Separation of variant methylated histone tails by differential ion mobility

Alexandre A. Shvartsburg*, Yupeng Zheng, Richard D. Smith, Neil L. Kelleher

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

45 Scopus citations


Differential ion mobility spectrometry (field asymmetric waveform ion mobility spectrometry (FAIMS)) is emerging as a broadly useful tool for separation of isomeric modified peptides with post-translational modifications (PTMs) attached to alternative residues. Such separations were anticipated to become more challenging for smaller PTMs and longer peptides. Here, we show that FAIMS can fully resolve localization variants involving a PTM as minuscule as methylation, even for larger peptides in the middle-down range.

Original languageEnglish (US)
Pages (from-to)6317-6320
Number of pages4
JournalAnalytical Chemistry
Issue number15
StatePublished - Aug 7 2012

ASJC Scopus subject areas

  • Analytical Chemistry


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