Fig. 1.
(a) Representative structures of compounds classified by their functional group modifications. Structures for all compounds are tabulated in Table 1. (b) DNA sequences used in this study.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.