| Maternal embryonic leucine zipper kinase | Humans | Serine/threonine-protein kinase involved in various processes such as cell cycle regulation, self-renewal of stem cel... more | 1 | Details |
| Matrilysin | Humans | Degrades casein, gelatins of types I, III, IV, and V, and fibronectin. Activates procollagenase | 12 | Details |
| Matrix Gla protein | Humans | Associates with the organic matrix of bone and cartilage. Thought to act as an inhibitor of bone formation | 1 | Details |
| Matrix metalloproteinase-14 | Humans | Endopeptidase that degrades various components of the extracellular matrix such as collagen. Essential for pericellul... more | 7 | Details |
| Matrix metalloproteinase-15 | Humans | Endopeptidase that degrades various components of the extracellular matrix. May activate progelatinase A | 1 | Details |
| Matrix metalloproteinase-16 | Humans | Endopeptidase that degrades various components of the extracellular matrix, such as collagen type III and fibronectin... more | 2 | Details |
| Matrix metalloproteinase-17 | Humans | Endopeptidase that degrades various components of the extracellular matrix, such as fibrin. May be involved in the ac... more | 1 | Details |
| Matrix metalloproteinase-19 | Humans | Endopeptidase that degrades various components of the extracellular matrix, such as aggrecan and cartilage oligomeric... more | 1 | Details |
| Matrix metalloproteinase-20 | Humans | Degrades amelogenin, the major protein component of the enamel matrix and two of the macromolecules characterizing th... more | 2 | Details |
| Matrix metalloproteinase-21 | Humans | Plays a specialized role in the generation of left-right asymmetry during embryogenesis. May act as a negative regula... more | 1 | Details |
| Matrix metalloproteinase-23 | Humans | Protease. May regulate the surface expression of some potassium channels by retaining them in the endoplasmic reticulum | 1 | Details |
| Matrix metalloproteinase-24 | Humans | Metalloprotease that mediates cleavage of N-cadherin (CDH2) and acts as a regulator of neuro-immune interactions and ... more | 1 | Details |
| Matrix metalloproteinase-25 | Humans | May activate progelatinase A | 3 | Details |
| Matrix metalloproteinase-26 | Humans | May hydrolyze collagen type IV, fibronectin, fibrinogen, beta-casein, type I gelatin and alpha-1 proteinase inhibitor... more | 1 | Details |
| Matrix metalloproteinase-27 | Humans | Matrix metalloproteinases degrade protein components of the extracellular matrix such as fibronectin, laminin, gelati... more | 1 | Details |
| Matrix metalloproteinase-28 | Humans | Can degrade casein. Could play a role in tissues homeostasis and repair | 1 | Details |
| Matrix metalloproteinase-9 | Humans | Matrix metalloproteinase that plays an essential role in local proteolysis of the extracellular matrix and in leukocy... more | 42 | Details |
| Matrix protein 2 | Influenza A virus (strain A/Ann Arbor/6/1960 H2N2) | Forms a proton-selective ion channel that is necessary for the efficient release of the viral genome during virus ent... more | 3 | Details |
| Mature parasite-infected erythrocyte surface antigen | Plasmodium falciparum (isolate 3D7) | Not Available | 1 | Details |
| MecA | Staphylococcus aureus | Not Available | 2 | Details |
| MecA PBP2' (penicillin binding protein 2') | Staphylococcus aureus | Not Available | 3 | Details |
| Mediator of RNA polymerase II transcription subunit 1 | Humans | Component of the Mediator complex, a coactivator involved in the regulated transcription of nearly all RNA polymerase... more | 1 | Details |
| Medium-chain specific acyl-CoA dehydrogenase, mitochondrial | Humans | Medium-chain specific acyl-CoA dehydrogenase is one of the acyl-CoA dehydrogenases that catalyze the first step of mi... more | 6 | Details |
| Megakaryocyte-associated tyrosine-protein kinase | Humans | Could play a significant role in the signal transduction of hematopoietic cells. May regulate tyrosine kinase activit... more | 1 | Details |
| Meiotic recombination protein DMC1 homolog | Humans | Homologous DNA recombinase that catalyzes strand exchange during meiotic recombination. Specifically required for mei... more | 1 | Details |