| L-mandelate dehydrogenase | <enzyme> Forms benzoylformate from mandelate Registry number: EC 1.1.99.- Synonym: mandelate oxidase, dye-linked l-mandelate dehydrogenase, (s)-mandelate dehydrogenase (26 Jun 1999) |
|---|---|
| L-methionine gamma-lyase | <enzyme> Pharmacological action: antimetabolites, antineoplastic Registry number: EC 4.4.1.11 Synonym: l-methionine alpha-deamino gamma-mercaptomethane-lyase, methionine dethiomethylase, l-methioninase, methioninase (26 Jun 1999) |
| L-phase variants | Bacterial variant's which do not have rigid cell walls but which may contain varying amounts of cell wall material; they are spherical to coccobacillary in shape and vary in size from small bodies that pass through filters which retain bacteria to bodies that are larger than the bacterial form; they are Gram-negative and resistant to penicillin; some revert to the bacterial phase upon removal of the inducing substance, whereas others do not; the variant's differ greatly from the parent bacterial cells in mode of reproduction, physiology, growth requirements, and individual and colonial morphology; they are generally considered to be nonpathogenic, even if derived from a pathogenic bacterium. Origin: L. Fr. Lister Institute (05 Mar 2000) |
| L-phenylglycine-AMP ligase | <enzyme> Catalyses l-phenylglycine-dependent ATP-pyrophosphate exchange; partial amino acid sequence given in first source Registry number: EC 6.3.2.- Synonym: pristinamycin I synthetase 4, pi synthetase 4, snbe protein (26 Jun 1999) |
| L-radiation | An x-radiation of slight penetrating power excited by cathode rays (high speed electrons) impinging on a metal anode; the energy of the radiation is a function of the binding energy of the L-shell electrons of the metal anode. (05 Mar 2000) |
| l-rhamnose | A methylpentose present in a number of plant glycosides, free in poison sumac, in lipopolysaccharides of Enterobacteriaceae, and in rutinose (a disaccharide). Synonym: isodulcit. (05 Mar 2000) |
| L-rhamnose isomerase | <enzyme> Specified by structural gene rhaa from E coli; catalyses the conversion of l-rhamnose to l-rhamnulose Registry number: EC 5.3.1.14 Synonym: l-rhamnose ketol-isomerase (26 Jun 1999) |
| L-ribose reductase | <enzyme> Nadph-linked E coli enzyme converts l-ribose to ribitol Registry number: EC 1.1.1.- (26 Jun 1999) |
| L-ribulosephosphate 4-epimerase | <enzyme> Consider also EC 5.1.3.1,ribulosephosphate 3-epimerase Registry number: EC 5.1.3.4 Synonym: l-ribulose 5-phosphate 4-epimerase, rpe1 gene product (26 Jun 1999) |
| l-selectin | Cell adhesion molecule and CD antigen that serves as a homing receptor for lymphocytes to lymph node high endothelial venules. (12 Dec 1998) |
| l-serine dehydratase | <enzyme> An enzyme of the lyase class that catalyses the dehydration and deamination of l-serine to form pyruvate. Chemical name: L-Serine hydro-lyase (deaminating) Registry number: EC 4.2.1.13 (12 Dec 1998) |
| l-sorbose | A very sweet reducing, but not fermentable, 2-ketohexose obtained from the berries of the mountain ash, Sorbus aucuparia (family Rosaceae), and from sorbitol by fermentation with Acetobacter suboxydans; l-sorbose is epimeric with d-fructose and is used in the manufacture of vitamin C. Synonym: sorbin, sorbinose, sorbitose. (05 Mar 2000) |
| L-sorbose-(acceptor) 5-oxidoreductase | <enzyme> Fad-dependent enzyme that catalyses conversion of l-sorbose to l-sorbosone; 58-kD membrane protein in gluconobacter oxydans Registry number: EC 1.1.99.12 Synonym: l-sorbose dehydrogenase, sdh enzyme (26 Jun 1999) |
| L-sorbose-1-phosphate reductase | <enzyme> Converts l-sorbose 1-phosphate to d-glucitol 6-phosphate in the presence of NADPH; also converts d-fructose 1-phosphate to d-mannitol 6-phosphate Registry number: EC 1.1.1.- Synonym: sor e gene product, sor 1-p reductase, sorbose-1-p reductase (26 Jun 1999) |
| L-sorbosone dehydrogenase | <enzyme> Converts l-sorbosone to 2-keto-l-gulonic acid. Registry number: EC 1.2.99.- (26 Jun 1999) |