Mutation Biologia
Mostrando 25-36 de 47 artigos, teses e dissertações.
-
25. Bases moleculares do efeito do pH na atividas catalítica de duas lisozimas digestivas de Musca domestica (Diptera) / Molecular basis of the pH effect on the catalytic activity of two digestive lysozymes from Musca domestica (Diptera)
Lysozymes are enzymes that are part of the defence mechanism against bacteria, however lysozymes with digestive function are also found in the digestive tract of vertebrates and in the insect midgut. The digestive lysozymes from insects are c type, so they share similar structural and mechanistic characteristics with hen egg-white lysozyme (HEWL). However, t
Publicado em: 2008
-
26. Influence of carbon metabolism and oxygen level on lactose permease localization in Kluyveromyces lactis / Influência do metabolismo de carbono e do nível de oxigênio sobre a localização da permease de lactose em Kluyveromyces lactis
In this work we analyzed the influence of the carbon source, oxygen level and snf1 mutation on the subcelular localization of Lac12GFP permease in the yeast Kluyveromyces lactis. Initially we showed that K. lactis has higher affinity for lactose than for glucose. Our data suggest that the KlSnf1p dependent subcelular localization of Lac12GFP permease was not
Publicado em: 2007
-
27. Variantes de inibidores de [alfa]-amilases selecionados por Phage Display com atividade para [alfa]-amilases do bicudo do algodoeiro (Anthonomus grandis, coleptera: curculionidae)
The cotton boll weevil Anthonomus grandis is an important insect-pest, that causes severe damage in cotton floral fruits and buds. The A. gradis larvae development control is a difficult job because it occurs inside the cotton floral structures. Starch granules from cotton structure are digested by a-amylases secreted to the intestinal lumen. However, a-amyl
Publicado em: 2007
-
28. Análise citopatológica de células de inseto infectadas com baculovírus mutantes
Advances in cell culture techniques allowed the isolation and precise characterization of baculoviruses mutants. The majority of these mutants is derived from the virus AcMNPV, mainly due to its facility of propagation and stability in cell culture. During the purification routine of a recombinant baculovirus, two mutants derived from AcMNPV, vSynlitx1B12P (
Publicado em: 2007
-
29. CARACTERIZAÇÃO MOLECULAR E BIOQUÍMICA DE CEPAS DE Saccharomyces cerevisiae UTILIZADAS NA CARACTERIZAÇÃO MOLECULAR E BIOQUÍMICA
Aiming the molecular characterization of Saccharomyces cerevisiae LBCM 427 strain, selected from fermentations vats of a cachaça distillery, several analysis using polymorphism analysis of DNA for the characterization/discrimination of this and the selvagem strains present in the origin place was used. Results showed that RAPD-PCR, mtDNA, and PCR using comp
Publicado em: 2007
-
30. Estudo das alterações moleculares do gene ABO em doadores de sangue fenotipados como A3 e A3B / ABO gene molecular alterations in blood bank donators phenotyped as A3 e A3B
ABO blood system is the most important blood group in transfusional medicine. Actualy, the blood group type in blood donors and receptors is determined by serological laboratorial tests, complemented by human DNA blood tests that assure the correct blood group determination for the blood donor and receptor, optimizing transfusional safety. Studies on blood s
Publicado em: 2007
-
31. Study of 5alph-reductase 2 and 3beta-hydroxysteroid dehydrogenase 2enzymes on ambiguous genital and prostate cancer / Estudo das enzimas 5 alfa -redutase tipo 2 e 3 beta -hidroxi-esteroide desidrogenase tipo 2 na ambiguidade genital e no cancer de prostata
Not informed
Publicado em: 2006
-
32. Paracoccidioidomicose experimental : infecção e doença em animais infectados por um isolado atipico da cepa Pb18 / Experimental Paracoccidioidomycoses infection and disease in animals infected by an atypical isolated of Pb18 strain
P. brasiliensis is a dimorphic fungus that grows in mycelial phase at room temperature and in yeast form at 35-37°C. Recently, in the Immunopathology Laboratory of the Department of Microbiology and Immunology (Biology Institute/Unicamp), it was observed that a sample of the virulent strain Pb18 grew in a different way from other ones. Preliminary analysis
Publicado em: 2006
-
33. Estudo clinico-molecular e analise da textura epidermica de pacientes com sindrome de Sjogren-Larsson / Molecular genetic study and texture analysis of the epidermis in patients with Sjogren-Larsson Syndrome
Background: Sjögren-Larsson syndrome (SLS) is an autosomal recessive disorder characterized by ichthyosis, mental retardation, and spasticity. Various mutations in the ALDH3A2 gene that codes for fatty aldehyde dehydrogenase (FALDH) are responsible for the disease but the genotype-phenotype relationships are undefined. Objectives: The purpose of this study
Publicado em: 2006
-
34. Análises molecular e morfométrica em populações naturais de Eupemphix nattereri, 1863 (Amphibia: Anura: Leptodactylidae) do Brasil Central
Genetic diversity is necessary to the adaptation of populations to environmental changes, and could be measured by quantitative and molecular methods. The knowledge of species variability is also fundamental for conservation, and is an important characteristic. To assess species genetic diversity, population genetic structure must be evaluated, which means,
Publicado em: 2006
-
35. Estudo dos fatores de virulencia de amostras de Escherichia coli patogenicas de origem aviaria (APEC) / Study of the virulence factors from avian pathogenic Escherichia coli strains (APEC)
Two pathogenic Escherichia coZi strains isolated from avian (APEC) showing c1inical signs of septicemia (817 and 821), and one isolated from avian showing c1inical signs of 8wollen Head 8yndrome (8H8 1 O), were selected from a total of 49 strains belonging to the Laboratory of Bacterial Molecular Biology, after a biological characterization regarding the pre
Publicado em: 2006
-
36. Oxyphilia in thyroid nodules: classification and relationship with immunohistochemical markers and mutations in BRAF and RAS genes and PAX8- PPARg rearrangement / Oxifilia nas lesões nodulares da tireóide: classificação e relação com marcadores imuno-histoquímicos e mutações nos genes BRAF e RAS e rearranjo PAX8-PPARgama
Uma série de 205 casos de lesões nodulares da tireóide foi revista morfologicamente de acordo com a nova classificação da Organização Mundial da Saúde (OMS, 2004) e analisada quanto à imuno-expressão das citoqueratinas 14 (CK 14) e 19 (CK19) e de citocromo-oxidase. Especial ênfase foi dada à avaliação da oxifilia nos nódulos, valorizando não
Publicado em: 2006