Serine glyoxylate

Aminopeptidase, cytosol Aminopeptidase, leucine Aminopropyltransferase, putrescine Aminotransferase Aminotransferase, alanine Aminotransferase, aspartate Aminotransferase, glutamate-glyoxylate Aminotransferase, ornithine-keto acid Aminotransferase, serine-glyoxylate Ammonia... 

Brock et al. (1970) resolved serine glyoxylate aminotransferase after incubating this enzyme at pH 5.6 in the presence of the substrate, L-serine. After subsequent precipitation with ammonium sulfate and dialysis against phosphate buffer, the enzyme had no activity. The activity was considerably restored by PLP and to a much lesser extent by pyridoxamine-P (Brock et al., 1970). 

Serine glyoxylate Kidney bean Ser 0.7 8.0 HEPES Smith, (1973) ... 

Serine glyoxylate Spinach Ser 2.72 7.0 HEPES Rehfeld and Tolbert... 

Fig. 1. Main routes involved in the synthesis and interconversion of glycine and serine in plants. The various steps are numbered, and the necessary enzymes are as follows 1, glycolate oxidase, E.C. 1.1.3.1 2, aminotransferases, serine, E.C. 2.6.1.45, and glutamate, E.C. 2.6.1.4, glyoxylate aminotransferases 3, enzyme complex in mitochondria (see Fig. 2) 4, serine-glyoxylate aminotransferase, E.C. 2.6.1.45 5, glycerate dehydrogenase, E.C. 1.1.1.29 6, glycerate kinase E.C. 2.7.1.31 7, D-3-phosphoglycerate phosphatase, E.C. 3.1.3.38 8, d-3-phosphoglycerate dehydrogenase, E.C. 1.1.1.95 9, phosphoserine aminotransferase, E.C. 2.6.1.52 10, phosphoserine phosphatase, E.C. 3.1.3.3 11, serine hydroxymethyltransferase E.C. 2.1.2.1 12, nonenzymatic decarboxylation 13, formyl tetrahydrofolate synthetase, E.C. 6.3.4.3 14, isocitrate iyase, E.C. 4.1.3.1.

Serine glyoxylate aminotrans- A. thaliana Somerville and Ogren (1980b)... 

Somerville and Ogren (1980b) initially isolated a mutant of A. thaliana lacking peroxisomal serine glyoxylate aminotransferase. The mutant was detected by demonstrating that C02 accumulated in glycine and serine following photosynthesis in air. Similar mutant lines have also been detected in barley (Murray et al, 1987) and tobacco (Havir and McHale, 1988). 

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