Figure 1
From: Preserving sequence annotations across reference sequences
BED file examples. RefSeq transcript annotation in BED format on genome builds hg19 (a) and hg18 (b). The second line contains the start and end positions of the NM_001005484 transcript encoded by the OR4F5 gene that differ per assembly. Note that the BED file header line does not explicitly state the reference sequence information. The submitter can only embed this information in the track description through natural language.