hfv top banner
HFV Ebola sequence database

Gap Strip/Squeeze v2.1.0

Purpose: To delete aligned columns that contain a chosen percentage of gaps or other characters.

Details: Set the gap tolerance to any value between 0% and 100%. A value of 0% will cause columns to be deleted if they contain only a single gap ("gap stripping"), while a value of 100% will delete only columns that are entirely gaps ("gap squeezing"). See Explanation file for additional details.

Paste your alignment

[Sample Input]
Or upload your alignment


Gap character(s)
Gap tolerance%
Show deleted gaps
Preserve codons
(delete gaps in triplets)
Use tolerance for [1,2,3] positions in the codon Reading frame of the alignment is

Release Notes: For details on releases click here.

Known Bugs: For known bugs click here.

Wish List: For desired new features click here here.

Questions or comments? Contact us at hfv-info@lanl.gov