SSU

Ref

This is the reference database containing only high quality, aligned 16S/18S ribosomal RNA sequences with a minimum length of 1200 bases for Bacteria and Eukarya and 900 bases for Archaea. A fully classified guide tree is included for fast navigation. For details see release information

HSM/MWM

453 MB

This file contains only high quality sequences from the Human Skin Microbiome and Mouse Wound Microbiota (both not included in SSURef).

Ref NR

192 MB

This dataset is based on the full Ref 108 and HSM/MWM datasets with a 99% criterion applied to remove redundant sequences using the UCLUST tool. Sequences from cultivated species have been preserved independent from prior filtering. The final dataset contains 376,437 sequences and can be used as a representative dataset for phylogenetic analysis and classification. More information ...

Parc

2 GB

This is the comprehensive 16S/18S database with all aligned, quality checked rRNA sequences longer than 300 bases and an alignment or sequence quality value above 30.
No tree included, selection of groups can be done based on the EMBL taxonomy.

LSU

Ref

37  MB

This is the reference database containing only high quality, aligned 23S/28S ribosomal RNA sequences with a minimum length of 1900 bases. A fully classified guide tree is included for fast navigation.

Parc

88  MB

This is the comprehensive 23S/28S database with all aligned, quality checked rRNA sequences longer than 300 bases and an alignment or sequence quality value above 30. A guide tree is included for fast navigation.