ORF Finder

ORF Finder searches for open reading frames (ORFs) in the DNA sequence you enter. The program returns the range of each ORF, along with its protein translation. Use ORF Finder to search newly sequenced DNA for potential protein encoding segments.

Paste the raw or FASTA sequence into the text area below.

  • ORFs can begin with codon.
  • Search for ORFs in reading frame on the strand.
  • Only return ORFs that are at least codons long.

Enter the genetic code expressions. The default set of expressions describes the standard genetic code. Slashes mark the boundary of the pattern to match, while the equal sign and letter specify the amino acid described by the pattern. Within the pattern square brackets surround possible bases present at a single position. The vertical bar separates two distinct patterns that represent the same amino acid. Each expression is followed by a comma, except for the last expression. Stop codons must equal the asterisk for the program to work properly.