Figure 4 of
Kannabiran, Mol Vis 4:21, 1998.
Figure 4. Walker diagram of the exon 3 5' (donor) splice site and surrounding sequence
The Control sequence is at the top, showing the splice site at position 474 and the potential splice site at position 460. Bases in each splice site are shown in the corresponding WALKER diagram, with contribution to the average sequence conservation of the splice site indicated by the positive or negative height of the base. The arrow points to the mutant sequence with the G to A base change, showing the change from a positive contribution by the G to a negative contribution of the A.