Characterization of SP_1922. RNA-Seq expression coverage of SP_1922 and neighboring regions drawn using Artemis . RNA-Seq reads from TIGR4 adherent samples were mapped onto the TIGR4 genome. Predicted genes are shown in cyan on the bottom panel that displays the six frames of translation. Grey bars on the top panel represent RNA-Seq reads and the black plot below them represents the amount of read coverage, which is proportional to expression levels. The coverage plot across genes SP_1922 - SP_1926 is uninterrupted, indicating that these genes are likely to be expressed as an operon.