greengenes.lbl.gov - Aligned 16S rDNA data and tools

Browse

Export

Slice

Consensus

Compare

Probes

Align

Trim

Download

More Tools

Functions

Consensus

About

My Interest List

0 sequences

remove all
collapse all
show marked

My Taxonomy

Changing taxonomy will empty My Interest List.

Trim a batch of sequences using corresponding quality scores

Use this tool to trim your fasta sequences according to their quality scores. A fasta file of your trimed sequences will be sent by email along with a spreadsheet of results. This is a beta tool, so please provide feedback. The program is based on the work of David Ow.

My fasta formatted sequence file:

My fasta formatted quality file:

Options:

Good quality threshold:
Set the quality score required for a base call to be considered as confident.

Window size:
Set the size of the span to be considered collectively.

Percentage:
Set the percentage of bases that must surpass the threshold for the window to be considered good quality.

Bases returned upper-case.
Bases returned as upper-case, sub-threshold quality positions are converted to lower-case.
Bases returned as upper-case, sub-threshold quality positions are converted to N.

Email address to send results (required):

Trim now.

Last Database Update: June 16, 2008 1:58PM

232812 aligned 16S rDNA records >1250nt