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Distribution and biological role of the oligopeptide-binding protein (OppA) in Xanthomonas species
(Sociedade Brasileira de Genética, 2010-01-01)
In this study we investigated the prevalence of the oppA gene, encoding the oligopeptide binding protein (OppA) of the major bacterial oligopeptide uptake system (Opp), in different species of the genus Xanthomonas. The ...
Mecanismos de absorção de aminoácidos e oligopeptídios. Controle e implicações na dietoterapia humana
(1999-12-01)
The mechanisms involved in the absorption of amino acids and oligopeptides are reviewed regarding their implications in human feedings. Brush border and basolateral membranes are crossed by amino acids and di-tripeptides ...
New proline-rich oligopeptides from the venom of African adders: Insights into the hypotensive effect of the venoms
(Elsevier B.V., 2015-06-01)
Background: the snakes from the Bitis genus are some of the most medically important venomous snakes in sub Saharan Africa, however little is known about the composition and effects of these snake venom peptides. Considering ...
Proteinase-activated receptor-2 (PAR2) agonist causes periodontitis in rats
(2005-02-01)
Proteinase-activated receptor-2 (PAR2) is a G-protein-coupled receptor that mediates cellular responses to extracellular proteinases. Since PAR2 is expressed by oral epithelial cells, osteoblasts, and gingival fibroblasts, ...
Hydrolyzed alpha-lactalbumin as a source of protein to the exercising
(Elsevier B.V., 1998-05-01)
This work describes the effect of feeding enzymatically hydrolyzed a-lactalbumin on blood sugar, albumin and fatty acids, muscular and hepatic glycogen of rats subjected to physical exercise. Three normoenergetic/normoproteic ...
Proline rich-oligopeptides: Diverse mechanisms for antihypertensive action
(Elsevier B.V., 2013-10-01)
Bradykinin-potentiating peptides from Bothrops jararaca (Bj) discovered in the early 1960s, were the first natural inhibitors of the angiotensin-converting enzyme (ACE). These peptides belong to a large family of snake ...
Structural features that make oligopeptides susceptible substrates for hydrolysis by recombinant thimet oligopeptidase
(Portland Press, 1997-06-01)
A systematic analysis of the peptide sequences and lengths of several homologues of bioactive peptides and of a number of quenched-fluorescence (qf) opioid- and bradykinin-related peptides was performed to determine the ...
The Central Nervous System as Target for Antihypertensive Actions of a Proline-Rich Peptide from Bothrops jararaca Venom
(Wiley-Blackwell, 2010-03-01)
Pyroglutamyl proline-rich oligopeptides, present in the venom of the pit viper Bothrops jararaca (Bj-PROs), are the first described naturally occurring inhibitors of the angiotensin I-converting enzyme (ACE). the inhibition ...
Renal effects of angiotensin II receptor subtype 1 and 2-selective ligands injected into the paraventricular nucleus of conscious rats
(1999-10-22)
We determined the effects of losartan and CGP42112A (selective ligands of the AT1 and AT2 angiotensin receptors, respectively) and salarasin (a relatively nonselective angiotensin receptor antagonist) on urinary volume and ...