Figure 1. Schematic of the Kcnq1 imprinted domain on mouse chromosome 7. Arrows indicate direction of transcription. Arrows above the genes represent maternal transcription, below the line paternal transcription and genes with two arrows have biallelic expression. Shown in the light gray box are the genes that are imprinted in both the embryo and placenta. Shown in the dark gray box are the Tnfrsf genes present in the mouse genome but absent in the human. They are transcribed in the same orientation as Cars.