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Table 3 Distribution of RNA regulatory elements for histidine metabolism in Firmicutes

From: Evolution of transcriptional regulation of histidine metabolism in Gram-positive bacteria

Order

Genera

Target genes

Count

T-boxes (129 genomes):

 Bacillales

Listeria

hisYZ*X

6

 Lactobacillales (106 genomes)

Lactobacillus, Lactococcus, Streptococcus, Enterococcus, Leuconostoc, Oenococcus, Aerococcus

his operon

56

Lactobacillus, Enterococcus, Leuconostoc, Oenococcus, Pediococcus, Weissella, Melissococcus

hisYZ*X

77

Alloiococcus, Dolosigranulum

yuiF

2

 Eubacteriales

Alkaliphilus, Clostridioides, Filifactor, Paraclostridium Peptostreptococcus, Peptacetobacter

hisXYZ*

7

 Erysipelotrichales (9 genomes)

Eubacterium, Allobaculum, S. pleomorphus, C. innoculum

his operon

7

Holdemania, Clostridium innoculum

hisXYZ*

3

 Natranaerobiales

Natranaerobius

hisC

1

TOTAL number of operons controlled by T-box(His):

 

159

RNA attenuators (17 genomes):

 Bacillales

Bacillus cereus group

his operon

6

 Eubacteriales

Lutispora; Peptostreptococcaceae: Acetoanaerobium, Clostridioides, Intestinibacter, Terrisporobacter

his operon

5

 Erysipelotrichales

Eggerthia, Erysipelatoclostridium, Catenibacterium, Coprobacillus, [Clostridium]

his operon

6

TOTAL number of operons controlled by T-box(His):

 

17

  1. The HisZ component of histidine ABC transporter is marked with asterisk to distinguish it from eponymous enzyme