| Macrophage migration inhibitory factor | Humans | Pro-inflammatory cytokine involved in the innate immune response to bacterial pathogens. The expression of MIF at sit... more | 11 | Details |
| Macrophage receptor MARCO | Humans | Pattern recognition receptor (PRR) which binds Gram-positive and Gram-negative bacteria. Also plays a role in binding... more | 2 | Details |
| Macrophage scavenger receptor types I and II | Humans | Membrane receptor that mediates the binding, endocytosis and phagocytosis of a broad range of ligands. Recognizes and... more | 2 | Details |
| Macrophage-stimulating protein receptor | Humans | Receptor tyrosine kinase that transduces signals from the extracellular matrix into the cytoplasm by binding to MST1 ... more | 5 | Details |
| Magnesium cation | Humans | Not Available | 1 | Details |
| Magnesium transporter MRS2 homolog, mitochondrial | Humans | Magnesium transporter that mediates the influx of magnesium into the mitochondrial matrix and regulates magnesium met... more | 1 | Details |
| Major histocompatibility complex class I-related protein 1 | Humans | Antigen-presenting molecule specialized in displaying microbial pyrimidine-based metabolites to alpha-beta T cell rec... more | 3 | Details |
| Major NAD(P)H-flavin oxidoreductase | Vibrio fischeri | Involved in bioluminescence. It is a good supplier of reduced flavin mononucleotide (FMNH2) to the bioluminescence re... more | 3 | Details |
| Major outer membrane protein P.IB | Neisseria meningitidis | Not Available | 1 | Details |
| Major prion protein | Humans | Its primary physiological function is unclear. May play a role in neuronal development and synaptic plasticity. May b... more | 4 | Details |
| Malaria protein EXP-1 | Plasmodium falciparum | Not Available | 1 | Details |
| Malate dehydrogenase | Chloroflexus aurantiacus (strain ATCC 29366 / DSM 635 / J-10-fl) | Catalyzes the reversible oxidation of malate to oxaloacetate. | 1 | Details |
| Malate dehydrogenase | Escherichia coli (strain K12) | Catalyzes the reversible oxidation of malate to oxaloacetate. | 1 | Details |
| Malate dehydrogenase | Aquaspirillum arcticum | Catalyzes the reversible oxidation of malate to oxaloacetate. | 1 | Details |
| Malate dehydrogenase, cytoplasmic | Humans | Catalyzes the reduction of aromatic alpha-keto acids in the presence of NADH. Plays essential roles in the malate-asp... more | 3 | Details |
| Malate dehydrogenase, mitochondrial | Humans | Mitochondrial malate dehydrogenase that catalyzes the reversible conversion of malate to oxaloacetate using NAD(+) as... more | 4 | Details |
| Malate synthase G | Escherichia coli (strain K12) | Involved in the glycolate utilization. Catalyzes the condensation and subsequent hydrolysis of acetyl-coenzyme A (ace... more | 1 | Details |
| Malate synthase G | Mycobacterium tuberculosis | Involved in the glycolate utilization. Catalyzes the condensation and subsequent hydrolysis of acetyl-coenzyme A (ace... more | 3 | Details |
| Maleylacetoacetate isomerase | Humans | Bifunctional enzyme showing minimal glutathione-conjugating activity with ethacrynic acid and 7-chloro-4-nitrobenz-2-... more | 5 | Details |
| Malonamidase E2 | Bradyrhizobium japonicum | Not Available | 3 | Details |
| Malonyl-CoA-acyl carrier protein transacylase, mitochondrial | Humans | Catalyzes the transfer of a malonyl moiety from malonyl-CoA to the free thiol group of the phosphopantetheine arm of ... more | 1 | Details |
| Maltase-glucoamylase | Humans | Alpha-(1,4) exo-glucosidase involved in breakdown of dietary starch oligosaccharides in small intestine. Cleaves the ... more | 21 | Details |
| Malto-oligosyltrehalose trehalohydrolase | Deinococcus radiodurans (strain ATCC 13939 / DSM 20539 / JCM 16871 / LMG 4051 / NBRC 15346 / NCIMB 9279 / R1 / VKM B-1422) | Not Available | 2 | Details |
| Maltodextrin phosphorylase | Escherichia coli (strain K12) | Phosphorylase is an important allosteric enzyme in carbohydrate metabolism. Enzymes from different sources differ in ... more | 4 | Details |
| Maltodextrin-binding protein | Alicyclobacillus acidocaldarius | Not Available | 2 | Details |