rrndb: the Ribosomal RNA Operon Copy Number Database.
Nucleic Acids Res
; 29(1): 181-4, 2001 Jan 01.
Article
en En
| MEDLINE
| ID: mdl-11125085
ABSTRACT
The Ribosomal RNA Operon Copy Number Database (rrndb) is an Internet-accessible database containing annotated information on rRNA operon copy number among prokaryotes. Gene redundancy is uncommon in prokaryotic genomes, yet the rRNA genes can vary from one to as many as 15 copies. Despite the widespread use of 16S rRNA gene sequences for identification of prokaryotes, information on the number and sequence of individual rRNA genes in a genome is not readily accessible. In an attempt to understand the evolutionary implications of rRNA operon redundancy, we have created a phylogenetically arranged report on rRNA gene copy number for a diverse collection of prokaryotic microorganisms. Each entry (organism) in the rrndb contains detailed information linked directly to external websites including the Ribosomal Database Project, GenBank, PubMed and several culture collections. Data contained in the rrndb will be valuable to researchers investigating microbial ecology and evolution using 16S rRNA gene sequences. The rrndb web site is directly accessible on the WWW at http//rrndb.cme. msu.edu.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Bases de Datos Factuales
/
Operón de ARNr
/
Dosificación de Gen
Idioma:
En
Revista:
Nucleic Acids Res
Año:
2001
Tipo del documento:
Article
País de afiliación:
Estados Unidos