Accounting for protein subcellular localization: A compartmental map of the rat liver proteome

Michel Jadot, Marielle Boonen, Jaqueline Thirion, Nan Wang, Jinchuan Xing, Caifeng Zhao, Abla Tannous, Meiqian Qian, Haiyan Zheng, John K. Everett, Dirk Moore, David E. Sleat, Peter Lobel

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Accurate knowledge of the intracellular location of proteins is important for numerous areas of biomedical research including assessing fidelity of putative proteinprotein interactions, modeling cellular processes at a system-wide level and investigating metabolic and disease pathways. Many proteins have not been localized, or have been incompletely localized, partly because most studies do not account for entire subcellular distribution. Thus, proteins are frequently assigned to one organelle whereas a significant fraction may reside elsewhere. As a step toward a comprehensive cellular map, we used subcellular fractionation with classic balance sheet analysis and isobaric labeling/quantitative mass spectrometry to assign locations to >6000 rat liver proteins. We provide quantitative data and error estimates describing the distribution of each protein among the eight major cellular compartments: nucleus, mitochondria, lysosomes, peroxisomes, endoplasmic reticulum, Golgi, plasma membrane and cytosol. Accounting for total intracellular distribution improves quality of organelle assignments and assigns proteins with multiple locations. Protein assignments and supporting data are available online through the Prolocate website (http://prolocate.cabm.rutgers. edu). As an example of the utility of this data set, we have used organelle assignments to help analyze whole exome sequencing data from an infant dying at 6 months of age from a suspected neurodegenerative lysosomal storage disorder of unknown etiology. Sequencing data was prioritized using lists of lysosomal proteins comprising wellestablished residents of this organelle as well as novel candidates identified in this study. The latter included copper transporter 1, encoded by SLC31A1, which we localized to both the plasma membrane and lysosome. The patient harbors two predicted loss of function mutations in SLC31A1, suggesting that this may represent a heretofore undescribed recessive lysosomal storage disease gene.

Original languageEnglish (US)
Pages (from-to)194-212
Number of pages19
JournalMolecular and Cellular Proteomics
Volume16
Issue number2
DOIs
StatePublished - Feb 2017

Fingerprint

Proteome
Liver
Rats
Organelles
Proteins
Cell membranes
Lysosomes
Cell Membrane
Lysosomal Storage Diseases
Exome
Mitochondria
Peroxisomes
Metabolic Diseases
Fractionation
Ports and harbors
Metabolic Networks and Pathways
Endoplasmic Reticulum
Cytosol
Labeling
Mass spectrometry

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Biochemistry
  • Molecular Biology

Cite this

Jadot, Michel ; Boonen, Marielle ; Thirion, Jaqueline ; Wang, Nan ; Xing, Jinchuan ; Zhao, Caifeng ; Tannous, Abla ; Qian, Meiqian ; Zheng, Haiyan ; Everett, John K. ; Moore, Dirk ; Sleat, David E. ; Lobel, Peter. / Accounting for protein subcellular localization : A compartmental map of the rat liver proteome. In: Molecular and Cellular Proteomics. 2017 ; Vol. 16, No. 2. pp. 194-212.
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Jadot, M, Boonen, M, Thirion, J, Wang, N, Xing, J, Zhao, C, Tannous, A, Qian, M, Zheng, H, Everett, JK, Moore, D, Sleat, DE & Lobel, P 2017, 'Accounting for protein subcellular localization: A compartmental map of the rat liver proteome', Molecular and Cellular Proteomics, vol. 16, no. 2, pp. 194-212. https://doi.org/10.1074/mcp.M116.064527

Accounting for protein subcellular localization : A compartmental map of the rat liver proteome. / Jadot, Michel; Boonen, Marielle; Thirion, Jaqueline; Wang, Nan; Xing, Jinchuan; Zhao, Caifeng; Tannous, Abla; Qian, Meiqian; Zheng, Haiyan; Everett, John K.; Moore, Dirk; Sleat, David E.; Lobel, Peter.

In: Molecular and Cellular Proteomics, Vol. 16, No. 2, 02.2017, p. 194-212.

Research output: Contribution to journalArticle

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T2 - A compartmental map of the rat liver proteome

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AU - Xing, Jinchuan

AU - Zhao, Caifeng

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AU - Sleat, David E.

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