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phenylalanine/arabidopsis
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Phenylalanine ammonia lyase from Arabidopsis thaliana (AtPAL2): A potent MIO-enzyme for the synthesis of non-canonical aromatic alpha-amino acids.: Part II: Application in different reactor concepts for the production of (S)-2-chloro-phenylalanine.
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Phenylalanine ammonia lyase (PAL) from Arabidopsis thaliana (AtPAL2) is in general a very good catalyst for the amination of fluoro- and chloro-cinnamic acid derivatives yielding halogenated (S)-phenylalanine derivatives with ≥85% conversion and excellent ee values >99%. We have studied the
Prephenate aminotransferase directs plant phenylalanine biosynthesis via arogenate.
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The aromatic amino acids L-phenylalanine and L-tyrosine and their plant-derived natural products are essential in human and plant metabolism and physiology. Here we identified Petunia hybrida and Arabidopsis thaliana genes encoding prephenate aminotransferases (PPA-ATs), thus completing the
Tissue and method specificities of phenylalanine ammonia-lyase assay.
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A large number of studies have estimated phenylalanine ammonia-lyase (PAL) activity because it strongly reacts to various stimuli. Activity of this enzyme has been assayed mainly by means of spectrophotometry, but the precision of this method is poorly known. We compared assays of PAL activity using
Phenylalanine roles in the seed-to-seedling stage: Not just an amino acid.
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Phenylalanine is an aromatic amino acid that provides the carbon skeleton for the phenylpropanoid pathway, making many diverse chemicals used for structure, defense, and yet undiscovered functions. The identification of the arogenate dehydratase (ADT) enzymes in the genetic model Arabidopsis
Characterization of some major identity elements in plant alanine and phenylalanine transfer RNAs.
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Alanine and phenylalanine tRNA sequences were amplified by PCR from Arabidopsis thaliana nuclear DNA using degenerate oligonucleotides which introduced specific mutations into the acceptor stem. The aminoacylation of T7 RNA polymerase transcripts of these sequences was investigated in vitro using
Molecular cloning, expression and characterization of a phenylalanine ammonia-lyase gene (SmPAL1) from Salvia miltiorrhiza.
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Phenylalanine ammonia-lyase (PAL) is one of the branch point enzymes between primary and secondary metabolism. It plays an important role during plant development and defense. A PAL gene designated as SmPAL1 was cloned from Salvia miltiorrhiza using genome walking technology. The full-length SmPAL1
Adequate phenylalanine synthesis mediated by G protein is critical for protection from UV radiation damage in young etiolated Arabidopsis thaliana seedlings.
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Etiolated Arabidopsis thaliana seedlings, lacking a functional prephenate dehydratase1 gene (PD1), also lack the ability to synthesize phenylalanine (Phe) and, as a consequence, phenylpropanoid pigments. We find that low doses of ultraviolet (UV)-C (254 nm) are lethal and low doses of UV-B cause
Progesterone 5β-reductases/iridoid synthases (PRISE): gatekeeper role of highly conserved phenylalanines in substrate preference and trapping is supported by molecular dynamics simulations.
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Vein Patterning 1 (VEP1)-encoded progesterone 5β-reductases/iridoid synthases (PRISE) belong to the short-chain dehydrogenase/reductase superfamily of proteins. They are characterized by a set of highly conserved amino acids in the substrate-binding pocket. All PRISEs are capable of reducing the
Design and application of an in vivo reporter assay for phenylalanine ammonia-lyase.
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Phenylalanine ammonia-lyase (PAL) is an important enzyme that links primary metabolism to secondary metabolism. Its efficiency is often a critical factor that affects the overall flux of a related metabolic pathway, the titer of the final products, and the efficacy of PAL-based therapies. Thus, PAL
Cytochrome P450 CYP79A2 from Arabidopsis thaliana L. Catalyzes the conversion of L-phenylalanine to phenylacetaldoxime in the biosynthesis of benzylglucosinolate.
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Glucosinolates are natural plant products gaining increasing interest as cancer-preventing agents and crop protectants. Similar to cyanogenic glucosides, glucosinolates are derived from amino acids and have aldoximes as intermediates. We report cloning and characterization of cytochrome P450 CYP79A2
Pleiotropic physiological consequences of feedback-insensitive phenylalanine biosynthesis in Arabidopsis thaliana.
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A large proportion of plant carbon flow passes through the shikimate pathway to phenylalanine, which serves as a precursor for numerous secondary metabolites. To identify new regulatory mechanisms affecting phenylalanine metabolism, we isolated Arabidopsis thaliana mutants that are resistant to the
Arabidopsis Kelch repeat F-box proteins regulate phenylpropanoid biosynthesis via controlling the turnover of phenylalanine ammonia-lyase.
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Phenylalanine ammonia-lyase (PAL) catalyzes the first rate-limiting step in the phenylpropanoid pathway, which controls carbon flux to a variety of bioactive small-molecule aromatic compounds, and to lignin, the structural component of the cell wall. PAL is regulated at both the transcriptional and
G-protein-coupled receptor 1, G-protein Galpha-subunit 1, and prephenate dehydratase 1 are required for blue light-induced production of phenylalanine in etiolated Arabidopsis.
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Different classes of plant hormones and different wavelengths of light act through specific signal transduction mechanisms to coordinate higher plant development. A specific prephenate dehydratase protein (PD1) was discovered to have a strong interaction with the sole canonical G-protein
The phenylalanine ammonia-lyase gene family in Arabidopsis thaliana.
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Phenylpropanoid derivatives are a complex class of secondary metabolites that have many important roles in plants during normal growth and in responses to environmental stress. Phenylalanine ammonialyase (PAL) catalyzes the first step in the biosynthesis of phenylpropanoids, and is usually encoded
Molecular cloning and sequence analysis of a phenylalanine ammonia-lyase gene from dendrobium.
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In this study, a phenylalanine ammonia-lyase (PAL) gene was cloned from Dendrobium candidum using homology cloning and RACE. The full-length sequence and catalytic active sites that appear in PAL proteins of Arabidopsis thaliana and Nicotiana tabacum are also found: PAL cDNA of D. candidum
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