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.
Clustering of essential genes based on Cluster of Orthologous Groups (COG) functional classes. (a) Proportion of each class in the essential gene set, with the number of genes next to the bars; (b) log-fold enrichment of COG classes, calculated as the ratio of the proportion of a given class in the essential gene set to its overall proportion in the genome.
