Table 3

GC content of trpR genes compared to the GC content of the corresponding genomes

%GC

Organism

Genome

trpR

Chlamydia psittaci

42

37

Chlamydia trachomatis D

42

37

Escherichia coli

51

54

Salmonella typhimurium

55

54

Haemophilus influenzae

38

36

Vibrio cholerae

48

50

Enterobacter aerogenes

61

58

Yersinia pestis

50

51

Yersiniapseudotuberculosis

43

50

Pasteurella multocida

38

43

Actinobacillus actinomycetemcomitans

39

44

Xylella fastidiosa^*

54

34

Enterobacter cloacae

56

58

^*trpR from X. fastidiosa has been found to be part of a low-GC block of genes, for which there is strong evidence for lateral gene transfer (G.X., C.A.B., N. Keyhani, and R.A.J., unpublished observations).

Xie et al. Genome Biology 2002 3:research0051.1   doi:10.1186/gb-2002-3-9-research0051