Inactivation of DNA-Binding Response Regulator Sak189 Abrogates β-Antigen Expression and Affects Virulence of Streptococcus agalactiaePublished in:PLoS ONE, 2010, v. 5, n. 4, p. 1, doi. 10.1371/journal.pone.0010212By:Rozhdestvenskaya, Anastasia S.;Totolian, Artem A.;Dmitriev, Alexander V.Publication type:Article