title: In silico cloning, expression of Rieske-like apoprotein gene and protein subcellular localization in the Pacific oyster, Crassostrea gigas.
abstract: Rieske protein gene in the Pacific oyster Crassostrea gigas was obtained by in silico cloning for the first time, and its expression profiles and subcellular localization were determined, respectively. The full-length cDNA of Cgisp is 985 bp in length and contains a 5'- and 3'-untranslated regions of 35 and 161 bp, respectively, with an open reading frame of 786 bp encoding a protein of 262 amino acids. The predicted molecular weight of 30 kDa of Cgisp protein was verified by prokaryotic expression. Conserved Rieske [2Fe-2S] cluster binding sites and highly matched-pair tertiary structure with 3CWB_E (Gallus gallus) were revealed by homologous analysis and molecular modeling. Eleven putative SNP sites and two conserved hexapeptide sequences, box I (THLGC) and II (PCHGS), were detected by multiple alignments. Real-time PCR analysis showed that Cgisp is expressed in a wide range of tissues, with adductor muscle exhibiting the top expression level, suggesting its biological function of energy transduction. The GFP tagging Cgisp indicated a mitochondrial localization, further confirming its physiological function.
authors.affiliation: Laboratory of Marine Bio-Resource Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, 510301, Guangzhou, China.
authors.forename: Xiaocui
authors.initials: X
authors.lastname: He
authors.forename: Yang
authors.initials: Y
authors.lastname: Zhang
authors.forename: Ziniu
authors.initials: Z
authors.lastname: Yu
mesh_terms: D000818:Animals; D001059:Apoproteins / Q000737:chemistry / Q000235:genetics* / Q000378:metabolism*; D003001:Cloning, Molecular; D019295:Computational Biology / Q000379:methods*; D049896:Crassostrea / Q000235:genetics*; D018076:DNA, Complementary / Q000235:genetics; D014450:Electron Transport Complex III / Q000737:chemistry / Q000235:genetics* / Q000378:metabolism*; D004591:Electrophoresis, Polyacrylamide Gel; D004926:Escherichia coli / Q000378:metabolism; D020869:Gene Expression Profiling; D005786:Gene Expression Regulation; D049452:Green Fluorescent Proteins / Q000378:metabolism; D008958:Models, Molecular; D008969:Molecular Sequence Data; D010140:Pacific Ocean; D021381:Protein Transport; D012333:RNA, Messenger / Q000235:genetics / Q000378:metabolism; D011994:Recombinant Proteins / Q000378:metabolism; D040681:Structural Homology, Protein; D013347:Subcellular Fractions / Q000378:metabolism
chemical_list: D001059:Apoproteins; D018076:DNA, Complementary; D012333:RNA, Messenger; D011994:Recombinant Proteins; C037989:Rieske iron-sulfur protein; D049452:Green Fluorescent Proteins; D014450:Electron Transport Complex III