Related Experiment Video
Updated: Jul 7, 2026

Experimental Approaches to Study Mitochondrial Localization and Function of a Nuclear Cell Cycle Kinase, Cdk1
Published on: February 25, 2016
Assays for CDK activity and DNA replication in the cell cycle
J Pines1, M Jackman, K Simpson
1Wellcome/CRC Institute, and Cambridge University, Cambridge, United Kingdom.
Abstract:
This unit describes two assays for different stages of the cell cycle in tissue culture cells. One is a biochemical measurement that assays the protein kinase activity of different cyclin-dependent kinase complexes that are present in late G1 phase, S phase, G2 phase, or mitosis. The other assay uses immunofluorescence to detect DNA replication by the incorporation of nucleotide analogs into DNA. These assays are useful in analyzing the stage and degree of synchrony of the cell cycle and changes in the basic cell cycle machinery.
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