In the June 2000 issue of Nature Biotechnology (18, 630–634), a web URL for access to the yeast signature data (Table 2) was omitted. These data are available in downloadable form at: http://www.lynxgen.com/yeast2000.htm

In the February 2000 issue of Nature Biotechnology (18, 181–186), “Analysis of vertebrate SCL loci identifies conserved enhancers,” Dr. A.M. Sinclair was inadvertently omitted from the list of authors.