Molecule
Enzyme
A biological catalyst that speeds up a reaction without being used up. Most are proteins, but some RNAs are catalysts too, including the core of the ribosome.
Enzyme kinetics
How reaction speed depends on substrate concentration: it rises and then levels off, as the Michaelis-Menten equation describes.Source: Michaelis et al., 2011Source: Lineweaver & Burk, 1934
Also called Michaelis-Menten.
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How Enzyme kinetics connects
Enzyme kinetics describes
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Sources & further reading
The explanations on this page are our own summaries of these sources. Follow a link to read the original; if anything here disagrees with it, the original wins. How we choose and check sources.
The original Michaelis constant: translation of the 1913 Michaelis-Menten paper (opens the original in a new tab)
Michaelis L, Menten ML, Johnson KA, et al. (2011). Biochemistry 50:8264-8269.
Peer-reviewedTranslationThe determination of enzyme dissociation constants (opens the original in a new tab)
Lineweaver H, Burk D (1934). Journal of the American Chemical Society 56:658-666.
Historical paperPrimary research