Characterization and biological activity of the ribosomal protein L10a of the white shrimp: Fenneropenaeus merguiensis De Man during vitellogenesis.
The molecular events in the ovaries of Fenneropenaeus merguiensis De Man during vitellogenesis were investigated. The ribosomal protein L10a (RPL10a) was characterized and cloned. It consisted of 669 bp and the deduced polypeptide had 217 amino acids (GeneBank/EBI accession number FJ623402). The calculated molecular mass and pI were 25.7 kDa and 10.06, respectively. An immunohistochemical technique showed that RPL10a was located in the cytoplasm and nucleus of developing oocytes and follicle cells. Treatment of undeveloped ovarian explant cultures with recombinant histidine (His)-RPL10a stimulated the expression of translationally controlled tumor protein (TCTP), heat shock protein 70 (HSP70), and shrimp ovarian peritrophin (SOP) genes, previously shown to be involved in ovarian maturation. The transcripts of all three genes in the ovarian explants showed their highest expression after 4 h incubation with the His-RPL10a at 37 degrees C. The TCTP and HSP70 transcripts declined after 12 h, while the transcript of SOP remained high until 24 h. The His-RPL10a did not stimulate the expression of the TCTP, SOP, and HSP70 genes in shrimp muscle tissue. The information on the molecular behavior of the RPL10a in this study may, in the future, lead to new methods to stimulate ovarian development in shrimp.
Wonglapsuwan
Monwadee
M
Department of Molecular Biotechnology and Bioinformatics, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand.
Miyazaki
Teruo
T
Loongyai
Wiriya
W
Chotigeat
Wilaiwan
W
D000818:Animals; D060829:Arthropod Proteins; D001483:Base Sequence; D014408:Biomarkers, Tumor / Q000378:metabolism; D003001:Cloning, Molecular; D017931:DNA Primers / Q000235:genetics; D004926:Escherichia coli; D005260:Female; D005786:Gene Expression Regulation / Q000187:drug effects*; D018840:HSP70 Heat-Shock Proteins / Q000378:metabolism; D007150:Immunohistochemistry; D008562:Membrane Glycoproteins / Q000378:metabolism; D008969:Molecular Sequence Data; D009865:Oocytes / Q000378:metabolism; D006080:Ovarian Follicle / Q000378:metabolism; D010062:Ovulation Induction / Q000379:methods; D033561:Penaeidae / Q000235:genetics*; D020133:Reverse Transcriptase Polymerase Chain Reaction; D000080882:Ribosomal Protein L10; D012269:Ribosomal Proteins / Q000235:genetics* / Q000494:pharmacology; D017422:Sequence Analysis, DNA; D013785:Thailand; D000090324:Tumor Protein, Translationally-Controlled 1; D014818:Vitellogenesis / Q000235:genetics*
D060829:Arthropod Proteins; D014408:Biomarkers, Tumor; D017931:DNA Primers; D018840:HSP70 Heat-Shock Proteins; D008562:Membrane Glycoproteins; D012269:Ribosomal Proteins; D000090324:Tumor Protein, Translationally-Controlled 1
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