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. 2018 Apr 24;9:184. doi: 10.3389/fendo.2018.00184

Figure 1.

Figure 1

Mouse Kiss1 gene. Transcript variants of mouse Kiss1 are expressed from two different first exons, X3 (XM_006529681) and X4 (XM_006529682), that are regulated by cyclic AMP response element binding protein at a CRE (19). The transcriptional start site for Kiss1X3 and X4 is located in an exon of the Golt1a gene. Kiss1X1(XM_006529679) and X2 (XM_006529680) are regulated by ESR1 at an ERE (17). Kiss1 is a transcript including just the second and third exons (NM_178260.3). X1 and X3 include a larger second exon (including the shaded region) and X2 and X4 include a smaller second exon. All variants produce the KISS1 protein. KP-10 is the active region of all bioactive KISS1 peptides.