Are you working with Human Long Noncoding RNAs? Also try the AnnoLnc
for an integrative annotation of your lncRNAs.
The coding potential calculator tool reads
FASTA data format as input.
"A sequence in FASTA format begins with a single-line description, followed by lines
of sequence data. The description line is distinguished from the sequence data by
a greater-than (">") symbol in the first column.(ncbi) "