Research Article

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03/01/2004
Chromobacterium violaceum; Gene expression; Gene regulation; RNA processing; Transcription; Translation

The repertoire of 4,431 open reading frames (ORFs), eight rRNA operons and 98 tRNA genes of Chromobacterium violaceum must be expressed in a regulated manner for successful adaptation to a wide variety of environmental conditions. To accomplish this feat, the organism relies on protein machineries involved in transcription, RNA processing and translation. Analysis of the C. violaceum ... more

R. Silva; J.R. Araripe; E. Rondinelli; T.P. Ürményi
03/31/2004
Chromobacterium violaceum; DNA repair; Free-living organism; Genome

Chromobacterium violaceum is a Gram-negative β-proteobacterium that inhabits a variety of ecosystems in tropical and subtropical regions, including the water and banks of the Negro River in the Brazilian Amazon. This bacterium has been the subject of extensive study over the last three decades, due to its biotechnological properties, including the characteristic violacein ... more

F.Teixeira Duarte; F.Marques de Carvalho; U.Bezerra e Silva; K.Castanho Scortecci; C.Alfredo Ga Blaha; L.Fassarella Agnez-Lima; S.Regina Bat de Medeiros
03/31/2004
Chromobacterium violaceum; Genome; Pathogenicity; Virulence

Chromobacterium violaceum is a versatile, Gram-negative β-protebacterium that grows in a variety of ecosystems in tropical and subtropical areas, such as the water and borders of the Negro River, in the Amazon region of Brazil. Although it is a saprophyte and is generally considered non-pathogenic, sporadic cases of human infection have been described, mainly in young children and in ... more

C.F.Alves de Brito; C.M.B. Carvalho; F.R. Santos; R.T. Gazzinelli; S.C. Oliveira; V. Azevedo; S.M.R. Teixeira
03/31/2004
Antibiotics; Chromobacterium violaceum; Resistance

Chromobacterium violaceum is a free-living bacterium commonly found in aquatic habitats of tropical and subtropical regions of the world. This bacterium is able to produce a large variety of products of biotechnological and pharmacological use. Although C. violaceum is considered to be non-pathogenic, some cases of severe infections in humans and other animals have been reported ... more

F. Fantinatti-Garboggini; R. de Almeida; Vdo Amaral Portillo; T.A.P. Barbosa; P.Beltramini Trevilato; C.Eduardo Ra Neto; R.Duarte Coêlho; L.Aparecida Bartoleti; E.Seixas Hanna; M. Brocchi; G.P. Manfio; D.Wanderlei Silva
12/30/2004
Computational data mining; Database; Homology modeling; HORDE; Olfactory receptor; Sequence analysis

Olfactory receptors (ORs) constitute the largest gene-family in the vertebrate genome. We have attempted to provide a comprehensive view of the OR universe through diverse tools of bioinformatics and computational biology. Among others, we have constructed the Human Olfactory Receptor Data Exploratorium (HORDE, http:// ... more

T. Olender; E. Feldmesser; T. Atarot; M. Eisenstein; D. Lancet
07/15/2013
5ꞌ-3ꞌ-RACE-PCR; Codon bias; Glyceraldehyde-3-phosphate dehydrogenase gene; Homology modeling; Penicillium expansum; Southern blot

Penicillium expansum produces large amounts of lipase, which is widely used in laundry detergent and leather industry. We isolated the glyceraldehyde-3-phosphate dehydrogenase gene (PeGPD) from P. expansum PE-12 through reverse transcriptase PCR and 5ꞌ-3ꞌ-rapid amplification of cDNA ends (RACE-PCR). The gene is 1266 bp long, including an ORF of 1014 bp, ... more

T. Zhang; Z. Qi; Q.S. Yu; K.X. Tang
03/31/2004
Biotechnological potential; Chromobacterium violaceum; Environmental detoxification

Chromobacterium violaceum is a Gram-negative bacterium found in a wide variety of tropical and subtropical ecosystems. The complete genome sequence of C. violaceum ATCC 12472 is now available, and it has considerable biotechnological potential for various applications, such as environmental detoxification, as well as medical and agricultural use. We examined the ... more

M.S.P. Carepo; J.S.Nina de Azevedo; J.I.R. Porto; A.R. Bentes-Sousa; Jda Silva Batista; A.L.C. da Silva; M.P.C. Schneider
03/31/2004
Aerobic metabolism; Anaerobic metabolism; Chromobacterium violaceum; Energetic metabolism

Chromobacterium violaceum is a free-living microorganism, normally exposed to diverse environmental conditions; it has a versatile energy-generating metabolism. This bacterium is capable of exploiting a wide range of energy resources by using appropriate oxidases and reductases. This allows C. violaceum to live in both aerobic and anaerobic conditions. In aerobic ... more

T.B. Creczynski-Pasa; R.V. Antônio
03/01/2004
Chemosensory transducer protein; Chemotaxis; Chromobacterium violaceum; Methyl-accepting chemotaxis proteins

The availability of the complete genome of the Gram-negative β-proteobacterium Chromobacterium violaceum has increasingly impacted our understanding of this microorganism. This review focuses on the genomic organization and structural analysis of the deduced proteins of the chemosensory adaptation system of C. violaceum. C. violaceum has multiple homologues of most ... more

M. Pereira; J.Alves Parente; L.Artur Mend Bataus; Ddas Dores Cardoso; R.Bastos Asc Soares; C.Maria de A. Soares
03/01/2004
Chromobacterium violaceum; N-acyl-homoserine synthase; Polyketide synthase; Tryptophan 2-monooxygenase; Tryptophan metabolism; Violacein

Chromobacterium violaceum presents a distinctive phenotypic characteristic, the production of a deep violet pigment named violacein. Although the physiological function of this pigment is not well understood, the sequencing of the genome of this bacterium has given some insight into the mechanisms and control of violacein production. It was found that erythrose-4-phosphate ( ... more

R.Vasconcell Antônio; T.B. Creczynski-Pasa

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