Buscar
Mostrando ítems 1-10 de 126
Identification of bradykinins in solitary wasp venoms
(Elsevier B.V., 2002-03-01)
Bradykinins were identified in three solitary wasp venoms. Purification and characterization of the venom extract of the scoliid wasp Megacampsomeris prismatica led to the identification of bradykinin and threonine(6)-bradykinin ...
High-performance gel filtration patterns of venoms from three species of wasps of the genus Polybia (hymenoptera, vespidae).
(1996-01-01)
The profiles of high-performance gel filtration of venoms from Polybia paulista, Polybia ignobilis and Polybia occidentalis occidentalis showed 13 peaks distributed among the three species. These profiles presented ...
Ultramorphological analysis of the venom glands and their histochemical relationship with the convoluted glands in the primitive social paper wasp Polistes versicolor (Hymenoptera: Vespidae)
(Centro de Estudos de Venenos e Animais Peçonhentos, 2005-06)
The venom glands are part of the most important defense weapon in Aculeata: the venom apparatus. The arrangement of these glands can vary among species, but in general they are composed of long secretory tubules connected ...
Conformation and lytic activity of eumenine mastoparan: A new antimicrobial peptide from wasp venom
(2004-09-01)
Eumenine mastoparan-AF (EMP-AF) is a novel membrane active tetradecapeptide recently isolated from the venom of solitary wasp, Anterhynchium flavomarginatum micado. It was reported previously that EMP-AF peptide presented ...
Trypanocidal activity of mastoparan from Polybia paulista wasp venom by interaction with TcGAPDH
(Elsevier B.V., 2017-10-01)
Chagas disease, considered a neglected disease, is a parasitic infection caused by Trypanosoma cruzi, which is endemic throughout the world. Previously, the antimicrobial effect of Mastoparan (MP) from Polybia paulista ...
Peptidome profiling of venom from the social wasp Polybia paulista
(Elsevier B. V., 2015)
Most crude venom from Polybiapaulista is composed of short, linear peptides; however, only five of these peptides are structurally and functionally characterized. Therefore, the peptides in this venom were profiled using ...
Structural characterization of novel chemotactic and mastoparan peptides from the venom of the social wasp Agelaia pallipes pallipes by high-performance liquid chromatography/electrospray ionization tandem mass spectrometry
(Wiley-Blackwell, 2004-04-15)
High-performance liquid chromatography/electrospray ionization mass spectrometry (HPLC/ESI-MS) and high-performance liquid chromatography/electrospray ionization tandem mass spectrometry (HPLC-ESI-MS/MS) techniques were ...
Characterization of the mechanisms underlying the inflammatory response to Polistes lanio lanio (paper wasp) venom in mouse dorsal skin
(PERGAMON-ELSEVIER SCIENCE LTD, 2009)
Stings by Polistes wasps can cause life-threatening allergic reactions, pain and inflammation. We examined the changes in microvascular permeability and neutrophil influx caused by the venom of Polistes lanio a paper wasp ...
Characterization of two novel polyfunctional mastoparan peptides from the venom of the social wasp Polybia paulista
(Elsevier B.V., 2009-08-01)
Hymenoptera venoms are complex mixtures of biochemically and pharmacologically active components such as biogenic amines, peptides and proteins. Polycationic peptides generally constitute the largest group of Hymenoptera ...
Peptide diversity in the venom of the social wasp Polybia paulista (Hymenoptera): A comparison of the intra- and inter-colony compositions
(Elsevier B.V., 2014-01-01)
The venoms of the social wasps evolved to be used as defensive tools to protect the colonies of these insects against the attacks of predators. Previous studies estimated the presence of a dozen peptide components in the ...