Rhodamine
Rhodamine — A family of fluorescent dyes used for labeling peptides in imaging, flow cytometry, and fluorescence-based binding assays.
What Is Rhodamine?
Rhodamine is a family of red-fluorescent dyes (fluorophores) widely used for peptide labeling. TAMRA (carboxytetramethylrhodamine, ex 555/em 580 nm) is the most common rhodamine label for peptides, used in FRET pairs, cell imaging, and flow cytometry.
Rhodamine Variants
- TAMRA: Ex 555/Em 580. FRET acceptor for FAM/FITC
- Rhodamine B: Cell-permeable. Used for tracking CPP uptake
- Sulforhodamine B (SRB): Protein stain for cytotoxicity assay (alternative to MTT)
Frequently Asked Questions
What is Rhodamine?
A family of fluorescent dyes used for labeling peptides in imaging, flow cytometry, and fluorescence-based binding assays.
Why is Rhodamine important in peptide research?
Rhodamine is a fundamental concept in analytical as it relates to peptide science. It directly influences experimental design, compound characterization, and the reliability of research outcomes across biochemistry and molecular biology disciplines.