Alanine Aminotransferase Variants Conferring Diverse NUE Phenotypes in Arabidopsis thaliana
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منابع مشابه
Alanine Aminotransferase Variants Conferring Diverse NUE Phenotypes in Arabidopsis thaliana
Alanine aminotransferase (AlaAT, E.C. 2.6.1.2), is a pyridoxal-5'-phosphate-dependent (PLP) enzyme that catalyzes the reversible transfer of an amino group from alanine to 2-oxoglutarate to produce glutamate and pyruvate, or vice versa. It has been well documented in both greenhouse and field studies that tissue-specific over-expression of AlaAT from barley (Hordeum vulgare, HvAlaAT) results in...
متن کاملAlanine aminotransferase catalyses the breakdown of alanine after hypoxia in Arabidopsis thaliana.
Alanine aminotransferase (AlaAT) catalyses the reversible transfer of an amino group from glutamate to pyruvate to form 2-oxoglutarate and alanine. The regulation of AlaAT in several plant species has been studied in response to low-oxygen stress, light and nitrogen application. In this study, induction of Arabidopsis AlaAT1 and AlaAT2 during hypoxia was observed at the transcriptional level, a...
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At least two glyoxylate aminotransferases are hypothesized to participate in the steps of photorespiration located in peroxisomes. Until recently, however, genes encoding these enzymes had not been identified. We describe the isolation and characterization of an alanine : glyoxylate aminotransferase (AGT1, formerly AGT) cDNA from Arabidopsis thaliana. Southern blot analysis confirmed that Arabi...
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An examination of the subcellular distribution of alanine aminotransferase activity in pig cardiac tissue showed that about 10% of the total activity was bound to particulate material, with the highest specific activity in the sarcosomal fraction. The soluble enzyme was obtained in a high state of purity, as indicated by sedimentation velocity, starch gel electrophoresis, and spectral analyses....
متن کاملAlanine aminotransferase homologs catalyze the glutamate:glyoxylate aminotransferase reaction in peroxisomes of Arabidopsis.
Plant peroxisomal glyoxylate aminotransferases play central roles within the photorespiratory pathway. Genes encoding glyoxylate aminotransferases have been isolated from several animals and microbes, but only recently have plant homologs been identified. Three Arabidopsis homologs of alanine (Ala):glyoxylate aminotransferase 2 (AGT2) contain a putative type 1 peroxisomal targeting signal (PTS1...
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ژورنال
عنوان ژورنال: PLOS ONE
سال: 2015
ISSN: 1932-6203
DOI: 10.1371/journal.pone.0121830