Characterization of endopeptidases from the midgut of Morimus funereus (Coleoptera: Cerambycidae) larvae

Autor: Božić Nataša, Dojnov Biljana, Milovanović Aleksandra, Nenadović Vera, Ivanović Jelisaveta, Vujčić Z.
Jazyk: angličtina
Rok vydání: 2008
Předmět:
Zdroj: Archives of Biological Sciences, Vol 60, Iss 3, Pp 403-409 (2008)
Druh dokumentu: article
ISSN: 0354-4664
DOI: 10.2298/ABS0803403B
Popis: Application of specific chromogenic substrates, use of class-specific inhibitors, and zymogram analysis enabled us to identify several peptidase classes in extracts of the midgut of Morimus funereus larvae. Zymogram analysis with gelatin as a peptidase substrate and phenylmethylsulfonyl fluoride as an inhibitor showed that serine peptidases were the most abundant endopeptidases in the midgut of M. funereus larvae. By zymogram analysis with gelatin as a peptidase substrate and 1,10-phenanthroline as an inhibitor, metallopeptidases were also detected. Analyses of serine peptidases with specific chromogenic substrates revealed dominance of elastase-like peptidases in extracts of the midgut of M. funereus larvae, with less pronounced chymotrypsin- and trypsin-like activities.
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