Effects of expressing E. coli threonine synthase in tobacco (Nicotiana tabacum L.) suspension culture cells on free amino acid levels, aspartate pathway enzyme activities and uptake of aspartate into the cells

Aarnes, 1978, Regulation of threonine biosynthesis in barely seedlings (Hordeum vulgare L.), Planta, 140, 185, 10.1007/BF00384919 Aarnes, 1980, Biosynthesis of the thioester cystathionine in barely seedlings, Plant Sci. Let., 19, 81, 10.1016/0304-4211(80)90011-5 An, 1985, High efficiency transformation of cultured tobacco cells, Plant Physiol., 79, 568, 10.1104/pp.79.2.568 Anderson, 1986, Synthesis of the small subunit of ribulose-bisphosphate carboxylase from genes cloned into plasmids containing the SP6 promoter, Biochem J., 240, 709, 10.1042/bj2400709 Azevedo, 1992, Aspartate kinase regulation in maize — evidence for co-purification of threonine-sensitive aspartate kinase and homoserine dehydrogenase, Phytochemistry, 31, 3731, 10.1016/S0031-9422(00)97517-4 Black, 1955, Aspartic β-semialdehyde dehydrogenase and aspartic β-semialdehyde, J. Biol. Chem., 213, 39, 10.1016/S0021-9258(18)71042-9 Bryan, 1990, Advances in the biochemistry of amino acid biosynthesis, Volume 16, 161 Davies, 1977, Aspartate kinase from carrot cell suspension culture, Plant Sci. Let., 2, 323, 10.1016/0304-4211(77)90103-1 Farrington, 1993, Threonine synthase of Eschericia coli: Inhibition by classical and slow-binding analogues of homoserine phosphate, Arch. Biochem. Biophys., 307, 165, 10.1006/abbi.1993.1575 Feinberg, 1983, A technique for radiolabeling DNA restriction enzyme fragments to high specific activity, Anal. Biochem., 132, 6, 10.1016/0003-2697(83)90418-9 Frisch, 1991, Isolation and characterization of dihydrodipicolinate synthase from maize, Plant Physiol., 96, 444, 10.1104/pp.96.2.444 Ghislain, 1994, Molecular analysis of aspartate kinase-homoserine dehydrogenase gene from Arabidopsis thaliana, Plant Mol. Biol., 24, 835, 10.1007/BF00014439 Giovanelli, 1988, In vivo regulation of threonine and isoleucine biosynthesis in Lemna paucicostata Hegelm. 6746, Plant Physiol., 86, 369, 10.1104/pp.86.2.369 Giovanelli, 1989, Regulatory structure of the biosynthetic pathway for the aspartate family of amino acids in Lemna paucicostata Hegelm. 6746, with special reference to the role of aspartokinase, Plant Physiol., 90, 1584, 10.1104/pp.90.4.1584 Giovanelli, 1986, Effects of orthophosphate and adenosine 5′-phosphate on threonine synthase and cystathionine γ-synthase of Lemna paucicostata Hegelm. 6746, Plant Physiol., 81, 577, 10.1104/pp.81.2.577 Giovanelli, 1984, Threonine synthase of Lemna paucicostata Hegelm. 6746, Plant Physiol., 76, 285, 10.1104/pp.76.2.285 Hibberd, 1980, Selection and characterization of a feedback-insensitive tissue culture of maize, Planta, 148, 183, 10.1007/BF00386420 Kreft, 1994, Purification and properties of cystathionine γ-synthase from wheat (Triticum aestivum L.), Plant Physiol., 104, 1215, 10.1104/pp.104.4.1215 Madison, 1976, Threonine synthase from higher plants: stimulation by S-adenosylmethionine and inhibition by cysteine, Biochem. Biophys. Res. Comm., 71, 684, 10.1016/0006-291X(76)90842-1 Matthews, 1990, Purification and interconversion of homoserine dehydrogenase from Daucus carota cell suspension cultures, Plant Physiol., 91, 1569, 10.1104/pp.91.4.1569 Muehlbauer, 1994, Molecular genetics of the maize (Zea mays L.) aspartate kinase homoserine dehydrogenase gene family, Plant Physiol., 106, 1303, 10.1104/pp.106.4.1303 Muhitch, 1993, In vitro metabolism of L-aspartate by maize kernels, Phytochemistry, 32, 1125, 10.1016/S0031-9422(00)95076-3 Muhitch, 1983, Chloroplasts are the subcellular location of both soluble and membrane-associated homoserine kinases in pea (Pisum sativum L.) leaves, Z. Pflanzenphysiol., 100, 39, 10.1016/S0044-328X(83)80213-X Parsot, 1983, Nucleotide sequence of thrC and of the transcription termination region of the threonine operon in Escherichia coli K12, Nucl. Acids Res., 11, 7331, 10.1093/nar/11.21.7331 Rognes, 1986, Effects of exogenous amino acids on growth and activity of four aspartate pathway enzymes in barley, Plant Sci., 43, 45, 10.1016/0168-9452(86)90106-8 Sambrook, 1989 Shames, 1984, Interaction of aspartate and aspartate-derived antimetabolites with the enzymes of the threonine biosynthetic pathway of Escherichia coli, J. Biol. Chem., 259, 15331, 10.1016/S0021-9258(17)42554-3 Shaul, 1992, Threonine overproduction in transgenic tobacco plants expressing a mutant desensitized aspartate kinase of Escherichia coli, Plant Physiol., 100, 1157, 10.1104/pp.100.3.1157 Szczesiul, 1976, Regulation of a metabolic system in vitro: Synthesis of threonine from aspartic acid, Biochemistry, 15, 2236, 10.1021/bi00655a033 Theon, 1978, Biosynthesis of threonine from homoserine in pea seedlings: II. Threonine synthase, Plant Sci. Let., 13, 113, 10.1016/0304-4211(78)90238-9 Thompson, 1982, Inhibition of cystathionine γ-synthase by proparglycine, Plant Physiol., 70, 1347, 10.1104/pp.70.5.1347 Thompson, 1982, Methionine biosynthesis in Lemna. Studies on the regulation of cystathionine γ-synthase, O-phosphohomoserine sulfhydrolase, and O-acetylserinesulfhydrylase, Plant Physiol., 69, 1077, 10.1104/pp.69.5.1077 Umbarger, 1978, Amino acid biosynthesis and its regulation, Annu. Rev. Biochem., 47, 533, 10.1146/annurev.bi.47.070178.002533 Walkerpeach, 1994, Agrobacterium-mediated gene transfer to plant cells: cointegrate and binary vector systems, B1 Walkerpeach, 1994, Agrobacterium-mediated gene transfer to plant cells: cointegrate and binary vector systems, 1 Wilson, 1991, Bifunctional protein in carrot contains both aspartokinase and homoserine dehydrogenase activities, Plant Physiol., 97, 1323, 10.1104/pp.97.4.1323