HOMD 16S rRNA Gene Sequence Download
HOMD provides two different sets of 16S rRNA Gene Reference Sequence (RefSeq) for download and BLAST search:
1.HOMD 16S rRNA RefSeq: This set contains sequences representing all currently named and unnamed oral taxa.
2.HOMD 16S rRNA Extended RefSeq: This set contains additional16S rRNA reference gene sequences that are distinctively different from existing taxa but have not yet been assigned with a taxon ID.
In addition, the entire collection of all cloned sequences (clonal collection) upon which the Refseq was derived from, is also provided for download on this page and on the HOMD FTP site.
[View Version History]
DateVersion Name 
HOMD 16S rRNA RefSeq *
2017-01-03HOMD 16S rRNA RefSeq Version 14.51 (Starts from position 28)
2017-01-03HOMD 16S rRNA RefSeq Version 14.51 (Starts from position 9)
2016-03-29HOMD 16S rRNA RefSeq Version 14.5 (Starts from position 28)
2016-03-29HOMD 16S rRNA RefSeq Version 14.5 (Starts from position 9)
2013-05-08HOMD 16S rRNA RefSeq Version 13.2 (Starts at position 28)
2013-05-08HOMD 16S rRNA RefSeq Version 13.2 (Starts at position 9)
2013-03-25HOMD 16S rRNA RefSeq Version 13.0
2013-01-16HOMD 16S rRNA RefSeq Version 12.0
2012-02-16HOMD 16S rRNA RefSeq Version 11.0
2010-02-08HOMD 16S rRNA RefSeq Version 10.1
2009-02-03HOMD 16S rRNA RefSeq Version 10
HOMD 16S rRNA Extended RefSeq *
2010-02-19HOMD 16S rRNA RefSeq Extended Version 1.1
2009-02-25HOMD 16S rRNA RefSeq Extended Version 1
HOMD 16S rRNA Gene Sequence Clonal Collection
2010-02-07HOMD 16S rRNA Gene Sequence Clonal Collection Version 1
Other Download Formats
2017-01-03HOMD 16S rRNA RefSeq Version 14.51 Aligned FASTA File
2017-01-03HOMD 16S rRNA RefSeq Version 14.51 Taxonomy File for MOTHUR
2017-01-03HOMD 16S rRNA RefSeq Version 14.51 Taxonomy File for QIIME
2016-03-29HOMD 16S rRNA RefSeq Version 14.5 Aligned FASTA File
2016-03-29HOMD 16S rRNA RefSeq Version 14.5 Taxonomy File for MOTHUR
2016-03-29HOMD 16S rRNA RefSeq Version 14.5 Taxonomy File for QIIME
2013-05-08HOMD 16S rRNA RefSeq Version 13.2 Aligned FASTA File
2013-05-08HOMD 16S rRNA RefSeq Version 13.2 FASTA File in QIIME Format
2014-09-11HOMD 16S rRNA RefSeq Version 13.2 FASTA File for mothur
2014-09-11HOMD 16S rRNA RefSeq Version 13.2 Taxonomy File for mothur
* These sequences are corrected consensus sequences. Many have been corrected and extended based on alignment with other sequences for that taxon and Ns and indels removed. Therefore, for many sequences, there will be differences between the Reference Sequence and the GenBank sequence listed in the header information. We have not yet updated our own GenBank sequences, and can not update those from other depositors. We believe these are currently the best reference sequences available, and for the purposes of BLAST analysis, have the advantage of being of a uniform length.

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