methylguanidinase
A hydrolase enzyme that catalyzes the reaction of methylguanidine and water into methylamine and urea.

methylisopropylthiambutene
An opioid analgesic drug from the thiambutene family.

methyllanthionine
A particular thioether amino acid.

methyllanthionines
plural of methyllanthionine

methyloxidase
Any enzyme that catalyses the oxidation of a methyl group (typically -CH₃ => -CH₂OH)

methyloxidases
plural of methyloxidase

methylpropylthiambutene
An opioid analgesic drug from the thiambutene family.

methylthiotransferase
Any enzyme that catalyses the transfer of a methylthio group

methylthiotransferases
plural of methylthiotransferase

methyltransferase
Any enzyme that catalyzes transmethylation

methyltransferases
plural of methyltransferase

methyltyramine
A metabolite of amphetamines that has some sympathomimetic effect.

methyltyrosine
Any of several isomeric methyl derivatives of tyrosine, but especially α-methyltyrosine which is the antihypertensive drug metirosine

methyltyrosines
plural of methyltyrosine

metrazol
Synonym of pentylenetetrazol.

mexxy
The recreational drug methoxetamine.

microalbumin
A test for microalbuminuria

microalbumins
plural of microalbumin

microantibodies
plural of microantibody

microantibody
A peptide, copied from an antibody, that can protect against viral attacks

microbiomarker
A microbial biomarker

microbiomarkers
plural of microbiomarker

microdystrophin
A truncated form of dystrophin missing most of the internal exons

microdystrophins
plural of microdystrophin

microglobin
Any microprotein that is a globin

microglobins
plural of microglobin

micropeptide
A very small peptide that has some biological activity and can thus be considered to be a protein

micropeptides
plural of micropeptide

microplasmin
A recombinant truncated form of human plasmin, obtained from miroplasminogen, used in the treatment of vitreomacular adhesion

microplasmins
plural of microplasmin

microplusin
An antimicrobial peptide present in the tick Rhipicephalus microplus.

microplusins
plural of microplusin

microprotein
A small protein.
A peptide fragment of a protein.

microproteins
plural of microprotein

microutrophin
A truncated form of utrophin missing most of the internal exons

microutrophins
plural of microutrophin

midaglizole
An antidiabetic drug.

midostaurin
A drug being investigated for the treatment of acute myeloid leukemia and myelodysplastic syndrome.

mieloperoxidase
Misspelling of myeloperoxidase.

migrastatic
Any drug that interferes with metastasis (of a cancer)

migrastatics
plural of migrastatic

milacainide
An anesthetic drug.

milameline
A drug that acts as a non-selective muscarinic acetylcholine receptor partial agonist.

mimosine
A toxic alkaloid, β-3-hydroxy-4 pyridone amino acid, found in Mimosa and related plants.

minepentate
An antispasmodic drug.

miniantibodies
plural of miniantibody

miniantibody
A relatively small antibody

minibodies
plural of minibody

minibody
An antibody fragment that has biological activity

minimotif
A short contiguous peptide motif

minimotifs
plural of minimotif

miniprotein
A small protein (or a large polypeptide), especially one that folds into a structure similar to that of a normal protein

miniproteins
plural of miniprotein

mirabegron
A drug for the treatment of overactive bladder.

mirabilysin
A Proteus mirabilis metalloprotease virulence factor

mitocalcin
A mitochondrial calcium-binding protein

mitofilin
A transmembrane protein of the inner mitochondrial membrane.

mitogen
Any substance that stimulates mitosis

mitogens
plural of mitogen

mitratapide
A veterinary drug for the treatment of obese dogs.

mocetinostat
An experimental anticancer drug.

moctamide
An antilipidemic drug.

moggie
Alternative spelling of moggy (“a cat”).

moggies
plural of moggy
plural of moggie

molracetam
A racetam drug.

molsidomine
An oral vasodilating drug.

monellin
A sweet protein found in Dioscoreophyllum cumminsii.

monellins
plural of monellin

monepantel
A particular anthelminthic drug.

