The human erythrocyte proteome

Analysis by ion trap mass spectrometry

David G. Kakhniashvili, Lee A. Bulla, Steven Goodman

Research output: Contribution to journalArticle

173 Citations (Scopus)

Abstract

This report describes an analysis of the red blood cell proteome by ion trap tandem mass spectrometry in line with liquid chromatography. Mature red blood cells lack all internal cell structures and consist of cytoplasm within a plasma membrane envelope. To maximize outcome, total red blood cell protein was divided into two fractions of membrane-associated proteins and cytoplasmic proteins. Both fractions were divided into subfractions, and proteins were identified in each fraction separately through tryptic digestion. Membrane protein digests were collected from externally exposed proteins, internally exposed proteins, "spectrin extract" mainly consisting of membrane skeleton proteins, and membrane proteins minus spectrin extract. Cytoplasmic proteins were divided into 21 fractions based on molecular mass by size exclusion chromatography. The tryptic peptides were separated by reverse-phase high-performance liquid chromatography and identified by ion trap tandem mass spectrometry. A total of 181 unique protein sequences were identified: 91 in the membrane fractions and 91 in the cytoplasmic fractions. Glyceraldehyde-3-phosphate dehydrogenase was identified with high sequence coverage in both membrane and cytoplasmic fractions. Identified proteins include membrane skeletal proteins, metabolic enzymes, transporters and channel proteins, adhesion proteins, hemoglobins, cellular defense proteins, proteins of the ubiquitin-proteasome system, G-proteins of the Ras family, kinases, chaperone proteins, proteases, translation initiation factors, and others. In addition to the known proteins, there were 43 proteins whose identification was not determined.

Original languageEnglish (US)
Pages (from-to)501-509
Number of pages9
JournalMolecular and Cellular Proteomics
Volume3
Issue number5
DOIs
StatePublished - May 1 2004
Externally publishedYes

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Proteome
Mass spectrometry
Mass Spectrometry
Erythrocytes
Ions
Proteins
Membrane Proteins
Spectrin
Membranes
Tandem Mass Spectrometry
Blood
Cells
Translational Peptide Chain Initiation
Cell Membrane
Peptide Initiation Factors
Glyceraldehyde-3-Phosphate Dehydrogenases
Proteasome Endopeptidase Complex
Reverse-Phase Chromatography
Ubiquitin
GTP-Binding Proteins

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Biochemistry
  • Molecular Biology

Cite this

The human erythrocyte proteome : Analysis by ion trap mass spectrometry. / Kakhniashvili, David G.; Bulla, Lee A.; Goodman, Steven.

In: Molecular and Cellular Proteomics, Vol. 3, No. 5, 01.05.2004, p. 501-509.

Research output: Contribution to journalArticle

Kakhniashvili, David G. ; Bulla, Lee A. ; Goodman, Steven. / The human erythrocyte proteome : Analysis by ion trap mass spectrometry. In: Molecular and Cellular Proteomics. 2004 ; Vol. 3, No. 5. pp. 501-509.
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