Arch Microbiol (2006) DOI 10.1007/s00203-006-0095-7

Unfortunately, it escaped our attention that the same enzyme, though from another organism, had been described already 2 years earlier.

Wong BJ, Gerlt JA (2004) Evolution of function in the crotonase superfamily: (3S)-methylglutaconyl-CoA hydratase from Pseudomonas putida. Biochemistry 43:4646–4654.