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. 2019 Sep 6;10:2074. doi: 10.3389/fmicb.2019.02074

FIGURE 2.

FIGURE 2

Relationship between promoter sequences and the function of the corresponding gene. (A) The spacer lengths of S. lividans TK24. The spacer length was calculated for transcription start sites whose −10 and −35 elements were simultaneously discovered. (B) Differences in promoter sequences with different spacer length. (C) Functional analysis of genes exploiting two different types of promoter. Genes with 12 nt spacer are functionally enriched in COG category L, which represents DNA replication, recombination and repair. (D) Variation of −35 element sequence and spacer length dependent on the function of genes.