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.
Transformation of S. pneumoniae R6 mutant strains and a 2,500-CFU mutant library with pR410-mutagenized R6 DNA (A) or D39 ΔaliA chromosomal DNA (B). Transformation efficiencies are given as percentages relative to that of the 2,500-CFU mutant library. Data were obtained from three independent experiments and are presented as means ± standard deviations.
