Legume Lectin
Mostrando 1-12 de 25 artigos, teses e dissertações.
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1. EFEITO ANTI-INFLAMATÓRIO DA LECTINA ISOLADA DE SEMENTES DE Bauhinia bauhinioides MART. / ANTI-INFLAMMATORY EFFECT OF LECTIN ISOLATED FROM SEEDS Bauhinia bauhinioides MART.
Nesse estudo, testou-se o potencial efeito da lectina extraída de sementes de Bauhinia bauhinioides (BbL) para o controle dos eventos vasculares e celulares da inflamação aguda. Pré- tratamento dos animais com BbL na dose de 1 mg/Kg, 30 min antes da injeção de estímulos, inibiu o edema de pata induzido por carragenana (37% em 1 h, 32% em 3 h e 34% em
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/03/2012
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2. CaracterizaÃÃo de lectinas de leguminosas por espectrometria de massa / Caracterizaton of Legume lectins by Mass Spectrometry
A espectrometria de massa à uma tÃcnica amplamente utilizada em todos os setores produtivos. Desde o final dos anos 80 com o surgimento de tÃcnicas de ionizaÃÃo brandas, a espectrometria de massa vem sendo amplamente difundida na anÃlise de biopolÃmeros como Ãcidos graxos, Ãcidos nuclÃicos, oligossacarÃdeos e principalmente proteÃnas. Lectinas s�
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/02/2011
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3. Seeds of Amazonian Fabaceae as a source of new lectins
Seeds from fifty native Amazonian Fabaceae species (representing subfamilies Caesalpinioideae, Mimosoideae and Faboideae) were screened for the presence of new lectins. Their crude protein extracts were assayed for hemagglutinating activity (HA). The protein fractions of Anadenanthera peregrina, Dimorphandra caudata, Ormosia lignivalvis and Swartzia laevicar
Brazilian Journal of Plant Physiology. Publicado em: 2011
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4. Isolamento, caracterização termodinâmica e estudos bioquímicos da lectina de sementes dormentes e de cotilédones de sementes germinadas da leguminosa Macrotyloma axillare
The Macrotyloma axillare seed lectin (LMA) is an N-acetyl-galactosamine (GalNac) specific lectin very important in biothecnology because the specific hemmaglutination by A1 human erythrocytes. In this work, the LMA from dormant and germinated was purified by precipitation techniques and ion exchange chromatography as a new purification technique. Such method
Publicado em: 2008
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5. Isolamento e caracterização da lectina camptosemina extraída das sementes de Camptosema ellipticum
Lectins are (glico) proteins of non immune origin able to cause cellular agglutination or precipitation of glicoconjugates. Legume lectin refers to plant lectins that are found exclusively in species of the Leguminosae family. A notable characteristic of legume lectins is that all their proteins share tertiary structure consisting of a jelly-roll motif, whic
Publicado em: 2007
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6. Legume Lectins: I. Immunological Cross-Reactions between the Enzymic Lectin from Mung Beans and other Well Characterized Legume Lectins 1
A number of well characterized legume lectins including the enzymic lectin from Vigna radiata were examined for immunological relatedness. The immunological cross-reactions observed indicate that most of the legume lectins, including Vigna lectin, are evolutionarily closely related proteins. The possibility that these proteins are homologs with enzymic funct
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7. A nod factor binding lectin with apyrase activity from legume roots
A lectin isolated from the roots of the legume, Dolichos biflorus, binds to Nod factors produced by rhizobial strains that nodulate this plant and has a deduced amino acid sequence with no significant homology to any lectin reported to date. This lectin also is an enzyme that catalyzes the hydrolysis of phosphoanhydride bonds of nucleoside di- and triphospha
The National Academy of Sciences.
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8. An insecticidal N-acetylglucosamine-specific lectin gene from Griffonia simplicifolia (Leguminosae).
Griffonia simplicifolia II, an N-acetylglucosamine-specific legume lectin, has insecticidal activity when fed to the cowpea weevil, Callosobruchus maculatus (F.). A cDNA clone encoding G. simplicifolia II was isolated from a leaf cDNA library, sequenced, and expressed in a bacterial expression system. The recombinant protein exhibited N-acetylglucosamine-bin
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9. Structure of S-lectin, a developmentally regulated vertebrate beta-galactoside-binding protein.
The crystal structure of a 14-kDa bovine spleen S-lectin complexed with the disaccharide N-acetyllactosamine at 1.9-A resolution reveals a surprising structural relationship to legume lectins, despite the lack of sequence homology. Two monomers associate to form an extended beta-sandwich, each with the same jelly roll topology typical of legume lectins but w
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10. Crystal structure of peanut lectin, a protein with an unusual quaternary structure.
The x-ray crystal structure of the tetrameric T-antigen-binding lectin from peanut, M(r) 110,000, has been determined by using the multiple isomorphous replacement method and refined to an R value of 0.218 for 22,155 reflections within the 10- to 2.95-A resolution range. Each subunit has essentially the same characteristic tertiary fold that is found in othe
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11. Identification of a new pea gene, PsNlec1, encoding a lectin-like glycoprotein isolated from the symbiosomes of root nodules.
A 27-kD glycoprotein antigen recognized by monoclonal antibody MAC266 was purified from isolated symbiosomes derived from pea (Pisum sativum) root nodules containing Rhizobium. The N-terminal amino acid sequence was obtained, and the corresponding cDNA clone was isolated by a polymerase chain reaction-based strategy. The clone contained a single open reading
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12. The bark of Robinia pseudoacacia contains a complex mixture of lectins.Characterization of the proteins and the cDNA clones.
Two lectins were isolated from the inner bark of Robinia pseudoacacia (black locust). The first (and major) lectin (called RPbAI) is composed of five isolectins that originate from the association of 31.5- and 29-kD polypeptides into tetramers. In contrast, the second (minor) lectin (called RPbAII) is a hometetramer composed of 26-kD subunits. The cDNA clone