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Table 1 Promoter comparison

From: NhaD type sodium/proton-antiporter of Halomonas elongata: a salt stress response mechanism in marine habitats?

promoter

Organism

-35 region

Spacer

-10 region

σ70 nhaD putative

H. elongata

aTGACg

18

TAgAAT

σ70 ectA putative

H. elongata

TTGAaA

18

TATgAT

σ70 consensus

E. coli

TTGACA

16–18

TATAAT

rpoH nhaD putative

H. elongata

tcGAAA

15

gCaATaT

rpoH consensus

E. coli

CTGAAA

11–16

CCCATnT

  1. Comparison of putative H. elongata promotor elements and E. coli consensus sequences for σ70 and rpoH dependent promoters: The putative σ70 ectA promoter was found by Göller [24], and recent umpublished Data from our group). Consensus sequences are according to the review of Wösten [23]. Bases identical to the consensus sequence are given in upper case, differing bases in lower case. Note that the undefined nucleotide (n) in the rpoH consensus and its equivalent are also given in lower case.