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Fluorescent Proteins & Reporters

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Fluorescent Timer

Study promoter activity using the Living Colors Fluorescent Timer, a fluorescent protein that shifts color from green to red over time—in a matter of hours, depending on the expression system (1). Shortly after its synthesis, the Fluorescent Timer begins emitting green fluorescence but as time passes, the fluorophore undergoes additional changes that shift its fluorescence to longer wavelengths.When fully matured, the protein is bright red. Detect the Fluorescent Timer with the DsRed Polyclonal Antibody.

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  • Use the DsRed1-C Sequencing Primer to sequence wild-type DsRed1 C-terminal gene fusions, including Timer fusions



  1. Terskikh, A. et al.(2000) Science 290(5496):1585–1588.

Additional Product Information

Please see the product's Certificate of Analysis for information about storage conditions, product components, and technical specifications. Please see the Kit Components List to determine kit components. Certificates of Analysis and Kit Components Lists are located under the Documents tab.

Cat. # Product Contents Size Price License Units Select
632402 pTimer Vector 20 ug $589.00 License Statements *
632403 pTimer-1 Vector 20 ug $589.00 License Statements *
* You must log in if you would like to purchase these products online, since the purchase of these products may be restricted depending on your account type. Researchers at not-for-profit accounts receive a limited use license with their purchase of the product. Researchers at for-profit accounts must obtain a license prior to purchase. For details please contact


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