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Molecule

Methionine

L-methionine

Methionine is a sulfur-containing amino acid and is often the first amino acid inserted when a protein is translated.

Overview

EXPLORE BY LEVEL

Methionine is a sulfur-containing and is often the first inserted when a protein is translated.

Quick Facts

AT A GLANCE
One-letter codeM
Three-letter codeMet
Chemical formulaC₅H₁₁NO₂S
Side chainThioether group
Show 3 more facts
Side-chain chemistryNonpolar; sulfur-containing
Human dietary contextEssential in the human diet
Protein-building setOne of the 20 standard protein-building amino acids

Follow the Connections

See how Methionine links to other biological records.

Open network
ConceptAmino AcidsincludesProcessTranslationincorporated during
All 2 Structured Connections
Amino Acids · ConceptINCLUDES →Methionine · Molecule
Methionine · MoleculeINCORPORATED DURING →Translation · Process

Recommended Reading

Trusted references for learning more about Methionine.

textbookChemical Components of a CellMolecular Biology of the Cell · NCBI Bookshelf textbookFrom RNA to proteinMolecular Biology of the Cell · NCBI Bookshelf textbookBiochemistry · Essential Amino AcidsNCBI Bookshelf · StatPearls
Research Claims

Methionine is a standard amino acid commonly used to build proteins.

Methionine uses the residue codes Met and M.

Methionine is classified as essential in the usual human diet.