Leuconostoc mesenteroid

Sucrose is subjected to the action of the bacterium Leuconostoc mesenteroides B 512 and the crude, high-molecular weight dextran thus formed is hydrolyzed and fractionated to an average molecular weight of about 40,000 as measured by light-scattering techniques. 

Homopolysaccharides are synthesised by relatively few spedfic enzymes and are not constructed from subunits. The commerdally important homo polymer dextran is synthesised extracellularly by the enzyme dextransucrase. In Leuconostoc mesenteroides the enzyme is induced by the substrate sucrose. This is deaved to release free fructose and link the glucose to the redudng end of the acceptor dextran chain, which is bound to the enzyme. The product from this bacterium is composed almost exdusively of... 

R9. Rowland, P., Basak, A. K., Gover, S., Levy, H. R., and Adams, M. J., The 3-dimensional structure of glucose-6-phosphate dehydrogenase from Leuconostoc mesenteroides refined at 2.0-angstrom resolution. Structure 2, 1073-1087 (1994). 

M. Dols, M. Remaud-Simeon, R. M. Willemot, M. Vignon, and P. Monsan, Structural characterization of the maltose acceptor products synthesized by Leuconostoc mesenteroides NRRL B-1299 dextransucrase, Carbohydr. Res., 305 (1998) 549-559. 

M. Remaud-Simeon, A. Lopez-Munguia, V. Pelenc, F. Paul, and P. Monsan, Production and use of glucosyltransferases from Leuconostoc mesenteroides NRRL B-1299 for the synthesis of oligosaccharides containing a-(l >2) linkages, Appl. Biochem. Biotechnol., 44 (1994) 101-117. 

J. F. Robyt and T. F. Walseth, Production, purification, and properties of dextransucrase from Leuconostoc mesenteroides NRRL B-512F, Carbohydr. Res., 68 (1979) 95-111. 

S. Morales-Arrieta, M. E. Rodriguez, L. Segovia, A. Lopez-Munguia, and C. Olvera-Carranza, Identification and functional characterization of levS, a gene encoding for a levansucrase from Leuconostoc mesenteroides NRRL B-512 F, Gene, 376 (2006) 59-67. 

Alizade, M. A., Simon, H. Studies on mechanism and compartmentation of the L- and D-lactate formation from L-malate and D-glucose by Leuconostoc mesenteroides. Hoppe-Seylers Z. Physiol. Chem. 354, 163—168 (1973). 

CASRN 115-90-2 molecular formula CnHi704PS2 FW 308.35 Soil. In soils, the bacterium Klebsiella pneumoniae degraded fensulfothion to fensulfothion sulfide (Timms and MacRae, 1982, 1983). The following microorganisms were also capable of degrading the parent compound to the corresponding sulfide Escherichia coli. Pseudomonas Huorescens, Nocardia opaca, Lactobacillus plantarum, and Leuconostoc mesenteroides (Timms and MacRae, 1983). 

A) dextran (95% a-1- 6 linkages and 5% a-1- 3 branch linkages) S3mthesized by Leuconostoc mesenteroides B-512F dextansucrase ... 

O Rorke, A. O Cuinn, G. Purification and some structural properties of adenylate kinase from Leuconostoc mesenteroides (Lactobacteriaceae). Int. 

This degradation has also been applied151 to the dextran produced by Leuconostoc mesenteroides NRRL B-512, which is composed of (1 — 6)-linked a-D-glycopyranose residues, about 5% of which carry a side chain linked to 0-3 (partial structure 87). Tritylation of... 

Leuconostoc mesenteroides Doctoral Thesis, Johannes Gutenberg-Universitat, Mainz, 1972. 

Smith, E. E. 1970. Biosynthetic relation between the soluble and insoluble dextrans produced by Leuconostoc mesenteroides NRRL B-1229. FEBS Lett. 12, 33-37. 

Some lactic acid bacteria of the genus Lactobacillus, as well as Leuconostoc mesenteroides and Zymomonas mobilis, carry out the heterolactic fermentation (Eq. 17-33) which is based on the reactions of the pentose phosphate pathway. These organisms lack aldolase, the key enzyme necessary for cleavage of fructose 1,6-bisphosphate to the triose phosphates. Glucose is converted to ribulose 5-P using the oxidative reactions of the pentose phosphate pathway. The ribulose-phosphate is cleaved by phosphoketolase (Eq. 14-23) to acetyl-phosphate and glyceraldehyde 3-phosphate, which are converted to ethanol and lactate, respectively. The overall yield is only one ATP per glucose fermented. 

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