monoacylglyceride
Synonym of monoglyceride (of a typical fatty acid)

monoacylglycerides
plural of monoacylglyceride

monoaminooxidase
Alternative form of monoaminoxidase.

monoaminooxidases
plural of monoaminooxidase

monoaminoxidase
monoamine oxidase

monoaminoxidases
plural of monoaminoxidase

monoantibodies
plural of monoantibody

monoantibody
monoclonal antibody

monoavidin
A monomeric form of avidin

monobodies
plural of monobody

monobody
A synthetic binding protein constructed using a fibronectin type III domain as a molecular scaffold.

monocarboxypeptidase
Synonym of carboxypeptidase.

monocarboxypeptidases
plural of monocarboxypeptidase

monocupin
Any protein that has a single copy of the cupin domain

monocupins
plural of monocupin

monodeiodinase
Any enzyme that removes a single iodine atom from thyroxine

monodeiodinases
plural of monodeiodinase

monodeoxynucleosides
plural of monodeoxynucleoside

monodeoxynucleotides
plural of monodeoxynucleotide

monoesterase
Any enzyme that catalyses the hydrolysis of a phosphate monoester

monoesterases
plural of monoesterase

monoethylglycinexylidide
A pharmacologically active metabolite of lidocaine.

monoglycerid
Archaic form of monoglyceride.

monoglyceride
a lipid, an ester of glycerol and one fatty acid (in the 1- or 2- positions)

monoglycerides
plural of monoglyceride

monoglycerids
plural of monoglycerid

monohexose
A monosaccharide hexose

monohexoses
plural of monohexose

monoiodotyrosine
A precursor of thyroid hormone that results from iodization of tyrosine at the metaposition of the phenol ring.

monoiodotyrosines
plural of monoiodotyrosine

monomannose
The monosaccharide form of mannose

monomethylase
Any enzyme that catalyzes monomethylation

monomethylases
plural of monomethylase

mononucleoside
An individual nucleoside

mononucleosides
plural of mononucleoside

mononucleotide
A single nucleotide.

mononucleotides
plural of mononucleotide

monooxidase
Alternative form of monoxidase.

monooxidases
plural of monooxidase

monooxygenase
Any oxygenase enzyme that catalyzes the incorporation of a single atom of molecular oxygen into a substrate, the other atom being reduced to water; active in the metabolism of many foreign compounds

monooxygenases
plural of monooxygenase

monopentose
A monosaccharide pentose

monopentoses
plural of monopentose

monopeptide
Any peptide containing a single amino acid (combined with some other entity)

monopeptides
plural of monopeptide

monophenolase
Any enzyme that catalyzes the oxidation of simple phenols

monophenolases
plural of monophenolase

monophosphokinase
Any kinase that transfers a single phosphate group

monophosphokinases
plural of monophosphokinase

monophosphonucleoside
A nucleoside monophosphate

monophosphonucleosides
plural of monophosphonucleoside

monoubiquitinase
Any enzyme that catalyses monoubiquitination

monoubiquitinases
plural of monoubiquitinase

monoxidase
monoamine oxidase

monoxidases
plural of monoxidase

monoxygenase
Alternative form of monooxygenase.

monoxygenases
plural of monoxygenase

morantel
An anthelminthic drug.

moronecidin
An antimicrobial peptide present in the striped bass (of genus Morone)

moronecidins
plural of moronecidin

morphogen
Any substance that governs the movement and development of cells during morphogenesis by forming a concentration gradient in the developing tissue.

morphogens
plural of morphogen

morpholinylthiambutene
An opioid analgesic drug from the thiambutene family.

morphotrap
A synthetic transmembrane protein used in biochemical research

mortalin
A mitochondrial-resident protein that exhibits different staining patterns in normal and immortal cells.

mosquiticide
Alternative form of mosquitocide.

mosquitocide
Any substance that kills mosquitos.

mosquitocides
plural of mosquitocide

motilins
plural of motilin

motogen
Any substance that stimulates cell motility.

motogens
plural of motogen