Pks
Mostrando 1-12 de 137 artigos, teses e dissertações.
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1. Screening and identification of bacteriocin-like inhibitory substances producing lactic acid bacteria from fermented products
Abstract A total of 544 isolates of lactic acid bacteria isolated from fermented products: 451 isolates from fermented products from Thailand and 93 isolated from French fermented products were screened for bacteriocin production. 10 isolates showed antimicrobial activities. Identification of the selected strains by random amplification of polymorphic DNA-po
Food Sci. Technol. Publicado em: 2020-09
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2. Screening and identification of bacteriocin-like inhibitory substances producing lactic acid bacteria from fermented products
Abstract A total of 544 isolates of lactic acid bacteria isolated from fermented products: 451 isolates from fermented products from Thailand and 93 isolated from French fermented products were screened for bacteriocin production. 10 isolates showed antimicrobial activities. Identification of the selected strains by random amplification of polymorphic DNA-po
Food Sci. Technol. Publicado em: 20/12/2019
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3. AVANÇOS RECENTES EM BIOSSÍNTESE COMBINATÓRIA DE POLICETÍDEOS: PERSPECTIVAS E DESAFIOS
Natural products continue to inspire scientists on the search for biological active structures. Recent advances in synthetic biology allow modifying genes to extend structural diversity present on natural products by changing important functional groups guided through genetic information. In this context, polyketides synthases (PKS) represent a class of enzy
Quím. Nova. Publicado em: 2019-01
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4. Bioprospecting Anticancer Compounds from the Marine-Derived Actinobacteria Actinomadura sp. Collected at the Saint Peter and Saint Paul Archipelago (Brazil)
The actinomycete strain BRA 177 was recovered from sediment samples collected at the St. Peter and St. Paul Archipelago, Brazil. This work accessed the ability of this strain, identified as Actinomadura sp., to produce bioactive metabolites by exploring the genome and characterizing chemistry and cytotoxicity of isolated compounds. From the crude ethyl aceta
J. Braz. Chem. Soc.. Publicado em: 2017-03
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5. Effects of polypropylene methyl polyhedral oligomeric silsesquioxanes and polypropylene-grafted maleic anhydride compatibilizers on the properties of palm kernel shell reinforced polypropylene biocomposites
Abstract The effects of the polypropylene-grafted maleic anhydride (PP-g-MAH) and polypropylene methyl polyhedral oligomeric silsesquioxane (PP-POSS) compatibilizers on the mechanical, thermal and physical properties of palm kernel shell (PKS) reinforced polypropylene (PP) were investigated. The production of PP/PKS biocomposites was performed by melt mixing
Polímeros. Publicado em: 04/08/2016
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6. Isolation and expression of two polyketide synthase genes from Trichoderma harzianum 88 during mycoparasitism
Abstract Metabolites of mycoparasitic fungal species such as Trichoderma harzianum 88 have important biological roles. In this study, two new ketoacyl synthase (KS) fragments were isolated from cultured Trichoderma harzianum 88 mycelia using degenerate primers and analysed using a phylogenetic tree. The gene fragments were determined to be present as single
Braz. J. Microbiol.. Publicado em: 2016-06
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7. TRIAGEM METABÓLICA POR PKS E NRPS EM ACTINOBACTÉRIAS ENDOFÍTICAS DE Citrus reticulata
Polyketides and non-ribosomal peptides are natural products widely found in bacteria, fungi and plants. The biological activities associated with these metabolites have attracted special attention in biopharmaceutical studies. Polyketide synthases act similarly to fatty acids synthetases and the whole multi-enzymatic set coordinating precursor and extending
Quím. Nova. Publicado em: 2015-03
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8. Characterisation of pks15/1 in clinical isolates of Mycobacterium tuberculosis from Mexico
Tuberculosis (TB) is an infectocontagious respiratory disease caused by members of the Mycobacterium tuberculosis complex. A 7 base pair (bp) deletion in the locus polyketide synthase (pks)15/1 is described as polymorphic among members of the M. tuberculosis complex, enabling the identification of Euro-American, Indo-Oceanic and Asian lineages. The aim of th
Mem. Inst. Oswaldo Cruz. Publicado em: 2013-09
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9. Mapeamento do potencial biossintético em linhagens de Streptomyces / Mapping the biosynthetic potential in Streptomyces strains
Actinobacteria are important sources of new molecules with biological activities. Streptomyces are the most important genera studied. Such microorganisms carries out among a variety of biosynthetic enzimes, two main groups known as polyketide synthase (PKS) and non ribosomal peptide synthetase (NRPS), both catalyzing the biosynthesis of polyketide and non ri
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/07/2011
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10. Diversidade e atividade antimicrobiana de bactérias isoladas de esponjas marinhas / Diversity and antimicrobial activity of bacteria isolated from marine sponges
Nas últimas décadas um grande número de compostos de interesse biotecnológico, como por exemplo, citotoxinas, agentes antifúngicos, antimicrobianos, antivirais e anticancerígenos têm sido isolados de esponjas marinhas. Entretanto, estudos comprovam que, em muitos casos, os compostos ativos desses animais são oriundos de micro-organismos associados, q
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/05/2011
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11. In silicio expression analysis of PKS genes isolated from Cannabis sativa L.
Cannabinoids, flavonoids, and stilbenoids have been identified in the annual dioecious plant Cannabis sativa L. Of these, the cannabinoids are the best known group of this plant's natural products. Polyketide synthases (PKSs) are responsible for the biosynthesis of diverse secondary metabolites, including flavonoids and stilbenoids. Biosynthetically, the can
Genetics and Molecular Biology. Publicado em: 29/10/2010
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12. Transfecção de DNA de BoHV-5 com fosfato de cálcio em diferentes tipos de cultivos celulares = Transfection of BoHV-5 DNA with calcium phosphate in different types of cell culture / Transfection of BoHV-5 DNA with calcium phosphate in different types of cell culture
As condições para uma transfecção eficaz pelo método de fosfato de cálcio podem variar substancialmente. Neste estudo foi testado o tipo de cultivo celular mais apropriado para transfecção de DNA de herpesvírus bovino tipo 5 (BoHV-5) por esta técnica. Primeiramente foi avaliada a capacidade de multiplicação do BoHV-5 em três diferentes tipos de
Publicado em: 2010