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Dissertations / Theses on the topic 'Seed lectin'

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Published: 3 June 2025

Last updated: 31 July 2025

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1

Deb, Sipra. "Structural studies on the Dolichos biflorus seed lectin." Thesis, University of Portsmouth, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.310414.

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2

Almeida, Alysson Chaves. "Structural and Biological Characterization of a Seed Lectin from Centrolobium tomentosum Guill ex. Benth." Universidade Federal do CearÃ, 2016. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=17033.

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CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior<br>A glycosylated lectin (CTL) with specificity for mannose and glucose has been detected and purified from seeds of Centrolobium tomentosum, a legume plant from the Dalbergieae tribe. CTL was isolated by mannose-Sepharose affinity chromatography. The primary structure was determined by tandem mass spectrometry and consists of 245 amino acids and one N-glycosylation site, possessing high similarity with the lectin Platypodium elegans (PELa) and Pterocarpus angolensis (PAL) derived from the same tribe. Two crystal structures of CTL, wi

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3

Gibbs, Roslyn Victoria. "Recognition of N-acetyl #alpha#-D-galactosamine by the seed lectin from Dolichos biflorus." Thesis, University of Portsmouth, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.304246.

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4

Hagely, Katherine Bray. "Improving soybean seed composition through molecular breeding for Raffinose family oligosaccharides, lectin, and trypsin inhibitors." Thesis, University of Missouri - Columbia, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=3576094.

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5

Ngoepe, Mafora Gloria. "Heterologous expression of a Mukwa (pterocarpus angolensis ) seed lectin (Pal) gene in Escherichia coli, Saccharomyces cerevisiae and Yarrowia lipolytica and construction of Pal recombinant vector for expression in Aspergillus niger." Thesis, University of Limpopo (Turfloop Campus), 2011. http://hdl.handle.net/10386/857.

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Thesis (M.Sc. (Microbiology)) --University of Limpopo, 2011<br>Pterocarpus angolensis seed lectin (PAL), a 28 kDa non glycosylated protein, was initially successfully cloned and expressed in E. coli for ease of high protein production. It was discovered, however, as in similar studies that the recombinant PAL yield in E. coli is low and localized intracellularly. This makes extraction even more difficult because most of the protein is lost either when the cell undergoes lysing or when there is incomplete extraction. As a result of the low yields in E. coli, expression vectors were constructed

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6

Batista, Adelina Braga. "Potential fungicidal and insecticidal proteins present in seeds Dioclea megacarpa Rolfe." Universidade Federal do CearÃ, 2009. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=3789.

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CoordenaÃÃo de AperfeiÃoamento de NÃvel Superior<br>Dioclea megacarpa Rolfe is the correct synonym for D. relexa var. grandiflora. This species belongs to Fabaceae, the legume family. Previous studies, realized in our research group, showed the presence of active proteins for several phytopathogenic fungi in the seeds of this species, among of them Aspergillus niger. Thus, the present work was proposed with the objective of determining the bioactivity of protein(s) from D.megacarpa seeds against fungi, leading to its/their purification and partial characterization and further investigation of

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7

Coelho, Mirela Batista. "Estudo da atividade inseticida e pro-inflamatoria da lectina isolada de sementes de 'Annona coriacea' Mart." [s.n.], 2006. http://repositorio.unicamp.br/jspui/handle/REPOSIP/314522.

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Orientador: Maria Ligia Rodrigues Macedo<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Biologia<br>Made available in DSpace on 2018-08-06T16:03:12Z (GMT). No. of bitstreams: 1 Coelho_MirelaBatista_D.pdf: 2076971 bytes, checksum: 2ad2d77c61af65420ba1c0a4c66e5571 (MD5) Previous issue date: 2006<br>Resumo: As lectinas são um grupo de proteínas e/ou glicoproteínas que se ligam específica e reversivelmente a carboidratos. Estudos têm demonstrado que essas proteínas possuem importantes atividades biológicas como atividade inseticida contra insetos e respostas imunológicas e

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8

de, Oliveira Jose T. A. "Seed lectins : the effects of dietary Phaseolus vulgaris lectins on the general metabolism of monogastric animals." Thesis, University of Aberdeen, 1986. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU367276.

