Escherichia coli mutants

MIROUX, B., WALKER, J.E., Over-production of proteins in Escherichia coli Mutant hosts that allow synthesis of some membrane proteins and globular proteins at high levels, J. Mol. Biol. 1996, 260, 289-298. 

K18. Kurahashi, K., and Wahba, A. J., Interference with growth of certain Escherichia coli mutants by galactose. Biochim. et Biophys. Acta 30, 298-302 (1958). 

Inoue, H., Sakurai, T., Ujike, S., Tsuchiya, T., Murakami, H. and Kanazawa, H. (1999). Expression of functional Na+/H+ antiporters of Helicobacter pylori in antiporter-deficient Escherichia coli mutants, FEBS Lett., 443, 11-16. 

Yanofsky, C. (1971). Mutagenesis studies with Escherichia coli mutants with known amino acid and base-pair) changes. In Chemical Mutagens, Principles and Methods for Their Detection (Hollaender A., Ed.). Vol. 1, Plenum Press, New York, pp. 283-287. 

Wu, L. F. and Mandrand-Berthelot, M. A. (1986) Genetic and physiological characterization of new Escherichia coli mutants impaired in hydrogenase activity. Biochimie, 68, 167-79. 

The second stretch of lignification, the conversion of the first non-sugar substance into the aromatic monomers ready for polymerization, has been examined more thoroughly by hgnin biochemists. The pathways followed here by the plant are outline in Fig. 2. Excellent reviews of the enzymes known to be involved at each step here as well as in the polymerization at the third stretch have recently appeared 28 a, 82). The processes encountered in higher plants are in essence the same as those known to be in operation in the aromatization of aliphatic precursors in microorganisms following the work of Davis and Sprinson with Escherichia coli mutants 32, 101). 

The MetPAD test kit (Group 206 Technologies, Gainesville, Florida) has been developed for the detection of heavy metal toxicity. It has been used to determine the toxicity of sewage water and sludge, sediments, and soil [41]. The test is based on the inhibition of (3-galactosidase activity in an Escherichia coli mutant strain. Performance of the test does not require expensive equipment and it is therefore easily applied as a field test. 

Hara, K.Y., Shimodate, N., Hirokawa, Y., Ito, M., Baba, T., Mori, H., and Mori, H. (2009) Clutathione production by efficient ATP-regenerating Escherichia coli mutants. FEMS Microbiol Lett, (in press). 

Sapora O, Fielden EM, Loverock PS (1977) The application of rapid lysis techniques in radiobiology. II. The time course of the repair of DNA fixed damage and single-strand breaks in Escherichia coli mutants. Radiat Res 72 308-316... 

CG Sevastopoulos, CT Wehr, DA Glaser. Large-scale automated isolation of Escherichia coli mutants with thermosensitive DNA replication. Proc Natl Acad Sci (USA) 74 3485-3489, 1977. 

SA Denome, PK Elf, TA Henderson, DE Nelson, KD Young. Escherichia coli mutants lacking all possible combinations of eight penicillin binding proteins viability, characteristics, and implications for peptidoglycan synthesis. J Bacteriol 181 ... 

Leevy WM et al (2008) Quantun dot probes for bacteria distinguish Escherichia coli mutants and permit in vivo imaging. Chem Commun 2331-2333... 

Babinski, K.J., Kanjilal, S.J., Raetz, C.R.H. Accumulation of the lipid A precursor UDP-2,3-diacylglucosamine in an Escherichia coli mutant lacking the IpxH gene. J Biol Chem 277 (2002a) 25947-25956. 

Reynolds, C.M., Raetz, C.R. Replacement of lipopolysaccharide with free lipid A molecules in Escherichia coli mutants lacking all core sugars. Biochemistry 48 (2009) 9627-9640. 

Lee MH, Lee HW, Park JH et al (2006) Improved L-threonine production of Escherichia coli mutant by optimization of culture conditions. J Biosci Bioeng 101 127-130... 

Okamoto K, Kino K, Ikeda M (1997) Hyperproduction of L-threonine by an Escherichia coli mutant with impaired L-threonine uptake. Biosci Biotech Biochem 61 1877-1882... 

Diquat was negative in mutagenesis assays using Escherichia coli mutants but positive in the Ames assay. 

Sode, K., Watanabe, M., Makimoto, H. and Tomiyama, M. (1999). Construction and characterization of fermentative lactate dehydrogenase Escherichia coli mutant and its potential for bacterial hydrogen production. Appl. Biochem. Biotechnol. 77-79, 317-323. 

H. Yang, H. Inokuchi, J. Adler (1995). Phototaxis away from blue light by an Escherichia coli mutant accumulating protoporphyrin IX. Proc. Nat. Acad. Sci. U.S.A., 92, 7332-7336. 

Evidence has been presented for the presence of N -methylglutamine in ribo-somal protein L3 of Escherichia coli. Mutants of this organism,/irm-2, are defective in the methyltransferase activity that catalyzes this reaction. These mutants have impaired ribosomal assembly at low temperatures, suggesting a role for this modification in allowing bacteria to grow at suboptimal temperatures (Lhoest and Colson, 1981). 

Kandilogiannaki M, Koutsoudakis G, Zafiropoulos A et al. Expression of a recombinant human anti-MUCl scFv fragment in protease-deficient Escherichia coli mutants. Int J Mol Med 2001 ... 

J. (1969) Escherichia coli mutants defective in chemotaxis toward specific chemicals. Proc. Natl. Acad. Sci. USA 64, 1300-1307. 

Fischer, E. Sauer, U. Metabohc flux profihng of Escherichia coli mutants in central carbon metabolism using GC-MS. Eur. J. Biochem. 2003, 270, 880-891. 

Hedblom, M.L. and Adler, J. (1980). Genetic and biochemical properties of Escherichia coli mutants with defects in serine chemotaxis. J. Bacteriol. 144, 1048-1060. 

Suzuki, T. and Komeda, Y. (1981). Incomplete flagellar structure in Escherichia coli mutants./. Bacterial. 145, 1036-1041. 

Tisa, L.S. and Adler, J. (1995). Ghemotactic properties of Escherichia coli mutants having abnormal Ca content./. Bacterial. 177, 7112-7118. 

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