>

...tex2html_comment_mark⁵

Laboratory of Mathematical Biology, National Cancer Institute, Frederick Cancer Research and Development Center, P. O. Box B, Frederick, MD 21702-1201.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

...5⁶

Frederick High School, 650 Carroll Parkway, Frederick, MD 21701.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

...6⁷

Present address: University of Maryland, College Park, MD 20742.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

...tex2html_comment_mark⁸

Present address: University of Pittsburgh, Pittsburgh, PA 15213.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

...tex2html_comment_mark⁹

(301) 846-5581 (-5532 for messages), (301) 846-5598 fax, Internet address: toms@ncifcrf.gov, to whom correspondence should be addressed.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

...tex2html_comment_mark¹⁰

This section is necessary for a thorough understanding of how sequence logos work, but is not necessary for understanding their function. However, if your mathematical background includes the calculus, we would recommend that you wade through all of this.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

... pairs.¹¹

For a complete description of why this is so, see reference [16].

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.