Isolation and characterization of the Azospirillum brasilense trpE(G) gene, encoding anthranilate synthase. 1997

P De Troch, and F Dosselaere, and V Keijers, and P de Wilde, and J Vanderleyden
F.A. Janssens Laboratory of Genetics, Department of Applied Plant Sciences, Katholieke Universiteit Leuven, Belgium.

The Azospirillum brasilense trpE gene has been isolated by DNA hybridization and by genetic complementation of an Escherichia coli trpE deletion mutant. DNA sequence analysis of a 3.1-kb PstI restriction fragment of A. brasilense revealed the presence of an open reading frame encoding a putative TrpE(G) fusion protein. Previously an A. brasilense clone containing trpGDC was identified (Zimmer et al. Mol Gen Genet 229:41-51, 1991). It can, therefore, be concluded that A. brasilense contains two trpG genes. A putative leader peptide is found upstream of trpE(G), containing three consecutive tryptophan residues. Putative terminator and anti-terminator loops have also been identified. The LLESX10S motif, which is responsible for feedback inhibition by tryptophan in other TrpE proteins, is absent in the A. brasilense TrpE(G) fused protein.

UI MeSH Term Description Entries
D008969 Molecular Sequence Data Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories. Sequence Data, Molecular,Molecular Sequencing Data,Data, Molecular Sequence,Data, Molecular Sequencing,Sequencing Data, Molecular
D009690 Nucleic Acid Conformation The spatial arrangement of the atoms of a nucleic acid or polynucleotide that results in its characteristic 3-dimensional shape. DNA Conformation,RNA Conformation,Conformation, DNA,Conformation, Nucleic Acid,Conformation, RNA,Conformations, DNA,Conformations, Nucleic Acid,Conformations, RNA,DNA Conformations,Nucleic Acid Conformations,RNA Conformations
D009876 Operon In bacteria, a group of metabolically related genes, with a common promoter, whose transcription into a single polycistronic MESSENGER RNA is under the control of an OPERATOR REGION. Operons
D012045 Regulatory Sequences, Nucleic Acid Nucleic acid sequences involved in regulating the expression of genes. Nucleic Acid Regulatory Sequences,Regulatory Regions, Nucleic Acid (Genetics),Region, Regulatory,Regions, Regulatory,Regulator Regions, Nucleic Acid,Regulatory Region,Regulatory Regions
D003001 Cloning, Molecular The insertion of recombinant DNA molecules from prokaryotic and/or eukaryotic sources into a replicating vehicle, such as a plasmid or virus vector, and the introduction of the resultant hybrid molecules into recipient cells without altering the viability of those cells. Molecular Cloning
D005798 Genes, Bacterial The functional hereditary units of BACTERIA. Bacterial Gene,Bacterial Genes,Gene, Bacterial
D000595 Amino Acid Sequence The order of amino acids as they occur in a polypeptide chain. This is referred to as the primary structure of proteins. It is of fundamental importance in determining PROTEIN CONFORMATION. Protein Structure, Primary,Amino Acid Sequences,Sequence, Amino Acid,Sequences, Amino Acid,Primary Protein Structure,Primary Protein Structures,Protein Structures, Primary,Structure, Primary Protein,Structures, Primary Protein
D000878 Anthranilate Synthase An enzyme that catalyzes the formation of anthranilate (o-aminobenzoate) and pyruvic acid from chorismate and glutamine. Anthranilate is the biosynthetic precursor of tryptophan and numerous secondary metabolites, including inducible plant defense compounds. EC 4.1.3.27. Anthranilate Synthetase,Anthranilate Synthase Component I,Synthase, Anthranilate,Synthetase, Anthranilate
D012329 RNA, Bacterial Ribonucleic acid in bacteria having regulatory and catalytic roles as well as involvement in protein synthesis. Bacterial RNA
D012333 RNA, Messenger RNA sequences that serve as templates for protein synthesis. Bacterial mRNAs are generally primary transcripts in that they do not require post-transcriptional processing. Eukaryotic mRNA is synthesized in the nucleus and must be exported to the cytoplasm for translation. Most eukaryotic mRNAs have a sequence of polyadenylic acid at the 3' end, referred to as the poly(A) tail. The function of this tail is not known for certain, but it may play a role in the export of mature mRNA from the nucleus as well as in helping stabilize some mRNA molecules by retarding their degradation in the cytoplasm. Messenger RNA,Messenger RNA, Polyadenylated,Poly(A) Tail,Poly(A)+ RNA,Poly(A)+ mRNA,RNA, Messenger, Polyadenylated,RNA, Polyadenylated,mRNA,mRNA, Non-Polyadenylated,mRNA, Polyadenylated,Non-Polyadenylated mRNA,Poly(A) RNA,Polyadenylated mRNA,Non Polyadenylated mRNA,Polyadenylated Messenger RNA,Polyadenylated RNA,RNA, Polyadenylated Messenger,mRNA, Non Polyadenylated

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