Boron nitride as desalting material in combination with phosphopeptide enrichment in shotgun proteomics

Author(s)
Takeshi Furuhashi, Ella Nukarinen, Shigenori Ota, Wolfram Weckwerth
Abstract

Hydrophilic peptides in shotgun proteomics have been shown to be problematic in conventional chromatography. Typically, C18 solid phase extraction or peptide traps are used for desalting the sample prior to mass spectrometry analysis, but the capacity to retain hydrophilic peptides is not very high, causing a bias toward more hydrophobic peptides. This is particularly problematic in phosphoproteomic studies. We tested the compatibility of commercially available boron nitride as a novel material for peptide desalting. Boron nitride can be used to recover a wide range of peptides with different physicochemical properties comparable to combined C18 and graphite carbon material.

Organisation(s)
External organisation(s)
GL Sciences Inc.
Journal
Analytical Biochemistry
Volume
452
Pages
16-18
No. of pages
3
ISSN
0003-2697
DOI
https://doi.org/10.1016/j.ab.2014.01.005
Publication date
05-2014
Peer reviewed
Yes
Austrian Fields of Science 2012
106002 Biochemistry, 106037 Proteomics, 104002 Analytical chemistry
Keywords
ASJC Scopus subject areas
Molecular Biology, Biophysics, Biochemistry, Cell Biology
Portal url
https://ucris.univie.ac.at/portal/en/publications/boron-nitride-as-desalting-material-in-combination-with-phosphopeptide-enrichment-in-shotgun-proteomics(856eca1e-29e4-474b-9a6b-ac2bcfcf04a1).html