Degradation of aromatic amino acids by Rhodococcus erythropolis |
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Authors: | A Suemori K Nakajima R Kurane Y Nakamura |
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Institution: | National Institute of Bioscience and Human-Technology (NIBH), Tsukuba, Ibaraki, Japan |
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Abstract: | A Gram-positive Rhodococcus erythropolis strain S1 was shown to assimilate aromatic amino acids such as L-phenylalanine, L-tyrosine, L-tryptophan, D-phenylalanine, D-tyrosine and D-tryptophan, which were utilized not only as the sole carbon source but also as a suitable nitrogen source. The highest growth on these aromatic amino acids occurred at a temperature of 30°C. L-Phenylalanine, L-tyrosine and L-tryptophan degradative pathways would appear to be independent, and to be induced alternatively. The strain S1 also showed the ability to assimilate peptides which consisted of only L-phenylalanine and L-tyrosine. |
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