In the genbank files rRNA only have following features to it:
rRNA 67149..68657 /locus_tag="Arad_5100" /product="16S ribosomal RNA (operon 1)" /db_xref="GeneID:7371836"
unlike CDS which has,
CDS 74072..74647 /locus_tag="Arad_0081" /codon_start=1 /transl_table=11 /product="hypothetical protein" /protein_id="YP_002542787.1" /db_xref="GI:222084261" /db_xref="GeneID:7371837" /translation="MTARGIARLVELRDAGVTAATMSRMERDGEVLRLARGLYQLSDA PLDANHSLAEAAKRLPKGVVCLVSALAFHGLTDQLPKQVWLAIGRKDWAPKPDSTPIR IVRFTDRLLNESVETHVVEGVPVKVFGIVKTIADCFRYRNKIGLSVAIEGLQEVLRQR KATPGEIARQAERGGVATVIRPYIEALTANG"
so i can just use
to get the amino acid sequences.
But, how do i get the nucleotide sequences for any gene or rRNA genes?
I realize the whole nucleotide is listed at the bottom of the genbank file, and probably location information can be used to extract the sequence. But, i think there should be much simpler way.
Any help would be great.