---
title: "Serine: research glossary | Sable Peptides"
description: "Serine (three-letter code Ser, one-letter code S) is a small polar amino acid with a hydroxymethyl side chain. Its hydroxyl group can form hydrogen bonds a"
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publisher: Sable Peptides Limited (UK company 17488610)
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---

Glossary

# Serine

Serine (three-letter code Ser, one-letter code S) is a small polar amino acid with a hydroxymethyl side chain. Its hydroxyl group can form hydrogen bonds and is a common site of phosphorylation and glycosylation. In Fmoc synthesis, the serine side chain is normally protected as a tert-butyl ether.

Source: [en.wikipedia.org](https://en.wikipedia.org/wiki/Serine)

## Related terms

-   [Amino acid](/glossary/amino-acid)
-   [One-letter code](/glossary/one-letter-code)

[Back to glossary A–Z](/glossary/terms)

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