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ready The ribosomal RNA operon copy number database


General Information
The ribosomal RNA operon copy number database is a publicly available, curated resource for ribosomal operon (rrn) copy number information for Bacteria and Archaea.


Countries that developed this resource United States

Created in 1999

Taxonomic range

How to cite this record rrnDB; The ribosomal RNA operon copy number database; DOI:; Last edited: Jan. 8, 2019, 1:21 p.m.; Last accessed: Jan 26 2022 8:22 p.m.

This record is maintained by rrndbsupport

Record updated: Jan. 5, 2017, 3:48 p.m. by The FAIRsharing Team.

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Additional Information


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Access / Retrieve Data


rrnDB: Improved tools for interpreting rRNA gene abundance in Bacteria and Archaea and a new foundation for future development

Stoddard S.F, Smith B.J., Hein R., Roller B.R.K. and Schmidt T.M.
Nucleic Acids Research 2014

View Paper (PubMed) View Publication

rrndb: the Ribosomal RNA Operon Copy Number Database.

Klappenbach JA,Saxman PR,Cole JR,Schmidt TM
Nucleic Acids Res 2000

View Paper (PubMed)

rrnDB: documenting the number of rRNA and tRNA genes in bacteria and archaea.

Lee ZM,Bussema C 3rd,Schmidt TM
Nucleic Acids Res 2008

View Paper (PubMed) View Publication

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Record Maintainer



Grant Number(s)

  • DEB 1027253 (National Science Foundation (NSF), USA)

  • M0099549 (National Institutes of Health (NIH), Bethesda, MD, USA)