G A SprengerSummaryCountry: Germany Publications
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Publications
Identification of a thiamin-dependent synthase in Escherichia coli required for the formation of the 1-deoxy-D-xylulose 5-phosphate precursor to isoprenoids, thiamin, and pyridoxolG A Sprenger
Institut für Biotechnologie 1 des Forschungszentrums Jülich, Germany
Proc Natl Acad Sci U S A 94:12857-62. 1997....
Transaldolase B of Escherichia coli K-12: cloning of its gene, talB, and characterization of the enzyme from recombinant strainsG A Sprenger
Institut für Biotechnologie 1, Forschungszentrum Julich GmbH, Julich, Germany
J Bacteriol 177:5930-6. 1995..Fructose acted as a C(3) donor at a high apparent K(m) (>/=M) and with a V(rel) of 12%. The enzyme was inhibited by Tris-HCl, phosphate, or sugars with the L configuration at C(2) (L-glyceraldehyde, D-arabinose-5-phosphate)...
Zymomonas mobilis squalene-hopene cyclase gene (shc): cloning, DNA sequence analysis, and expression in Escherichia coliI G Reipen
Institut fur Biotechnologie, Forschungszentrums Jülich GmbH, Germany
Microbiology 141:155-61. 1995..These regions contained the core motif Gln-X-X-X-Gly-X-Trp...
Specificity of signal peptide recognition in tat-dependent bacterial protein translocationN Blaudeck
, , , Germany
J Bacteriol 183:604-10. 2001..Such a situation is in marked contrast to the situation that is known to exist for Sec-dependent protein translocation...
Identification of catalytically important residues in the active site of Escherichia coli transaldolaseU Schörken
Institut für Biotechnologie 1, Forschungszentrum Julich GmbH, Germany
Eur J Biochem 268:2408-15. 2001....
Crystallization and preliminary X-ray crystallographic studies of recombinant thermoresistant gluconate kinase GntK from Escherichia coliL Kraft
Molecular Structural Biology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, SE 171 77 Stockholm, Sweden
Acta Crystallogr D Biol Crystallogr 57:1159-61. 2001..1, c = 78.9 A (P2(1)2(1)2). In all three crystal forms, there are two molecules in the asymmetric unit; the different forms occur in the same crystallization drop. The crystals diffract to at least 2.0 A using synchrotron radiation...
Characterization of a new feedback-resistant 3-deoxy-D-arabino-heptulosonate 7-phosphate synthase AroF of Escherichia coliR Jossek
Institut für Biotechnologie 1, Forschungszentrum Jülich GambH, Germany
FEMS Microbiol Lett 202:145-8. 2001..These results strongly suggest that the N-terminus of AroF is involved in the molecular interactions occurring in the feedback-inhibition mechanism...
Crystal structures of the precursor form of glucose-fructose oxidoreductase from Zymomonas mobilis and its complexes with bound ligandsD Nurizzo
School of Biological Sciences, University of Auckland, Auckland, New Zealand
Biochemistry 40:13857-67. 2001..In this conformational change, the Lys181 side chain moves closer to the nicotinamide ring, stabilized by its increased negative charge...
Fully integrated L-phenylalanine separation and concentration using reactive-extraction with liquid-liquid centrifuges in a fed-batch process with E. coliN Rüffer
Institute of Biotechnology, Forschungszentrum Julich GmbH, 52425 Juelich, Germany
Bioprocess Biosyst Eng 26:239-48. 2004..Thus, the ISPR approach is superior to the reference non-ISPR process and even offers extraction rates approximately three times higher than the published membrane-based process...
Fructose-6-phosphate aldolase is a novel class I aldolase from Escherichia coli and is related to a novel group of bacterial transaldolasesM Schurmann
Institut für Biotechnologie 1, Forschungszentrum Julich GmbH, D 52425 Julich, Germany
J Biol Chem 276:11055-61. 2001..Another fsa-related gene, talC of Escherichia coli, was shown to also encode fructose-6-phosphate aldolase activity and not a transaldolase as proposed earlier...
Location of the transketolase (tkt) gene on the Escherichia coli physical mapG A Sprenger
, Germany
J Bacteriol 174:1707-8. 1992
Crystal structure of the reduced Schiff-base intermediate complex of transaldolase B from Escherichia coli: mechanistic implications for class I aldolasesJ Jia
Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm, Sweden
Protein Sci 6:119-24. 1997..The C3 hydroxyl group interacts with the side chain of Asp 17 and Asn 35. Based on the crystal structure of this complex a reaction mechanism for transaldolase is proposed...
Cloning, nucleotide sequence, and functional expression of the Escherichia coli enolase (eno) gene in a temperature-sensitive eno mutant strainM Klein
Institut für Biotechnologie 1, Forschungszentrum Julich GmbH, Germany
DNA Seq 6:351-5. 1996..Expression of the eno gene under the control of the lac promoter/operator resulted in an IPTG-inducible production of enzymatically active enolase in wild-type and enolase mutant strains...
Crystal structure of transaldolase B from Escherichia coli suggests a circular permutation of the alpha/beta barrel within the class I aldolase familyJ Jia
Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm, Sweden
Structure 4:715-24. 1996....
Genetics of pentose-phosphate pathway enzymes of Escherichia coli K-12G A Sprenger
Institut für Biotechnologie 1, Forschungszentrum Julich GmbH
Arch Microbiol 164:324-30. 1995..In recent years, genes for all enzymes of the pathway have been cloned and sequenced. Isoenzymes have been found for transketolase (genes tktA and tktB), ribose-5-phosphate isomerase (rpiA and rpiB) and transaldolase (talA and talB)...
Two open reading frames adjacent to the Escherichia coli K-12 transketolase (tkt) gene show high similarity to the mannitol phosphotransferase system enzymes from Escherichia coli and various gram-positive bacteriaG A Sprenger
Forschungszentrum Julich GmbH, Institut für Biotechnologie 1, Germany
Biochim Biophys Acta 1158:103-6. 1993..High similarity to the Enzymes IIMtl of Escherichia coli K-12 (gene mtlA) and of Staphylococcus carnosus was detected, but the two genes did not complement mannitol-negative E. coli mutants without the use of a heterologous promoter...
Nucleotide sequence of the Escherichia coli K-12 transketolase (tkt) geneG A Sprenger
Forschungszentrum Julich GmbH, Institut für Biotechnologie 1, Julich, Germany
Biochim Biophys Acta 1216:307-10. 1993..The DNA-derived protein sequence showed 49.5% identical amino acid residues with the transketolase of Rhodobacter sphaeroides, 46.8% identity with the enzyme from Saccharomyces cerevisiae, and 28.9% identity with the human transketolase...
Stimulation, monitoring, and analysis of pathway dynamics by metabolic profiling in the aromatic amino acid pathwayM Oldiges
Institute of Biotechnology, Forschungszentrum Julich GmbH, 52425 Julich, Germany
Biotechnol Prog 20:1623-33. 2004..The results underline the necessity to extend the focus of glucose pulse experiments by studying not only the central metabolism but also anabolic pathways...
