| L-allo-threonine aldolase | Thermotoga maritima (strain ATCC 43589 / MSB8 / DSM 3109 / JCM 10099) | Not Available | 3 | Details |
| L-amino-acid oxidase | Humans | Secreted L-amino-acid oxidase that acts as a key immunoregulator. Has preference for L-aromatic amino acids: converts... more | 4 | Details |
| L-arabinose-binding periplasmic protein | Escherichia coli (strain K12) | Involved in the high-affinity L-arabinose membrane transport system. Binds with high affinity to arabinose, but can a... more | 4 | Details |
| L-asparaginase | Erwinia chrysanthemi | Not Available | 3 | Details |
| L-asparaginase 2 | Escherichia coli (strain K12) | Not Available | 2 | Details |
| L-asparagine | Humans | Not Available | 6 | Details |
| L-aspartate oxidase | Escherichia coli (strain K12) | Catalyzes the oxidation of L-aspartate to iminoaspartate, the first step in the de novo biosynthesis of NAD(+). Can u... more | 1 | Details |
| L-carnitine CoA-transferase | Escherichia coli (strain K12) | Catalyzes the reversible transfer of the CoA moiety from gamma-butyrobetainyl-CoA to L-carnitine to generate L-carnit... more | 2 | Details |
| L-cysteine:1D-myo-inositol 2-amino-2-deoxy-alpha-D-glucopyranoside ligase | Mycobacterium tuberculosis (strain ATCC 25177 / H37Ra) | Catalyzes the ATP-dependent condensation of GlcN-Ins and L-cysteine to form L-Cys-GlcN-Ins. | 1 | Details |
| L-fucose isomerase | Shigella flexneri | Converts the aldose L-fucose into the corresponding ketose L-fuculose. | 1 | Details |
| L-fuculose phosphate aldolase | Escherichia coli (strain K12) | Involved in the degradation of L-fucose and D-arabinose. Catalyzes the reversible cleavage of L-fuculose 1-phosphate ... more | 3 | Details |
| L-glutamate gamma-semialdehyde dehydrogenase | Thermus thermophilus | Not Available | 1 | Details |
| L-hydantoinase | Arthrobacter aurescens | Rather more predominant for the cleavage of aryl- than for alkyl-hydantoin derivatives. The stereoselectivity of this... more | 1 | Details |
| L-lactate dehydrogenase | Plasmodium falciparum (isolate CDC / Honduras) | Not Available | 7 | Details |
| L-lactate dehydrogenase | Thermotoga maritima (strain ATCC 43589 / MSB8 / DSM 3109 / JCM 10099) | Catalyzes the conversion of lactate to pyruvate. It is stereospecific for L(+)-lactate. | 2 | Details |
| L-lactate dehydrogenase A chain | Humans | Interconverts simultaneously and stereospecifically pyruvate and lactate with concomitant interconversion of NADH and... more | 9 | Details |
| L-lactate dehydrogenase A-like 6A | Humans | Catalyzes the interconversion of L-lactate and pyruvate with nicotinamide adenine dinucleotide NAD(+) as a coenzyme. ... more | 1 | Details |
| L-lactate dehydrogenase A-like 6B | Humans | Catalyzes the interconversion of L-lactate and pyruvate with nicotinamide adenine dinucleotide NAD(+) as a coenzyme | 1 | Details |
| L-lactate dehydrogenase B chain | Humans | Interconverts simultaneously and stereospecifically pyruvate and lactate with concomitant interconversion of NADH and... more | 5 | Details |
| L-lactate dehydrogenase C chain | Humans | Possible role in sperm motility | 2 | Details |
| L-lysine-epsilon aminotransferase | Mycobacterium tuberculosis | Not Available | 1 | Details |
| L-methionine gamma-lyase | Pseudomonas putida | Catalyzes the alpha,gamma-elimination of L-methionine to produce methanethiol, 2-oxobutanoate and ammonia. Is involve... more | 4 | Details |
| L-rhamnose isomerase | Escherichia coli (strain K12) | Catalyzes the interconversion of L-rhamnose and L-rhamnulose. Can also catalyze the isomerization of L-lyxose to L-xy... more | 2 | Details |
| L-selectin | Humans | Calcium-dependent lectin that mediates cell adhesion by binding to glycoproteins on neighboring cells. Mediates the a... more | 4 | Details |
| L-serine dehydratase/L-threonine deaminase | Humans | Catalyzes the pyridoxal-phosphate-dependent dehydrative deamination of L-threonine and L-serine to ammonia and alpha-... more | 2 | Details |