 The genomic sequence starts 4,951-bp upstream of the transcription start site and 5,334-bp upstream of the translation initiation codon, with the length of the 5’ UTR being 484-bp long.There are three genes that are present within intron 27b of "NF1".These genes are "EVI2B", "EVI2A" and "OMG", which are encoded on the opposite strand and are transcribed in the opposite direction of "NF1."