[Molecular cloning and sequence analyzing of cytoplasmic ribosomal protein gene OsRPS7 from rice (Oryza sativa)]

Using the cDNA of rye cytoplasmic ribosomal protein ScRPS7 as a query probe, a highly homologous rice genomic contig was obtained from Huada rice genome database. The full-length cDNA sequence of rice cytoplasmic ribosomal protein S7 was assembled by informatics based on the contig. Furthermore, with the two primers designed according to this assembled cDNA, the full-length cDNA of rice ribosomal protein was cloned by RT-PCR and named as OsRPS7. The cDNA was 919bp in length and contained a complete Open Reading Frame (ORF) of 576bp, encoding a protein of 192 amino acid residues. The deduced amino acids of OsRPS7 showed 88%,72% and 72% identity with those from Secale cereale, Arabidopsis thaliana and Brassica oleracea, respectively. The genome structure of OsRPS7 was analyzed, and its function was predicted in this paper.