The emerging periplasm-localized subclass of AroQ chorismate mutases, exemplified by those from Salmonella typhimurium and Pseudomonas aeruginosa

Table 2 aroQ subtypes

Designation	Nature of gene product	Prior gene/
		protein names
aroQ	Monofunctional protein	aroQ_f/CM-F
^* aroQ	Periplasmic/secreted	aroQ_f/CM-F
•aroQ or aroQ•	Fused with another domain
Fusion examples
tyrA•aroQ•pheA	Archaeoglobus fulgidus
aroQ•pheA	Most Proteobacteria	AroQ _p ^†
aroQ•tyrA	Enteric bacteria	AroQ _t ^†
aroQ•aroD	Clostridium acetobutylicum
aroQ•aroA	Deinococcus, Bacillus,	AroQ _d
	Staphylococcus
aroA•aroQ	Porphyromonas gingivalis

^†The chorismate mutase domain (AroQ_p or AroQ_t) has also been designated CM-P or CM-T, respectively, in the older literature ([45] and see [22]). The rationale for terminology to facilitate genomic comparisons, including the convention of using a bullet to separate the domains of fusion proteins, was presented in Gu et al. [46].

ISSN: 1474-760X