Advantages of Molecular Weight Identification during Native MS Screening

Ahad Khan, Anne R. Bresnick, Sean M. Cahill, Mark Girvin, Steven C. Almo, Ronald Quinn

Research output: Contribution to journalArticle

Abstract

Native mass spectrometry detection of ligand-protein complexes allowed rapid detection of natural product binders of apo and calcium-bound S100A4 (a member of the metal binding protein S100 family), T cell/transmembrane, immunoglobulin (Ig), and mucin protein 3, and T cell immunoreceptor with Ig and ITIM (immunoreceptor tyrosine-based inhibitory motif) domains precursor protein from extracts and fractions. Based on molecular weight common hits were detected binding to all four proteins. Seven common hits were identified as apigenin 6- C - β - D -glucoside 8- C - α - L -arabinoside, sweroside, 4′,5-dihydroxy-7-methoxyflavanone-6- C -rutinoside, loganin acid, 6- C -glucosylnaringenin, biochanin A 7- O -rutinoside and quercetin 3- O -rutinoside. Mass guided isolation and NMR identification of hits confirmed the mass accuracy of the ligand in the ligand-protein MS complexes. Thus, molecular weight ID from ligand-protein complexes by electrospray ionization Fourier transform mass spectrometry allowed rapid dereplication. Native mass spectrometry using electrospray ionization Fourier transform mass spectrometry is a tool for dereplication and metabolomics analysis.

Original languageEnglish (US)
JournalPlanta Medica
DOIs
StateAccepted/In press - May 9 2018

Fingerprint

Screening
Molecular Weight
Molecular weight
Mass spectrometry
Ligands
Electrospray ionization
Mass Spectrometry
T-cells
Fourier Analysis
Proteins
Immunoglobulins
Mucin-3
Fourier transforms
T-Lymphocytes
Apigenin
Metabolomics
Protein Precursors
Electrospray Ionization Mass Spectrometry
Glucosides
Mucins

Keywords

  • dereplication
  • ligand-protein complex
  • metabolomics
  • molecular weight
  • native mass spectrometry

ASJC Scopus subject areas

  • Analytical Chemistry
  • Molecular Medicine
  • Pharmacology
  • Pharmaceutical Science
  • Drug Discovery
  • Complementary and alternative medicine
  • Organic Chemistry

Cite this

Advantages of Molecular Weight Identification during Native MS Screening. / Khan, Ahad; Bresnick, Anne R.; Cahill, Sean M.; Girvin, Mark; Almo, Steven C.; Quinn, Ronald.

In: Planta Medica, 09.05.2018.

Research output: Contribution to journalArticle

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