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.
Determination of ppGpp level. (A) Transcriptional levels of the truncated form of relana in the mutant all1549Ωsp/sm compared to that in the wild type were analyzed at the indicated times after nitrogen step-down. (B) ppGpp level in Anabaena induced by amino acid starvation. SHX was used at the final concentration 1 g liter−1. Data shown are representative of the results of two independent experiments.
