... Schneider¹ Frederick Cancer Research and Development Center, P. O. Box B, Building 144, Room 469, Frederick, MD 21702. email address: toms@alum.mit.edu http://www.lecb.ncifcrf.gov//

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...tex2html_comment_mark²

This is not visible in the sequence logo because both the sequences and their complements were used. It is visible when only one orientation is displayed, not shown.

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