FIG. 1.
Organizational conservation of rpoN regions in denitrifying bacteria. ORFs are shown as arrow boxes to indicate the direction of transcription. Numbers of amino acids of the derived gene products are shown. Homologous components are indicated by identical patterns: ATP-binding proteins of ABC transporters (▨), modulators of ς54 function (▤), and PTS proteins, EIIA (▩). Information about the following organisms was taken from the following references: P. aeruginosa (9), B. japonicum (11), R. eutropha (22), A. brasilense (17). Incompletely sequenced ORFs are shown as open boxes.