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  • Title: Evidence of alternative splicing of the chi2 chitinase gene from Metarhizium anisopliae.
    Author: Boldo JT, do Amaral KB, Junges A, Pinto PM, Staats CC, Vainstein MH, Schrank A.
    Journal: Gene; 2010 Aug 15; 462(1-2):1-7. PubMed ID: 20406672.
    Abstract:
    Metarhizium anisopliae is a filamentous fungus used in the biological control of arthropods and produces several chitinases in order to break the host cuticle chitin fibers. Chitinase function during fungal cell development and/or infection processes is also an important aspect when analyzing the life cycle of entomopathogens. The expression profile analysis of the endochitinase chi2 gene acquired by RT-PCR experiments indicated the presence of two different transcripts, suggesting the occurrence of alternative splicing in the chi2 gene. The presence of two transcripts, characterized by the removal or retention of the second 72 bp intron, was further confirmed by DNA sequencing, Northern blot and qRT-PCR. Furthermore, we detected the synthesis of two different proteins from the transcripts by two-dimensional Western blot and mass spectrometry analyses. This is the first reported occurrence of alternative splicing in M. anisopliae.
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