Volume 123, Issue 37 pp. 8851-8855
Zuschrift

A Fluorescent Reporter of the Phosphorylation Status of the Substrate Protein STAT3

Vanessa K. Lacey

Vanessa K. Lacey

Jack H. Skirball Center for Chemical Biology & Proteomics, The Salk Institute for Biological Studies, 10010 N. Torrey Pines Road, La Jolla, CA 92037 (USA) http://wang.salk.edu/

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Angela R. Parrish

Angela R. Parrish

Jack H. Skirball Center for Chemical Biology & Proteomics, The Salk Institute for Biological Studies, 10010 N. Torrey Pines Road, La Jolla, CA 92037 (USA) http://wang.salk.edu/

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Shuliang Han

Shuliang Han

College of Chemistry, Peking University, Beijing 100871 (China)

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Dr. Zhouxin Shen

Dr. Zhouxin Shen

Section of Cell and Development Biology, University of California at San Diego, La Jolla, CA 92037 (USA)

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Prof. Steven P. Briggs

Prof. Steven P. Briggs

Section of Cell and Development Biology, University of California at San Diego, La Jolla, CA 92037 (USA)

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Prof. Yuguo Ma

Prof. Yuguo Ma

College of Chemistry, Peking University, Beijing 100871 (China)

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Prof. Lei Wang

Corresponding Author

Prof. Lei Wang

Jack H. Skirball Center for Chemical Biology & Proteomics, The Salk Institute for Biological Studies, 10010 N. Torrey Pines Road, La Jolla, CA 92037 (USA) http://wang.salk.edu/

Jack H. Skirball Center for Chemical Biology & Proteomics, The Salk Institute for Biological Studies, 10010 N. Torrey Pines Road, La Jolla, CA 92037 (USA) http://wang.salk.edu/Search for more papers by this author
First published: 29 July 2011
Citations: 8

We thank Dr. Tony Hunter for helpful discussions. L.W. thanks the support from the Salk Innovation grant, March of Dimes Foundation (5-FY08-110), CIRM (RN1-00577-1), NCI (P30CA014195) and NIH (1DP2OD004744).

Graphical Abstract

Ein reversibler Biosensor gibt Auskunft über den Phosphorylierungszustand des Volllängen-Substratproteins STAT3, indem er genetisch 7-Hydroxycumarin in dessen Phosphotyrosin-Bindetasche einbaut (siehe Bild). Eine starke Zunahme der Fluoreszenz mit charakteristischen Emissions- und Anregungseigenschaften tritt bei Phosphorylierung von STAT3 in vitro und endogen in Zellkernextrakten auf.

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