trf - 4.09.1-6 main

A tandem repeat in DNA is two or more adjacent, approximate copies of a
pattern of nucleotides. Tandem Repeats Finder is a program to locate and
display tandem repeats in DNA sequences. In order to use the program,
the user submits a sequence in FASTA format. There is no need to specify
the pattern, the size of the pattern or any other parameter. The output
consists of two files: a repeat table file and an alignment file. The
repeat table, viewable in a web browser, contains information about each
repeat, including its location, size, number of copies and nucleotide
content. Clicking on the location indices for one of the table entries
opens a second browser page that shows an alignment of the copies
against a consensus pattern. The program is very fast, analyzing
sequences on the order of .5Mb in just a few seconds. Submitted
sequences may be of arbitrary length. Repeats with pattern size in the
range from 1 to 2000 bases are detected.