Reference: Kim D, et al. (2023) Detection of Nα-terminally formylated native proteins by a pan-N-formyl methionine-specific antibody. J Biol Chem 299(5):104652

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Abstract


N-formyl methionine (fMet)-containing proteins are produced in bacteria, eukaryotic organelles mitochondria and plastids, and even in cytosol. However, Nα-terminally formylated proteins have been poorly characterized because of the lack of appropriate tools to detect fMet independently of downstream proximal sequences. Using a fMet-Gly-Ser-Gly-Cys peptide as an antigen, we generated a pan-fMet-specific rabbit polyclonal antibody called anti-fMet. The raised anti-fMet recognized universally and sequence context-independently Nt-formylated proteins in bacterial, yeast, and human cells as determined by a peptide spot array, dot blotting, and immunoblotting. We anticipate that the anti-fMet antibody will be broadly used to enable an understanding of the poorly explored functions and mechanisms of Nt-formylated proteins in various organisms.

Reference Type
Journal Article | Research Support, Non-U.S. Gov't
Authors
Kim D, Seok OH, Ju S, Kim SY, Kim JM, Lee C, Hwang CS
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