Summary
The effect of phenylacetic acid (PAA) and several analogs on the activity of isopenicillin N synthase (IPNS) and acyl-CoA: 6-APA acyltransferase (AT) fromPenicillium chrysogenum Wis 54-1255 has been tested. Whereas the substitution on the ring of a hydrogen atom by hydroxy-, methyl- or methoxy- groups did not cause any effect, the presence of halogens (Cl or Br) at positions 3 and/or 4 of PAA strongly inhibited these two enzymes. The replacement of hydrogen atoms by fluorine in certain positions also caused inhibition, but to a lesser extent.
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Martínez-Blanco, H., Reglero, A. & Luengo, J.M. Inhibition of penicillin biosynthetic enzymes by halogen derivatives of phenylacetic acid. Journal of Industrial Microbiology 13, 144–146 (1994). https://doi.org/10.1007/BF01583998
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DOI: https://doi.org/10.1007/BF01583998