Our website does not fully support your browser.

We've detected that you are using an older version of Internet Explorer. Your commerce experience may be limited. Please update your browser to Internet Explorer 11 or above.

We believe this site might serve you best:

United States

United States

Language: English

Promega's Cookie Policy

Our website uses functional cookies that do not collect any personal information or track your browsing activity. When you select your country, you agree that we can place these functional cookies on your device.

Selenomethionine Protein Labeling Using the Escherichia coli Strain KRX

Kate Qin Zhao, Jim Hartnett and Michael R. Slater
Promega Corporation
Publication Date: 2007


With Monster Green® fluorescent protein as a model, we can achieve an average of 90% or greater selenomethionine (Se-Met) incorporation when the GFP is expressed in the E. coli strain KRX. Therefore, it is feasible to produce Se-Met-labeled protein samples for structural biology applications, such as X-ray crystallography, using the Single Step (KRX) Competent Cells.

Promega Notes 96, 24–26.

Related Resources