microbes.
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Affiliation(s)
- Frank Colditz
- Leibniz University of Hannover, Institute for Plant Genetics, Dept. III, Plant Molecular Biology, Herrenhäuser Str. 2, D-30419 Hannover, Germany.
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Blom H, Reyes F, Carlsson J. Purification and characterization of an alpha-mannosidase from the tropical fruit babaco ( Vasconcellea x heilbornii Cv. babaco). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2008; 56:10872-10878. [PMID: 18939850 DOI: 10.1021/jf800857k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
An alpha-mannosidase (EC 3.2.1.24) present in the lyophilized latex of babaco ( Vasconcellea heilbornii ) has been purified to apparent homogeneity by native PAGE. The purification involves a three-step procedure with successive anion exchange with Q Sepharose HP, lectin affinity chromatography using ConA Sepharose 4B, and gel filtration using Superdex 200 prep grade. The molecular mass was determined to be in the range of 260-280 kDa by Superdex 200 prep grade gel filtration, and isoelectric focusing showed a pI range between 5.85 and 6.55, suggesting different glycosylated isoforms. The optimal temperature for the alpha-mannosidase was determined to lie between 50 and 60 degrees C, and the optimal pH was 4.5 at 50 degrees C. The K(m) value for p-nitrophenyl alpha-mannopyranoside (pNPM) was found to be 1.25 mM and the V(max), 2.4 microkat mg(-1) at 50 degrees C and 1.94 microkat mg(-1) at 40 degrees C. The pure alpha-mannosidase was specific for mannose and did not display activity for any other tested synthetic substrates.
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Affiliation(s)
- Hans Blom
- Department of Physical and Analytical Chemistry, Uppsala University, Uppsala, Sweden.
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Dey PM, Del Campillo E. Biochemistry of the multiple forms of glycosidases in plants. ADVANCES IN ENZYMOLOGY AND RELATED AREAS OF MOLECULAR BIOLOGY 2006; 56:141-249. [PMID: 6320603 DOI: 10.1002/9780470123027.ch3] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Hirata K, Aso Y, Ishiguro M. Properties of alpha-mannosidase partially purified from the apple snail, Pomacea canaliculata. Biosci Biotechnol Biochem 1998; 62:2242-5. [PMID: 9972247 DOI: 10.1271/bbb.62.2242] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Pomacea canaliculata alpha-mannosidase (260 kDa), composed of at least two isoforms with different pI, was partially purified. The activity was maximum at pH 4 and unaltered after incubation at 60 degrees C for 60 min. ZnCl2, CaCl2, NaCl, and SH-reagents increased the activity, while MnCl2 and EDTA inhibited it. The enzyme catalyzed the hydrolysis of alpha 1-2, alpha 1-3, and alpha 1-6 mannosidic linkages.
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Affiliation(s)
- K Hirata
- Laboratory of Protein Chemistry and Engineering, Graduate School of Genetic Resources Technology, Kyushu University, Fukuoka, Japan
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Eneyskaya EV, Kulminskaya AA, Savel'ev AN, Shabalin KA, Golubev AM, Neustroev KN. alpha-Mannosidase from Trichoderma reesei participates in the postsecretory deglycosylation of glycoproteins. Biochem Biophys Res Commun 1998; 245:43-9. [PMID: 9535780 DOI: 10.1006/bbrc.1998.8382] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The 160 kDa alpha-mannosidase (E.C. 3.2.1.24) isolated from culture filtrate of Trichoderma reesei has wide aglycon specificity but cleaves the alpha1 --> 2 and alpha1 --> 3 mannosidic bonds with higher rate than alpha1 --> 6 bond and slowly hydrolyses yeast mannan and 1,6-alpha-mannan. The specific activity of the enzyme and rate constant in the reaction with p-nitrophenyl-alpha-D-mannopyranoside were 0.15 U/mg and 1.62 x 10(-4) microM/min/microg, respectively, at optimal pH 6.5. We have found that in vitro enzyme is able to cleave off 30% of total alpha-mannopyranosyl residues from N- and O-linked glycans of secreted glycoproteins. The activity of the alpha-mannosidase toward glycoproteins in vivo was studied comparing the structures of O- and N-linked glycans of glycoproteins isolated from the cultures growing with and without 1-deoxymannojirimycin, an inhibitor of alpha-mannosidases. Difference in structures of these glycans may be explained by postsecretory deglycosylation catalysed by the alpha-mannosidase.
