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protein primary structure

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the full linear sequence of amino acids of a peptide or protein

Wikidata facts

Image
Protein structure (1)-en.svg
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different from
amino acid sequence
Commons category
Primary protein structure
characteristic of
peptide
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via Wikidata · CC0

~15 min read

Encyclopedic overview

The image above contains clickable links This diagram (which is interactive) of protein structure uses PCNA as an example. (PDB: 1AXC​)

Protein primary structure is the linear sequence of amino acids in a peptide or protein. By convention, the primary structure of a protein is reported starting from the amino-terminal (N) end to the carboxyl-terminal (C) end. Protein biosynthesis is most commonly performed by ribosomes in cells. Peptides can also be synthesized in the laboratory. Protein primary structures can be directly sequenced, or inferred from DNA sequences.

Excerpted from Wikipedia’s “protein primary structure” article, available under the CC BY-SA 4.0 licence.