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Rats, mice, pigs, quails, chickens, steers and even some insects are unable to grow properly and in some cases die when fed on diets containing raw kidney bean (Phaseolus vulgaris). Although this problem has been extensively studied the precise mechanism of the interference of dietary antinutritional factors with the growth and health of these animals or insects is still not completely understood. In the present work, the toxic effects of the purified kidney bean globulin lectins upon the general metabolism of the rats were studied. The results of the experiments indicated that both qualitativ

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9

Sphyris, Nathalie. "Studies on agglutinin from Ricinus communis : comparison with ricin." Thesis, University of Warwick, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.283511.

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10

Boleti, Ana Paula de Araujo. "Pouteri, uma proteina lectina-like isolada de sementes de Pouteria torta e seus efeitos citotoxicos, insenticidas e fungicidas." [s.n.], 2008. http://repositorio.unicamp.br/jspui/handle/REPOSIP/314520.

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Orientador: Maria Ligia Rodrigues Macedo<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Biologia<br>Made available in DSpace on 2018-08-10T18:17:13Z (GMT). No. of bitstreams: 1 Boleti_AnaPauladeAraujo_D.pdf: 2432058 bytes, checksum: 91dadd75775ae0ec12b80801a5419e01 (MD5) Previous issue date: 2008<br>Resumo: Este estudo descreve a purificação e a caracterização parcial de uma nova proteína de sementes de Pouteria torta, pertencente à família Sapotaceae. A proteína foi purificada pela combinação de filtração em gel, cromatografias de troca iônica e fase reversa. PAGE-SDS

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11

Boisseau-Tamoudi, Cécile. "Localisation et biosynthese des isolectines des graines de lathyrus ochrus (l. ) dc." Toulouse 3, 1987. http://www.theses.fr/1987TOU30091.

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12

Ho, Yu-Chi, and 何昱圻. "Purification of Carica papaya Seed Lectin by Affinity Chromatography." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/09652347830969675238.

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碩士<br>國立臺灣大學<br>農業化學研究所<br>100<br>Lectins are defined as sugar-binding and cell-agglutinating proteins of non-immune origin. They are ubiquitous in nature, being found in all kinds of organisms, from viruses to humans. Recently, our group isolated an N-Acetyl-D-galactosamine (GalNAc)-specific lectin from the seeds of papaya (Carica papaya), named CPL. In this study, an effective affinity chromatographic method for CPL isolation and purification was established, based on the specificity of CPL. By using two steps affinity chromatography through lactose-Sepharose 6B and GalNAc-Sepharose 6B resin

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13

Sharma, Alok. "Structural Studies On Three-Fold Symmetric Plant Lectins." Thesis, 2010. https://etd.iisc.ac.in/handle/2005/1995.

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Lectins, multivalent carbohydrate-binding proteins of non-immune origin, have the unique ability to decode the information contained in complex carbohydrate structures of glycoproteins and glycolipids by stereo-specifically recognizing and binding to carbohydrates and carbohydrate linkages. The ubiquitous distribution of lectins in all forms of life and viruses along with their involvement in various biological processes such as cell-cell communication, host-pathogen interaction, cancer metastasis, embryogenesis, tissue development and mitogenic stimulation further emphasizes the importance of

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14

Sharma, Alok. "Structural Studies On Three-Fold Symmetric Plant Lectins." Thesis, 2010. http://etd.iisc.ernet.in/handle/2005/1995.

