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

Table 3 The presence of chorismate mutase and aromatic aminotransferase in the periplasmic fraction of Pseudomonas aeruginosa

^†Total enzyme activities are expressed as units (nmol of product permin) per 150 ml of culture. ^‡Prephenate dehydratase activity assayed in the absence of L-phenylalanine. ^§Prephenate dehydratase activity assayed in the presence of 1 mM L-phenylalanine. ^¶Calculated as 'Total PDT' minus '^*PheC'. DT,dehydratase; PDT, prephenate dehydratase; ^*PheC, cyclohexadienyl dehydratase; PheA, prephenate dehydratase domain of AroQPheA; AroQ, chorismate mutase domain of aroQPheA; ^*AroQ, periplasmic chorismate mutase; AAT, aromatic aminotransferase; SDH, shikimate dehydrogenase.

ISSN: 1474-760X