Campylobacterales

Campylobacterales
	Campylobacter jejuni bacteria
Scientific classification
Domain:	Bacteria
Phylum:	Campylobacterota
Class:	"Campylobacteria"; Waite et al. 2017
Order:	Campylobacterales; Garrity et al. 2006
Families and genera
	Arcobacteraceae Waite et al. 2020 Aliarcobacter; Arcobacter; Halarcobacter; Malaciobacter; "Ca. Marinarcus"; Poseidonibacter; Pseudarcobacter; ; Campylobacteraceae Vandamme and De Ley 1991 Campylobacter; Dehalospirillum; "Geospirillum"; Sulfurospirillum; ; Helicobacteraceae Garrity et al. 2006 "Flexispira"; Helicobacter; "Pseudohelicobacter"; Sulfuricurvum; Sulfurimonas; Sulfurovum; Thiovulum; Wolinella; ; Hydrogenimonadaceae Waite et al. 2020 Hydrogenimonas; ; "Candidatus Thiobarbaceae" Assie et al. 2020 "Ca. Thiobarba"; ; Genera not assigned to a family Nitratifractor; Thiofractor; ;

The Campylobacterales are an order of Campylobacterota which make up the epsilon subdivision, together with the small family Nautiliaceae. They are Gram-negative. Most of the species are microaerophilic.^[1]

Molecular signatures

Comparative genomic analysis has led to the identification of 49 proteins which are uniquely found in virtually all species of the order Campylobacterales. Additionally, two conserved signature indels have been identified which, along with the proteins, serve as molecular markers for the order. The indels are a three-amino-acid insertion in the B protein of the Uvr ABC system, and a two-amino-acid deletion in phenylalanyl-tRNA synthetase.^[2]

References

^ Garrity, George M.; Brenner, Don J.; Krieg, Noel R.; Staley, James T. (eds.) (2005). Bergey's Manual of Systematic Bacteriology, Volume Two: The Proteobacteria, Part C: The Alpha-, Beta-, Delta-, and Epsilonproteobacteria. New York, New York: Springer. ISBN 978-0-387-24145-6.
^ Gupta, R. S. (2006). Molecular signatures (unique proteins and conserved indels) that are specific for the epsilon proteobacteria. BMC Genomics. 7:167.

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[Bergey-1] Garrity, George M.; Brenner, Don J.; Krieg, Noel R.; Staley, James T. (eds.) (2005). Bergey's Manual of Systematic Bacteriology, Volume Two: The Proteobacteria, Part C: The Alpha-, Beta-, Delta-, and Epsilonproteobacteria. New York, New York: Springer. ISBN 978-0-387-24145-6.

[2] Gupta, R. S. (2006). Molecular signatures (unique proteins and conserved indels) that are specific for the epsilon proteobacteria. BMC Genomics. 7:167.

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