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. Author manuscript; available in PMC: 2012 Aug 13.
Published in final edited form as: IEEE/ACM Trans Comput Biol Bioinform. 2010 Jul-Sep;7(3):524–536. doi: 10.1109/TCBB.2008.101

Fig. 4.

Fig. 4

a) Visual explanation of why there are l − 2k forbidden placements of 2 XYk patterns when either x = 2 or y = 2. The terminal Y residue of the first pattern interferes with the initial X residue of the second pattern. b) Visual explanation of why there are l − 2k possible ways to place 2 XXk patterns when x = 3 in sequence motif analysis.