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Lectins, multivalent carbohydrate-binding proteins of non-immune origin, have the unique ability to decode the information contained in complex carbohydrate structures of glycoproteins and glycolipids by stereo-specifically recognizing and binding to carbohydrates and carbohydrate linkages. The ubiquitous distribution of lectins in all forms of life and viruses along with their involvement in various biological processes such as cell-cell communication, host-pathogen interaction, cancer metastasis, embryogenesis, tissue development and mitogenic stimulation further emphasizes the importance of

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15

Chandran, Thyageshwar. "Structural Studies on Non-toxic Homologues of type II Ribosome Inactivating Proteins (RIPs)." Thesis, 2017. http://etd.iisc.ac.in/handle/2005/4222.

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This thesis is concerned with structural and related studies on two non-toxic homologues of type II RIPs. Type II RIPs, which are more toxic than type I, contain an additional lectin chain (B-chain) covalently linked to the catalytic chain (A-chain). The lectin chain facilitates the attachment of the protein to the cell surface, leading to the internalisation of the protein through endocytosis. The catalytic chain has N-glycosidase activity and is made up of three domains, whereas the lectin chain consists of two homologous β-trefoil domains carrying a sugar binding site each. Interestingly, n

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16

Rajasekhar, B. T. "Studies on lectins, lectin receptors and glycosidases from the seeds of Indian lablab beans." Thesis, 1997. http://hdl.handle.net/2009/1265.

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17

Masingi, Nkateko Nhlalala. "Isolation and characterisation of a galactose-specific lectin from maturing seeds of lonchocarpus capassa and molecular cloning of the lectin gene." Thesis, 2010. http://hdl.handle.net/10386/1355.

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Thesis (M.Sc. (Microbiology)) -- University of Limpopo, 2010<br>A 29 kDa lectin that shows specificity for galactose was isolated from Lonchocarpus capassa seeds by a combination of ammonium sulphate precipitation and affinity chromatography on a galactose-sepharose column. The 29 kDa lectin subunit co-purified with a 45 kDa subunit. The N-terminal sequence of the 29 kDa subunit showed homology to other legume lectins while that of 45 kDa subunit was capped. A 360 bp fragment was amplified using degenerate primers designed from internal protein sequences of the 29 kDa subunit and a 5´ RACE sys

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18

"Biochemical and biological characterization of lectins, hemagglutinin and antifungal proteins from seeds." Thesis, 2010. http://library.cuhk.edu.hk/record=b6074856.

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Lectins and hemagglutinins are carbohydrate binding proteins present in a diversity of organisms including humans, vertebrate and invertebrate animals, plants, fungi, and bacteria. They are usually the abundant storage proteins in leguminous plants. They display a host of biological activities such as antitumor, antifungal, antiviral, insecticidal, and antibacterial activities.<br>The biological properties of isolated proteins, including hemagglutinating, antifungal, anti-tumor and HIV-1 reverse transcriptase inhibitory activities, were examined. Their biochemical and biological properties wer

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19

Wang, Teng-Hsu, and 王騰旭. "Studies on an N-acetyl Galactosamine Specific Binding Lectin from Papaya (Carica papaya) Seeds." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/08938836321836979701.

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博士<br>臺灣大學<br>農業化學研究所<br>98<br>Lectins are carbohydrate recognizing proteins which prevanlently exist in most, if not all, living organisms. For a long time, plant lectins were commonly perceived as ‘antinutrients’, mainly due to their adverse effects of causing non-pathogenic food-borne poisoning when not properly cooked before consumption. However, recent studies exhibited that several lectins have been found to possess anticancer properties and showed promising potential as anticancer agents.This study provides a new strategy to detect the specific carbohydrate binding capability of lectins

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20

Mishra, Abhipsa. "Isolation and characterization of lectins from white seeds of Abrus precatorius." Thesis, 2012. http://ethesis.nitrkl.ac.in/3111/1/Soma-Abrus_Dtd.7.05.12.pdf.

