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.
(A and B) Abundance of TTRs relative to signal transduction genes among bacterial (A) and archaeal (B) genomes. The dashed line indicates the average ratio of TTRs to signal transduction genes across all phyla. Bacterial and archaeal phyla are listed below their respective groups, with class following a semicolon. To view the supporting data, see File S7 in the supplemental material.
