Identification and characterization of the last two unknown genes, dapC and dapF, in the succinylase branch of the L-lysine biosynthesis of Corynebacterium glutamicum

Hartmann M, Tauch A, Eggeling L, Bathe B, Mockel B, Pühler A, Kalinowski J (2003)
J Biotechnol 104(1-3): 199-211.

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Abstract
The inspection of the complete genome sequence of Corynebacterium glutamicum ATCC 13032 led to the identification of dapC and dapF, the last two unknown genes of the succinylase branch of the L-lysine biosynthesis. The deduced DapF protein of C glutamicum is characterized by a two-domain structure and a conserved diaminopimelate (DAP) epimerase signature. Overexpression of dapF resulted in an 8-fold increase of the specific epimerase activity. A defined deletion in the dapF gene led to a reduced growth of C glutamicum in a medium with excess carbon but limited ammonium availability. The predicted DapC protein of C glutamicum shared 29% identical amino acids with DapC from Bordetella pertussis, the only enzymatically characterized N-succinyl-aminoketopimelate aminotransferase. Overexpression of the dapC gene in C glutamicum resulted in a 9-fold increase of the specific aminotransferase activity. A C glutamicum mutant with deleted dapC showed normal growth characteristics with excess carbon and limited ammonium. Even a mutation of the two genes dapC and ddh, interrupting both branches of the split pathway, could be established in C glutamicum. Overexpression of the dapF or the dapC gene in an industrial C. glutamicum strain resulted in an increased L-lysine production, indicating that both genes might be relevant targets for the development of improved production strains. (C) 2003 Elsevier B.V. All rights reserved.
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Hartmann M, Tauch A, Eggeling L, et al. Identification and characterization of the last two unknown genes, dapC and dapF, in the succinylase branch of the L-lysine biosynthesis of Corynebacterium glutamicum. J Biotechnol. 2003;104(1-3):199-211.
Hartmann, M., Tauch, A., Eggeling, L., Bathe, B., Mockel, B., Pühler, A., & Kalinowski, J. (2003). Identification and characterization of the last two unknown genes, dapC and dapF, in the succinylase branch of the L-lysine biosynthesis of Corynebacterium glutamicum. J Biotechnol, 104(1-3), 199-211.
Hartmann, M., Tauch, A., Eggeling, L., Bathe, B., Mockel, B., Pühler, A., and Kalinowski, J. (2003). Identification and characterization of the last two unknown genes, dapC and dapF, in the succinylase branch of the L-lysine biosynthesis of Corynebacterium glutamicum. J Biotechnol 104, 199-211.
Hartmann, M., et al., 2003. Identification and characterization of the last two unknown genes, dapC and dapF, in the succinylase branch of the L-lysine biosynthesis of Corynebacterium glutamicum. J Biotechnol, 104(1-3), p 199-211.
M. Hartmann, et al., “Identification and characterization of the last two unknown genes, dapC and dapF, in the succinylase branch of the L-lysine biosynthesis of Corynebacterium glutamicum”, J Biotechnol, vol. 104, 2003, pp. 199-211.
Hartmann, M., Tauch, A., Eggeling, L., Bathe, B., Mockel, B., Pühler, A., Kalinowski, J.: Identification and characterization of the last two unknown genes, dapC and dapF, in the succinylase branch of the L-lysine biosynthesis of Corynebacterium glutamicum. J Biotechnol. 104, 199-211 (2003).
Hartmann, M, Tauch, Andreas, Eggeling, L, Bathe, B, Mockel, B, Pühler, Alfred, and Kalinowski, Jörn. “Identification and characterization of the last two unknown genes, dapC and dapF, in the succinylase branch of the L-lysine biosynthesis of Corynebacterium glutamicum”. J Biotechnol 104.1-3 (2003): 199-211.
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