Rz/Rz1 lysis gene equivalents in phages of Gram-negative hosts.

Abstract excerpt

Under usual laboratory conditions, lysis by bacteriophage lambda requires only the holin and endolysin genes, but not the Rz and Rz1 genes, of the lysis cassette. Defects in Rz or Rz1 block lysis only in the presence of high concentrations of divalent cations. The lambda Rz and Rz1 lysis genes are remarkable in that Rz1, encoding an outer membrane lipoprotein, is completely embedded in the +1 register within Rz,...

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