Figure 3From: Revised genomic structure of the human ghrelin gene and identification of novel exons, alternative splice variants and natural antisense transcriptsComparison of novel human and putative murine ghrelin exon sequences. The mouse and human alignments were generated by the ClustalW program and drawn by BOXSHADE http://www.ch.embnet.org/software/BOX_form.html. Black shading indicates conserved nucleotides. Transcription start sites determined by 5' RACE (Δ) and CAGE (Cap Analysis of Gene Expression) (*) are indicated, and the exact transcription start site nucleotides are shaded in grey in each species. Exon-intron boundaries are indicated by lowercase letters and bold font. A. Comparison of human and putative mouse transcription start sites (TSSs) in the novel exon -1. Two human TSSs are indicated, corresponding to 106 bp (5' RACE and CAGE tag starting site T03R009D4FFF) and 92 bp exon -1. An initiating methionine (ATG, start codon) which is not followed by a stop codon in exon -1 is underlined. No murine exon -1 CAGE tags were found in the FANTOM3 Basic CAGE viewer (May 2007) B. Comparison of human and mouse extended exon 0 sequences showing several human and murine exon 0 transcription start sites deduced by 5' RACE and CAGE (mouse T06R06CF33DC, T06R06CF32CB and T06R06CF3202). The originally described 20 bp exon 0 transcription start site, present in both human and murine ghrelin transcripts, is indicated by a pound mark (#).Back to article page