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FASTA format

A sequence in FASTA format consists of a single-LINE description, followed by LINEs of sequence data. The first character of the description LINE is a greater-than (">") symbol in the first column. All LINEs should be shorter than 80 charcters. An example sequence in FASTA format is:>Name of the sequence ctgcgagNcgcgcgatgatagMMM-NNNnnnnncgcggcgagcatgtagcatgctagctgtcgcgagcactUUUURRRrrrrrrr cggccgagatcaggcgatgcatgcgcagggagcagcgagcgacgagcacagcatgctagctagatgcatgctaVvvvcgtaggcagccgccgagagacgatggagctgcsequences have to be represented in the standard IUB/IUPAC amino acid and nucleic acid codes, with these exceptions: lower-case letters are accepted and are mapped into upper-case; a single hyphen or dash can be used to represent a gap of indeterminate length; and in amino acid sequences, U and * are acceptable letters (see below). Before submitting a request, any numerical digits in the query sequence should either be removed or replaced by appropriate letter codes (e.g., N for unknown nucleic acid residue or X for unknown amino acid residue).The nucleic acid codes supported are:cellspacing="4" cellpadding="0">A --> adenosineC --> cytidineG --> guanineT --> thymidineU --> uridineR --> G A (purine)Y --> T C (pyrimidine)K --> G T (keto) M --> A C (amino)S --> G C (strong)W --> A T (weak)B --> G T CD --> G A TH --> A C TV --> G C AN --> A G C T (any)- gap of indeterminate lengthFor those programs that use amino acid query sequences (BLASTP and TBLASTN), the accepted amino acid codes are:cellspacing="4" cellpadding="0">A alanineB aspartate or asparagineC cystineD aspartateE glutamateF phenylalanineG glycineH histidineI isoleucineK lysineL leucineM methionineN asparagineP proLINEQ glutamineR arginineS serineT threonineU selenocysteineV vaLINEW tryptophanY tyrosineZ glutamate or glutamineX any* translation stop- gap of indeterminate length

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