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Identification of cDNAs encoding HSP70 and HSP90 in the abalone Haliotis tuberculata: Transcriptional induction in response to thermal stress in hemocyte primary culture


Journal title : Comparative Biochemistry and Physiology. Part B. Biochemistry & molecular biology
Volume : 146
Issue : 4
Publication date : 01/01/2007

Document type > *Article de revue

Keywords > FISH, heat transfer

Research Unit > IRSN/DEI/SECRE/LRC

Authors > FARCY Emilie, FIEVET Bruno, LEBEL Jean-Marc, SERPENTINI Antoine

Publication Date > 01/01/2007

Summary

Heat-shock proteins are a multigene family of proteins whose expression is induced by a variety of stress factors. This work reports the cloning and sequencing of HSP70 and HSP90 cDNAs in the gastropod Haliotis tuberculata. The deduced amino acid sequences of both HSP70 and HSP90 from H. tuberculata shared a high degree of homology with their homologues in other species, including typical eukaryotic HSP70 and HSP90 signature sequences. We examined their transcription expression pattern in abalone hemocytes exposed to thermal stress. Real-time PCR analysis indicated that both HSP70 and HSP90 mRNA were expressed in control animals but rapidly increased after heat-shock.

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