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High-resolution ultrahigh-pressure long column reversed-phase liquid chromatography for top-down proteomics

Journal Article · · Journal of Chromatography

We report development of an approach providing high-resolution RPLC of proteins and its utility for mass spectrometry-based top-down proteomics. A chromatographic peak capacity of ~450 was achieved for proteins and large polypeptides having MWs up to 43 kDa in the context of proteomics applications. RPLC column lengths from 20 to 200 cm, particle sizes from 1.5 to 5 m, bonding alkyl chains from C1 to C2, C4, C8, and C18, and particle surface structures that spanned porous, superficially porous (porous shell, core-shell), and nonporous were investigated at pressures up to14K psi. Column length was found as the most important factor for >20 kDa proteins in gradient RPLC, and shortening column length degraded RPLC resolution and sensitivity regardless of the size and surface structure of the packing particles used. The alkyl chains bonded to the silica particle surface significantly affected the RPLC recovery and efficiency, and short alkyl C1-C4 phases provided higher sensitivity and resolution than C8 and C18 phases. Long gradient separations (e.g., >10 hours) with long columns (e.g., 100 cm) were particularly effective in conjunction with use of high accuracy mass spectrometers (e.g., the Orbitrap Elite) for top-down proteomics with improved proteoform coverage by allowing multiple HCD, CID, and ETD dissociation modes. It was also found that HCD produced small fragments useful for proteoform identification, while low energy CID and ETD often complemented HCD by providing large fragments.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-76RL01830
OSTI ID:
1364003
Report Number(s):
PNNL-SA-104738; 47418; KP1601010
Journal Information:
Journal of Chromatography, Journal Name: Journal of Chromatography Journal Issue: C Vol. 1498; ISSN 0021-9673
Publisher:
Elsevier
Country of Publication:
United States
Language:
English

References (27)

Complete Protein Characterization Using Top-Down Mass Spectrometry and Ultraviolet Photodissociation journal June 2013
Implications of column peak capacity on the separation of complex peptide mixtures in single- and two-dimensional high-performance liquid chromatography journal December 2004
Intact protein separation by chromatographic and/or electrophoretic techniques for top-down proteomics journal December 2011
False discovery rates in spectral identification journal January 2012
Automated 20 kpsi RPLC-MS and MS/MS with Chromatographic Peak Capacities of 1000−1500 and Capabilities in Proteomics and Metabolomics journal May 2005
Sensitive and Reproducible Intact Mass Analysis of Complex Protein Mixtures with Superficially Porous Capillary Reversed-Phase Liquid Chromatography Mass Spectrometry journal December 2011
RPLC of Intact Proteins Using Sub-0.5 μm Particles and Commercial Instrumentation journal July 2013
Analysis of protein complexes using mass spectrometry journal August 2007
Comparison of short and ultrashort-chain alkylsilane-bonded silicas for the high-performance liquid chromatography of proteins by hydrophobic interaction methods journal November 1981
De Novo Sequencing of Unique Sequence Tags for Discovery of Post-Translational Modifications of Proteins journal September 2008
High-Efficiency Nanoscale Liquid Chromatography Coupled On-Line with Mass Spectrometry Using Nanoelectrospray Ionization for Proteomics journal August 2002
Identification of Mobile Elements and Pseudogenes in the Shewanella oneidensis MR-1 Genome journal March 2008
Factors influencing chromatography of proteins on short alkylsilane-bonded large pore-size silicas journal October 1982
Strategy for Degradomic-Peptidomic Analysis of Human Blood Plasma journal May 2010
Effectiveness of CID, HCD, and ETD with FT MS/MS for Degradomic-Peptidomic Analysis: Comparison of Peptide Identification Methods journal September 2011
Protein Analysis by Shotgun/Bottom-up Proteomics journal February 2013
Reversed-phase supports for the resolution of large denatured protein fragments journal March 1981
Reversed-phase chromatography of proteins on resin-based wide-pore packings journal January 1986
General Equation for Peak Capacity in Column Chromatography journal September 1998
Mapping intact protein isoforms in discovery mode using top-down proteomics journal October 2011
Fast protein separation by reversed-phase high-performance liquid chromatography on octadecylsilyl-bonded nonporous silica gel journal November 1991
Efficient Separations of Intact Proteins Using Slip-Flow with Nano-Liquid Chromatography–Mass Spectrometry journal January 2014
Blood Peptidome-Degradome Profile of Breast Cancer journal October 2010
High-efficiency nano- and micro-HPLC - High-resolution Orbitrap-MS platform for top-down proteomics journal September 2010
Top-Down Mass Spectrometry on Tissue Extracts and Biofluids with Isoelectric Focusing and Superficially Porous Silica Liquid Chromatography journal October 2013
High-resolution separations of protein isoforms with liquid chromatography time-of-flight mass spectrometry using polymer monolithic capillary columns journal August 2011
Proteome-Wide Identification of Proteins and Their Modifications with Decreased Ambiguities and Improved False Discovery Rates Using Unique Sequence Tags journal March 2008

Cited By (7)

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Antiproliferative and Proapoptotic Effects of a Protein Component Purified from Aspongopus chinensis Dallas on Cancer Cells In Vitro and In Vivo journal January 2019
Top-down Mass Spectrometry Analysis of Human Serum Autoantibody Antigen-Binding Fragments journal February 2019
Resolving power in liquid chromatography: A trade-off between efficiency and analysis time journal October 2018
Ion-Ion Proton Transfer and Parallel Ion Parking for the Analysis of Mixtures of Intact Proteins on a Modified Orbitrap Mass Analyzer journal August 2019

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