You clicked somewhere within the circle defined by a center point at (128, 35),
and an edge point at (95, 16). The diagram is a crude representation of
RNA polymerase scanning a DNA molecule. The circle is drawn around what would
be a putative DNA binding domain.
The line in the imagemap file that defines what to do if you click within the
circle has the following syntax:
circle http://zenith.berkeley.edu/~seidel/ClrHlpr/glob1.html 128,35 95,16
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