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Registros recuperados: 4
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Excreted/secreted proteins from Trypanosome procyclic strains Inra
Nten, C.M.A.; Sommerer, N.; Rofidal, V.; Hirtz, C.; Rossignol, M.; Cuny, G.; Peltier, J.B.; Geiger, A..
Trypanosoma secretome was shown to be involved in parasite virulence and is suspected of interfering in parasite life-cycle steps such as establishment in the Glossina midgut, metacyclogenesis. Therefore, we attempted to identify the proteins secreted by procyclic strains of T. brucei gambiense and T. brucei brucei, responsible for human and animal trypanosomiasis, respectively. Using mass spectrometry, 427 and 483 nonredundant proteins were characterized in T. brucei brucei and T. brucei gambiense secretomes, respectively; 35% and 42% of the corresponding secretome proteins were specifically secreted by T. brucei brucei and T. brucei gambiense, respectively, while 279 proteins were common to both subspecies. The proteins were assigned to 12 functional...
Tipo: Journal Article Palavras-chave: TRYPANOSOME; SECRETOME; TRANSMISSION; MOUCHE TSE-TSE.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD201013996fd2&uri=/notices/prodinra1/2010/08/
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Exocytosis and protein secretion in Trypanosoma Inra
Geiger, A.; Hirtz, C.; Becue, T.; Bellard, E.; Centeno, D.; Gargani, D.; Rossignol, M.; Cuny, G.; Peltier, J.B..
Background: Human African trypanosomiasis is a lethal disease caused by the extracellular parasite Trypanosoma brucei. The proteins secreted by T. brucei inhibit the maturation of dendritic cells and their ability to induce lymphocytic allogenic responses. To better understand the pathogenic process, we combined different approaches to characterize these secreted proteins.Results: Overall, 444 proteins were identified using mass spectrometry, the largest parasite secretome described to date. Functional analysis of these proteins revealed a strong bias toward folding and degradation processes and to a lesser extent toward nucleotide metabolism. These features were shared by different strains of T. brucei, but distinguished the secretome from published T....
Tipo: Journal Article Palavras-chave: TRYPANOSOME; SPECTROMETRIE DE MASSE.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20106a992200&uri=/notices/prodinra1/2010/08/
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Proteins and proteolysis in pre-term and term human milk and possible implications for infant formulae Inra
Armaforte, E.; Curran, E.; Huppertz, T.; Ryan, C.A.; Caboni, M.F.; O'Connor, P.M.; Ross, R.P.; Hirtz, C.; Sommerer, N.; Chevalier, F.; Kelly, A.L..
Understanding the differences between the protein system of human milk and bovine milk is critical in the development of infant formulae. In this study, the proteins of bovine milk and a bovine-based whey-dominant infant formula were compared with those of human milk for infants born prematurely (pre-term) or at full term (term). The protein distribution of infant formula differed significantly from that of either type of human milk. A proteomic comparison between pre-term and term human milk showed a reduction of levels of β-casein and αs-casein and appearance of additional products, corresponding to low molecular weight hydrolysis products of the caseins, in pre-term milk. Pre-term milk samples also had higher total nitrogen concentration and plasmin...
Tipo: Journal Article Palavras-chave: LAIT INFANTILE.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2010d3a489e4&uri=/notices/prodinra1/2010/09/
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The effect of environmental salinity on the proteome of the sea bass (Dicentrarchus labrax L.) Inra
Ky, C.L.; de Lorgeril, J.; Hirtz, C.; Sommerer, N.; Rossignol, M.; Bonhomme, F..
The European sea bass, Dicentrarchus labrax L., tolerates a range of salinities from freshwater to hyper-saline. To study differences in protein expression, fish were reared in both freshwater and seawater. After 3-month acclimation, gill and intestine epithelia were collected and the soluble protein extracted. In all, 362 spots were differentially expressed in the gills and intestines of fishes reared in seawater compared to those from freshwater. Fifty differential protein spots were excised from a colloidal Coomassie-stained gel. Nine separate protein spots were identified unambiguously by mass spectrometry and database searching. Among the six proteins over-expressed in gill cells in seawater, five were cytoskeleton proteins and one was the aromatase...
Tipo: Journal Article Palavras-chave: MALDI-TOF MASS SPECTROMETRY; REAL TIME PCR; SALINITY; SEA BASS; TWO-DIMENSIONAL GEL ELECTROPHORESIS.
Ano: 2007 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2008f070b07f&uri=/notices/prodinra1/2008/04/
Registros recuperados: 4
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