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The present study indicates that Abrus precatorius was found to be the potential source for lectins. The lectin called Abrus agglutinin was isolated and characterized from white Abrus seed by the lactamyl sepharose 4B chromatography followed by SDS-PAGE. Lectin bind with the sepharose bead and it was separated out by the process of dialysis. The concentration of protein was measured. Agglutinins are sensitive to RBC of blood. Haemagglutination assay is another method for tittering protein based on their ability to attach to molecules present on the surface of red blood cells. The protein was i

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21

Prasad, Sneha. "Isolation and characterization of lectins from red seeds of Abrus precatorius." Thesis, 2012. http://ethesis.nitrkl.ac.in/3112/1/Sneha-Abrus_Dtd.7.05.2012.pdf.

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The study was done to isolate lectin from red seeds of Abrus precatorius. The protein was purified by using affinity chromatography. The activity of the lectin was determined by haemagglutinin assay and the purity of the protein was tested by Sodium dodecyl sulphate Polyacrylamide Gel Electrophoresis (SDS-PAGE). The activity of lectins is quantified by their ability to agglutinate erythrocyte. The eluted protein exhibited agglutinating activity when reacted against different types of fresh erythrocytes. In SDS-PAGE in affinity 2 bands were observed of 34kD and 31kD of heterotetrameric agglutin

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22

Kung, Yen-Lun, and 龔彥綸. "Purification and Biochemical Properties of an N-acetylgalactosamine Specific Lectin from Papaya (Carica papaya) Seeds." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/01953600833350933720.

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碩士<br>臺灣大學<br>農業化學研究所<br>98<br>Based on our previous study, a novel N-acetylgalactosamine binding protein in papaya seed (Carica papaya lecin, CPL) was discovered by GalNAc-polyacrylamide based enzyme-linked adsorbent assay (Food Chem. 2009, 113: 1218-1225). Papaya seeds with different maturity were collected, and the extracts of seeds in green papaya fruits shows relatively high activity. Further purification of CPL was conducted as following: freeze-dried papaya seeds were ground into powder, extracted with 20 folds (w/v) of 50 mM phosphate buffered saline (pH 7.4) at 4°C overnight, centrifu

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23

Geetha, Rani P. "Characterization Of Carbohydrate Specificity And Primary Structure Of the B-cell Mitogen, Artocarpin, From Artocarpus Integrifolia Seeds." Thesis, 1999. https://etd.iisc.ac.in/handle/2005/1539.

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24

Geetha, Rani P. "Characterization Of Carbohydrate Specificity And Primary Structure Of the B-cell Mitogen, Artocarpin, From Artocarpus Integrifolia Seeds." Thesis, 1999. http://etd.iisc.ernet.in/handle/2005/1539.

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25

LEE, KAI-LIN, and 李凱琳. "Preparation and Characterization of Pumpkin Seed Oil Nano Droplet Emulsion Using Chitosan or Mixed Chitosan and Lecithin as Emulsifiers." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/60460951872880747340.

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碩士<br>東海大學<br>食品科學系<br>105<br>Chitosan（CS, ≧85% deacetylation）was dissolved in 0.1 M acetic acid at 0.5% concentration and adjusted to pH 6.0. Pumpkin seed oil（PSO）was added with different quantities（2, 4, 6, 8 and 10 mL）into 100 mL chitosan solution and pre-emulsified by a Polytron homogenizer （13,500 rpm, 2 min）before passed through a high pressure homogenizer (APV) at different pressure（500,1000 and 1500 bar）and recycled in different passes（1~10 passes）. The emulsions were determined on the droplet size, electrical charge（Zeta potential）and viscosity. Suitable conditions such as PSO quantit

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26

CHIU, SHIH-WEI, and 邱士瑋. "Encapsulation of Crude Extract of Black Soybean Seed Coats by Hydrogenated Lecithin Liposomes: Extraction of Active Constituents, Physicochemical Characteristics, Estimation of Encapsulation Efficiency and Stability." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/b2yvg6.

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