Table 2Putative flagellar genes and operons and associated promoter sequences

Gene/operonORFsPromoterbReference(s)
cheVc19–20σ80
tlpC82σ80
tlpA-Od99–100σ80, σ28
tlpB-O103–102σ80
flaBe115σ5442, 46
O-fliR174–172σ80
flgI-O-hp244246–244σ80
flgL295σ54
flgH-Δ-flaG325–327σ80
O-fliF-fliG-fliH-Δ-Δ-O350–356σ80
Δ-O-Δ-O-O-O-cheV-cheAY-cheW399–391σ80, σ28
O-Δ-hpaA408–410σ80
hpaA492?
fliN584σ80
hp599-Δ-Δ599–597σ80
flaA601σ2832
cheV-Δ-Δ-Δ-Δ616–620σ80
fliP-fliP684–685σ80
O-O-Δ-O-flgR698–703σ8042
Δ-O-Δ-rpoN717–714σ80
flaG-fliD-fliS751–753σ2829
Δ-flhB769–770?
hpaA797σ8027
Δ-Δ-Δ-fliL811–808σ80
O-Δ-motA-motB-O813–819σ80
flgE870σ5442
O-flgD-flgE′-O-Δ-Δ906–911σ5442
fliA-fliM-fliY-O-O1032–1028?
Δ-O-Δ-flhF1038–1034σ80
flbA(flhA)-O1041–1042?41
cheY-Δ-Δ-O-Δ-Δ-Δ1067–1073σ807
flgG1092σ80
O-flgK1120–1119σ5442
(Δ)4-(O)2-(Δ)8-pflA1260–1275σ80
O-Δ-Δ-fliI-fliQ1423–1418σ8040
fliE1557σ80
flgB-flgC1559–1558σ5442
Δ-flhB-Δ-Δ1574–1577σ80
flgG1585σ80, σ54
a

Numbers refer to the annotated open reading frame (ORF) sequences published by Tomb et al. (47).

b

Assignment to the three different sigma factors of H. pylori was according to similarities to the consensus sequences recognized by RNA polymerase containing σ80 (TTGACA-N17-TATAAT), σ54 (GG-N7-TTTGC), and σ28 (TAAA-N15-GCCGATAA). A question mark (?) indicates that a putative promoter could not be identified based on sequence analysis.

c

The Δ symbol indicates putative genes with functions unrelated to flagellar biosynthesis.

d

The O symbol indicates open reading frames with unknown functions.

e

Genes and operons for which a transcription start has been determined experimentally are in bold letters.

From: Chapter 21, Motility, Chemotaxis, and Flagella

Cover of Helicobacter pylori
Helicobacter pylori: Physiology and Genetics.
Mobley HLT, Mendz GL, Hazell SL, editors.
Washington (DC): ASM Press; 2001.
Copyright © 2001, ASM Press.

NCBI Bookshelf. A service of the National Library of Medicine, National Institutes of Health.