Lanthanide-based peptide biosensor to monitor CDK4/cyclin D kinase activity

Author:

González-Vera Juan A.12345,Bouzada David6789,Bouclier Céline12345,Eugenio Vázquez M.6789ORCID,Morris May C.12345ORCID

Affiliation:

1. Institut des Biomolécules Max Mousseron

2. CNRS

3. IBMM-UMR 5247

4. Université de Montpellier

5. 15 Av. Charles Flahault

6. Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica

7. Universidade de Santiago de Compostela

8. 15782 Santiago de Compostela

9. Spain

Abstract

We describe a lanthanide biosensor that responds to CDK4 kinase activity in melanoma cell extracts through a significant and dose dependent increase in luminescence, thanks to sensitization of a DOTA[Tb3+] complex incorporated into a CDK4 substrate peptide by a unique tryptophan residue in an adjacent phosphoaminoacid binding moiety.

Publisher

Royal Society of Chemistry (RSC)

Subject

Materials Chemistry,Metals and Alloys,Surfaces, Coatings and Films,General Chemistry,Ceramics and Composites,Electronic, Optical and Magnetic Materials,Catalysis

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