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Title: Up-regulation of Ribophorin I after yellow head virus (YHV) challenge in black tiger shrimp Penaeus monodon
Authors: Sudkhate Molthathong
Arun Buaklin
Saengchan Senapin
Sirawut Klinbunga
Jiraporn Rojtinnakorn
Timothy W. Flegel
Mahidol University
Chulalongkorn University
Thailand National Science and Technology Development Agency
Maejo University
Keywords: Agricultural and Biological Sciences;Immunology and Microbiology
Issue Date: 1-Jul-2008
Citation: Fish and Shellfish Immunology. Vol.25, No.1-2 (2008), 40-46
Abstract: This work constitutes the second report from a continuing investigation of shrimp genes that may be involved in apoptosis associated death resulting from yellow head virus (YHV) infection. Here, we describe from the black tiger shrimp Penaeus monodon, a ribophorin I-like gene that is probably a subunit of the oligosaccharyltransferase complex (OST), a key enzyme in N-linked glycosylation that occurs in the endoplasmic reticulum. The OST complex also contains DAD1 (defender against apoptotic death 1) that has been reported to control apoptosis and that we have previously reported from P. monodon. The full length ribophorin I of P. monodon comprised 2157 bp with the ORF of 1806 bp corresponding to 601 deduced amino acids and three putative N-linked glycosylation sites. Analysis revealed hydrophobic properties implying that it could be a membrane protein. Tissue distribution analysis using real-time RT-PCR with SYBR Green revealed that ribophorin I was endogenously expressed in all examined tissues of normal shrimp. However, unlike DAD1 that was down-regulated after YHV challenge, ribophorin I expression was up-regulated and remained high until the moribund stage. © 2007 Elsevier Ltd. All rights reserved.
ISSN: 10959947
Appears in Collections:Scopus 2006-2010

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