phosphoprotein
Sign in to savethumb|Serine in an amino acid chain, before and after phosphorylation.
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4 sectionsContents
- Biological function
- Clinical significance
- See also
- References
thumb|Serine in an amino acid chain, before and after phosphorylation.
A phosphoprotein is a protein that is posttranslationally modified by the attachment of either a single phosphate group, or a complex molecule such as 5'-phospho-DNA, through a phosphate group. The target amino acid is most often serine, threonine, or tyrosine residues (mostly in eukaryotes), or aspartic acid or histidine residues (mostly in prokaryotes).