Does anybody know the exact number of 16S rRNA copies per genome in S. aureus and S. chromogenes?

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Babek Alibayov

Hi Magdalena,

The S. aureus MW2 genome contains six 16S rRNA copie (reference:http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4316401/), but S. aureus Mu50 genome contains five 16S rRNA copie (https://www.researchgate.net/profile/Tom_Coenye/publication/5332959_Intragenomic_heterogeneity_between_multiple_16S_ribosomal_RNA_operons_in_sequenced_bacterial_genomes/links/547325ad0cf216f8cfaea009.pdf). Usually, S. aureus genome contains between 3-7 copy of 16S rRNA copie (independent of strains).

Best regards

Article Intragenomic heterogeneity between multiple 16S ribosomal RN...

Magdalena Podkowik

Hello Babek,

Thank you for your reply! Sifting through the net I've found very useful OA platform:

https://rrndb.umms.med.umich.edu/

Data concerning S.aureus is in agreement with yours. There's visible intraspecies heterogeneity, on average 5 copies per genome.

Unfortunately by far, I haven't found anything about S. chromogenes. This issue seems to be unrecognized.

Regards!

Roshan Priyantha MADALAGAMA Appuhamilage

Thank you Magdalena for sharing this