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Please use this identifier to cite or link to this item: http://repository.li.mahidol.ac.th/dspace/handle/123456789/43498
Title: The interaction between PmHtrA2 and PmIAP and its effect on the activity of Pm caspase
Authors: Anchulee Saleeart
Karntichar Mongkorntanyatip
Pakkakul Sangsuriya
Saengchan Senapin
Triwit Rattanarojpong
Pongsak Khunrae
King Mongkut s University of Technology Thonburi
Thailand National Science and Technology Development Agency
Thailand National Center for Genetic Engineering and Biotechnology
Mahidol University
Keywords: Agricultural and Biological Sciences;Environmental Science
Issue Date: 1-Aug-2016
Citation: Fish and Shellfish Immunology. Vol.55, (2016), 393-400
Abstract: © 2016 Elsevier Ltd. Apoptosis is an essential mechanism in multicellular organisms which results in the induction of cell death. Important apoptotic proteins, including high temperature requirement A2 (PmHtrA2; also known as serine protease), inhibitor of apoptosis protein (PmIAP) and Pm caspase, have been previously identified in black tiger shrimp, Penaeus monodon. However, the relevance among these proteins in apoptosis regulation has not been established yet in shrimp. Here, we showed that PmHtrA2 was able to interact with PmIAP and the binding of the two proteins was mediated by the BIR2 domain of PmIAP. In addition, the BIR2 of PmIAP was shown to be able to inhibit Pm caspase activity. The inhibitory effect of the BIR2 domain on Pm caspase was impaired under the presence of the IBM peptide of PmHtrA2, implying a role for PmHtrA2 in apoptosis activation. Our combined results suggested that P. monodon possesses a conserved mechanism by which the caspase-3 activity is modulated by HtrA2 and IAP, as previously seen in insects and mammals.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84974724278&origin=inward
http://repository.li.mahidol.ac.th/dspace/handle/123456789/43498
ISSN: 10959947
10504648
Appears in Collections:Scopus 2016-2017

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