NCBI Home GenBank Annotation Examples

 Spacer Image
 Back to NCBI
 Back to NCBI


mRNA sequence

Prokaryotic gene

Eukaryotic gene

rRNA and/or ITS

Promoter region

Viral sequence


Transposon or insertion sequence


Repeat regions


Translocation and/or fusion protein

Cloning vector

Gapped Sequence

Phylogenetic or population studies

EST submissions

STS submissions

GSS submissions



 Spacer Image
  Ribosomal RNA and Internal Transcribed Spacers

Relevant feature information for a genomic sequence containing structural RNAs and/or spacers:
  • names of any structural RNAs (eg, tRNA-Ile, 16S ribosomal RNA)
  • names of any spacer regions (eg, internal transcribed spacer 1, 16S/23S intergenic spacer)
  • nucleotide spans of each of the above features, if known

We strongly suggest that you provide as much of the above information as possible to ensure the most complete annotation of your sequence. If any of this information is not known, please inform us.


Saccharomyces cerevisiae 18S ribosomal RNA gene, partial sequence;
internal transcribed spacer 1, 5.8S ribosomal RNA gene and internal
transcribed spacer 2, complete sequence; and 28S ribosomal RNA
gene, partial sequence.

FEATURES             Location/Qualifiers

     source          1..540
                     /organism="Saccharomyces cerevisiae"
                     /strain="UMD 334"

     rRNA            <1..5
                     /product="18S ribosomal RNA"
     misc_RNA        6..178
                     /product="internal transcribed spacer 1"
     rRNA            179..377
                     /product="5.8S ribosomal RNA"
     misc_RNA        378..519
                     /product="internal transcribed spacer 2"
     rRNA            520..>540
                     /product="28S ribosomal RNA"


Revised November 28, 2000