Firefly luciferases have been extensively used as bioanalytical reagents and their cDNAs as reporter genes and bioimaging biosensors. Luciferases of fireflies, “rail-road” worm and "tec-tec" beetles, have different ...

Fish are animals present in a wide variety of habitats and are distributed all over the world. The diversity of forms, behaviors and niches associated with the evolutionary characteristics of these animals make them important ...

Macrobrachium amazonicum is an endemic species in South America, which has been exploited by artisanal fisheries in northern and northeastern Brazil. The overexploitation of this species has led to the decline of its natural ...

Leishmaniasis is an infection caused by Leishmania gender protozoa. The treatment of the disease is generally problematic, as the drugs used on clinical practice are toxic. One of the paths in the search for new therapeutic ...

Cystatins are tight-binding, competitive cysteine-peptidase inhibitors. In plants, these proteins are part of natural defense mechanism, regulating endogenous and exogenous peptidases. In humans, cystatins are responsible ...

Penaeidae family occurs in all oceans, particularly in tropical regions and represents an important global fishing resource. In Brazil, penaeid species have been shown decline, of their populations, which are considered ...

Odorant-binding proteins (OBPs) are of great importance for survival and reproduction since they participate in initial steps of the olfactory signal transduction cascade, solubilizing and transporting chemical signals ...

Astyanax fasciatus is characterized as a cytogenetically diverse species. Sympatric and syntopic occurrence of distinct cytotypes corroborates the hypothesis that A. fasciatus might represent a species complex sharing a ...

Chromosomes of distinct species of Triportheus (Characiformes, Characidae) from different hydrographic basins in Brazil, as well as in Argentina, were analyzed in the present work. Triportheus nematurus, from Piracicaba ...

Phytocystatins are inhibitors of cysteine peptidases found naturally in plants. Sugarcane cystatins are distinguished by their high inhibitory activity and possible biotechnological applications. In this work, a comparative ...