Fig. 6.

A G564 suspensor-specific cis-control module. Yellow box indicates the 47-bp suspensor cis-regulatory module (−873 to −827) from the fourth G564 150-bp repeat. Red, orange, and green arrows; purple ovals; and blue ovals indicate the 10-bp, 10-bp-like, and 10-bp-related motifs; Region 2 motif; and Fifth motif, respectively. An unknown transcription factor X (blue triangle) binds to the 10-bp, 10-bp-like and 10-bp-related motifs. An unknown transcription factor Y (orange oval) binds to the Region 2 motif. An unknown MYB-family transcription factor (green rectangle) binds to the Fifth motif. The X, Y and MYB transcription factors form a complex to recruit the basal transcriptional machinery that activates G564 transcription within the suspensor. BTF, basal transcriptional machinery; TATA, RNA polymerase II binding site