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Published September 4, 2009 | Accepted Version + Supplemental Material
Journal Article Open

Introduction of an Aliphatic Ketone into Recombinant Proteins in a Bacterial Strain that Overexpresses an Editing-Impaired Leucyl-tRNA Synthetase

Abstract

Like leucine? A leucine analogue containing a ketone has been incorporated into proteins in E. coli. Only E. coli strains overexpressing an editing-deficient leucyl-tRNA synthetase were capable of synthesizing proteins with the aliphatic ketone amino acid. Modification of ketone-containing proteins under mild conditions has been demonstrated.

Additional Information

Copyright © 2009 WILEY-VCH. Received: July 3, 2009. Published online on August 7, 2009. We thank Dr. Mona Shahgholi for assistance with MALDI-TOF mass spectrometry. This work was supported by NIH Grant R01-GM62523 and by the NSF Center for the Science and Engineering of Materials at Caltech. Y.T. was supported by a fellowship from the Whitaker Foundation, J.A.V. was supported by a National Defense Science and Engineering Graduate Fellowship, and A.J.L. was supported by a National Science Foundation Graduate Research Fellowship. Detailed experimental protocols can be found in the Supporting Information.

Attached Files

Accepted Version - nihms327143.pdf

Supplemental Material - sm001.pdf

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August 21, 2023
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