domains / families / science / filter-sequences

filter-sequences

separate

Filter and select sequences by criteria (length, ID, GC content, N content, motifs, patterns, description) using Biopython, streaming so large files never load into RAM. Use when subsetting a FASTA/FASTQ file, removing unwanted or low-quality records, or selecting records by specific criteria. Use the paired-end-fastq skill instead whenever the input is paired R1/R2 reads.

When to use

• subsetting a FASTA/FASTQ file
• removing unwanted or low-quality records
• selecting records by specific criteria
• filtering by length
• filtering by ID
• filtering by GC content
• filtering by N content
• filtering by motifs or patterns

When not to use

• paired R1/R2 reads

Skill page

Source