|   | EDIT | 
Sequence editing
| Program name | Description | 
|---|---|
| biosed | Replace or delete sequence sections | 
| codcopy | Reads and writes a codon usage table | 
| cutseq | Removes a specified section from a sequence | 
| degapseq | Removes gap characters from sequences | 
| descseq | Alter the name or description of a sequence | 
| entret | Reads and writes (returns) flatfile entries | 
| extractalign | Extract regions from a sequence alignment | 
| extractfeat | Extract features from a sequence | 
| extractseq | Extract regions from a sequence | 
| listor | Write a list file of the logical OR of two sets of sequences | 
| makenucseq | Creates random nucleotide sequences | 
| makeprotseq | Creates random protein sequences | 
| maskfeat | Mask off features of a sequence | 
| maskseq | Mask off regions of a sequence | 
| newseq | Type in a short new sequence | 
| noreturn | Removes carriage return from ASCII files | 
| notseq | Exclude a set of sequences and write out the remaining ones | 
| nthseq | Writes one sequence from a multiple set of sequences | 
| pasteseq | Insert one sequence into another | 
| revseq | Reverse and complement a sequence | 
| seqret | Reads and writes (returns) sequences | 
| seqretsplit | Reads and writes (returns) sequences in individual files | 
| skipseq | Reads and writes (returns) sequences, skipping first few | 
| splitter | Split a sequence into (overlapping) smaller sequences | 
| trimest | Trim poly-A tails off EST sequences | 
| trimseq | Trim ambiguous bits off the ends of sequences | 
| union | Reads sequence fragments and builds one sequence | 
| vectorstrip | Strips out DNA between a pair of vector sequences | 
| yank | Reads a sequence range, appends the full USA to a list file |