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  • Title: Pseudomonas aeruginosa exoenzyme S is a biglutamic acid ADP-ribosyltransferase.
    Author: Radke J, Pederson KJ, Barbieri JT.
    Journal: Infect Immun; 1999 Mar; 67(3):1508-10. PubMed ID: 10024602.
    Abstract:
    Kinetic analysis of two mutations within Pseudomonas aeruginosa exoenzyme S (ExoS) showed that a E379D mutation inhibited expression of ADP-ribosyltransferase activity but had little effect on the expression of NAD glycohydrolase activity while a E381D mutation inhibited expression of both activities. These data identify ExoS as a biglutamic acid ADP-ribosyltransferase, where E381 is the catalytic residue and E379 contributes to the transfer of ADP-ribose to the target protein.
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