---
title: "Fluorescent labelling: research glossary | Sable Peptides"
description: "Fluorescent labelling is the attachment of a fluorophore, such as FITC, carboxyfluorescein or a cyanine dye, to a peptide to enable detection by fluorescen"
canonical: https://www.sablepeptides.co.uk/glossary/fluorescent-labelling
publisher: Sable Peptides Limited (UK company 17488610)
note: Research use only. Not for human or veterinary use.
---

Glossary

# Fluorescent labelling

Fluorescent labelling is the attachment of a fluorophore, such as FITC, carboxyfluorescein or a cyanine dye, to a peptide to enable detection by fluorescence. Labelled peptides are used in microscopy, flow cytometry, binding assays and uptake studies. The label changes the peptide's mass and may alter its properties.

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

## Related terms

-   [Peptide](/glossary/peptide)

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