© P. P. Papp, D. K. Chattoraj, and T. D. Schneider, Information Analysis of Sequences that Bind the Replication Initiator RepA, J. Mol. Biol., 233, 219-230, 1993.
This sequence logo represents how often each base pair appears at each position in a genetic sequence with the relative height of the letters, while the total height of a stack of letters represents the information content of that position in units of bits. The logo is a compact, easy-to-read summary of genetic information. (Unit: 9)