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The molecular characterization of two isoforms of 3-deoxy-d-manno-oct-2-ulosonate (KDO) -8-phosphate synthase (AtkdsA1 and AtkdsA2) from Arabidopsis is reported here. First, by isolating a full-length cDNA for AtkdsA1, it was confirmed that the deduced primary structures of AtkdsA1 and AtkdsA2 proteins were 93% identical. Functional expression and(More)
Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR/MS) is the best MS technology for obtaining exact mass measurements owing to its great resolution and accuracy, and several outstanding FT-ICR/MS-based metabolomics approaches have been reported. A reliable annotation scheme is needed to deal with direct-infusion FT-ICR/MS metabolic(More)
Suspension-cultured cell lines from plant species are useful for genetic engineering. However, maintenance of these lines is laborious, involves routine subculturing and hampers wider use of transgenic lines, especially when many lines are required for a high-throughput functional genomics application. Cryopreservation of these lines may reduce the need for(More)
We used four mutants having albino or pale green phenotypes with disrupted nuclear-encoded chloroplast proteins to analyze the regulatory system of metabolites in chloroplast. We performed an integrated analyses of transcriptomes and metabolomes of the four mutants. Transcriptome analysis was carried out using the Agilent Arabidopsis 2 Oligo Microarray, and(More)
Histidinol dehydrogenase (HDH) is one of the enzymes involved in the L-histidine biosynthesis pathway. HDH is a dimer that contains one Zn2+ ion in each identical subunit. In this study, we predicted a possible binding conformation of the intermediate L-histidinal, which is experimentally not known, using a computational modeling method and three potent HDH(More)
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