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Affiliation(s)
- E V Eneyskaya
- Petersburg Nuclear Physics Institute, Gatchina, St. Petersburg, 188350, Russia
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Bagiyan FG, Eneyskaya EV, Kulminskaya AA, Savel'ev AN, Shabalin KA, Neustroev KN. The action of alpha-mannosidase from Oerskovia sp. on the mannose-rich O-linked sugar chains of glycoproteins. EUROPEAN JOURNAL OF BIOCHEMISTRY 1997; 249:286-92. [PMID: 9363781 DOI: 10.1111/j.1432-1033.1997.t01-1-00286.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Alpha-mannosidase was isolated from the culture liquid of Oerskovia sp. The purified enzyme had a molecular mass of 480 kDa and comprises four identical subunits. The enzyme cleaves bonds in side chains of yeast mannan (Km = 0.08 mM, k(cat) = 1.02 micromol x min(-1) x mg(-1)) and reveals a low activity towards p-nitrophenyl alpha-D-mannopyranoside. The alpha-mannosidase is a Ca2+-dependent enzyme and is inhibited by EDTA. The enzyme possess no endo-mannosidase activity releasing only mannose in the reaction with the inversion of anomeric configuration and could be classified as exo-alpha-mannanase. The enzyme revealed a high deglycosylating activity towards the short mannose-rich O-linked carbohydrate chains of glycoproteins.
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Affiliation(s)
- F G Bagiyan
- Petersburg Nuclear Physics Institute, Molecular and Radiation Biophysics Division, St Petersburg, Russia
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Vega R, Domínguez A. Partial characterization of α-mannosidase fromYarrowia lipolytica. J Basic Microbiol 1988. [DOI: 10.1002/jobm.3620280606] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Lucas L, Martin-Barrientos J, Cabezas JA. alpha-D-mannosidase forms in chicken liver. THE INTERNATIONAL JOURNAL OF BIOCHEMISTRY 1984; 16:207-212. [PMID: 6705971 DOI: 10.1016/0020-711x(84)90074-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Two forms (I and II) of alpha-D-mannosidase have been separated by ion-exchange chromatography on DEAE-cellulose from embryonic chicken liver. A third form (III), which is absent in embryos, was also separated from 4-day-old chickens. The optimum pH of form I is at pH 5.0. Form II is named "neutral" because it shows maximal activity at pH 6.5. The optimum pH of form III is 4.5. Forms I and III are heat-stable at 50 degrees C for 1 hr, whereas form II is very unstable under these conditions. Zn2+ and Mg2+ have been found to increase the alpha-D-mannosidase activity of forms I and II. In contrast, Co2+ increases mannosidase I activity and inhibits form II from 18-day-old embryos. alpha-Methyl-D-mannoside, N-acetyl-D-mannosamine and D-mannosamine were found to be inhibitors of both forms I and II. "Neutral" mannosidase was also inhibited by chloride. Competitive inhibition by D-mannose was also studied and Ki values are given.
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Kara UA, Kindl H. Membranes of protein bodies. I. Isolation from cotyledons of germinating cucumber seeds. EUROPEAN JOURNAL OF BIOCHEMISTRY 1982; 121:533-8. [PMID: 7056255 DOI: 10.1111/j.1432-1033.1982.tb05819.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Protein bodies were prepared from cotyledons of germinating seeds of cucumber (Cucumis sativus) in different ways: the organelles either obtained from protoplasts by lysis or from cotyledons by mechanical disintegration were separated on sucrose-density gradients. In addition, a non-aqueous procedure was employed to isolate protein bodies. Marker proteins indicative of membranes of other organelles were carefully assayed. By this means contaminations in the purified protein-body fractions could be ruled out. Isolated protein bodies were separated into crystalloids, matrix, and membranes. The membranes were purified and characterized according to their equilibrium density (rho = 1.20 kg/l) on sucrose gradients by flotation or sedimentation. Protein-body membranes labelled in the phospholipid moiety were prepared and analyzed after application of [methyl-14C] choline or [32P] phosphate in vivo.
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