Differential proteomic analysis of mammalian tissues using SILAM.

Differential expression of proteins between tissues underlies organ-specific functions. Under certain pathological conditions, this may also lead to tissue vulnerability. Furthermore, post-translational modifications exist between different cell types and pathological conditions. We employed SILAM (...

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Main Authors: Daniel B McClatchy, Lujian Liao, Sung Kyu Park, Tao Xu, Bingwen Lu, John R Yates Iii
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2011-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC3024400?pdf=render
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author Daniel B McClatchy
Lujian Liao
Sung Kyu Park
Tao Xu
Bingwen Lu
John R Yates Iii
author_facet Daniel B McClatchy
Lujian Liao
Sung Kyu Park
Tao Xu
Bingwen Lu
John R Yates Iii
author_sort Daniel B McClatchy
collection DOAJ
description Differential expression of proteins between tissues underlies organ-specific functions. Under certain pathological conditions, this may also lead to tissue vulnerability. Furthermore, post-translational modifications exist between different cell types and pathological conditions. We employed SILAM (Stable Isotope Labeling in Mammals) combined with mass spectrometry to quantify the proteome between mammalian tissues. Using (15)N labeled rat tissue, we quantified 3742 phosphorylated peptides in nuclear extracts from liver and brain tissue. Analysis of the phosphorylation sites revealed tissue specific kinase motifs. Although these tissues are quite different in their composition and function, more than 500 protein identifications were common to both tissues. Specifically, we identified an up-regulation in the brain of the phosphoprotein, ZFHX1B, in which a genetic deletion causes the neurological disorder Mowat-Wilson syndrome. Finally, pathway analysis revealed distinct nuclear pathways enriched in each tissue. Our findings provide a valuable resource as a starting point for further understanding of tissue specific gene regulation and demonstrate SILAM as a useful strategy for the differential proteomic analysis of mammalian tissues.
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spelling doaj.art-ea0f4b20b3484f408e3a41a5b2e1b30d2022-12-22T00:48:56ZengPublic Library of Science (PLoS)PLoS ONE1932-62032011-01-0161e1603910.1371/journal.pone.0016039Differential proteomic analysis of mammalian tissues using SILAM.Daniel B McClatchyLujian LiaoSung Kyu ParkTao XuBingwen LuJohn R Yates IiiDifferential expression of proteins between tissues underlies organ-specific functions. Under certain pathological conditions, this may also lead to tissue vulnerability. Furthermore, post-translational modifications exist between different cell types and pathological conditions. We employed SILAM (Stable Isotope Labeling in Mammals) combined with mass spectrometry to quantify the proteome between mammalian tissues. Using (15)N labeled rat tissue, we quantified 3742 phosphorylated peptides in nuclear extracts from liver and brain tissue. Analysis of the phosphorylation sites revealed tissue specific kinase motifs. Although these tissues are quite different in their composition and function, more than 500 protein identifications were common to both tissues. Specifically, we identified an up-regulation in the brain of the phosphoprotein, ZFHX1B, in which a genetic deletion causes the neurological disorder Mowat-Wilson syndrome. Finally, pathway analysis revealed distinct nuclear pathways enriched in each tissue. Our findings provide a valuable resource as a starting point for further understanding of tissue specific gene regulation and demonstrate SILAM as a useful strategy for the differential proteomic analysis of mammalian tissues.http://europepmc.org/articles/PMC3024400?pdf=render
spellingShingle Daniel B McClatchy
Lujian Liao
Sung Kyu Park
Tao Xu
Bingwen Lu
John R Yates Iii
Differential proteomic analysis of mammalian tissues using SILAM.
PLoS ONE
title Differential proteomic analysis of mammalian tissues using SILAM.
title_full Differential proteomic analysis of mammalian tissues using SILAM.
title_fullStr Differential proteomic analysis of mammalian tissues using SILAM.
title_full_unstemmed Differential proteomic analysis of mammalian tissues using SILAM.
title_short Differential proteomic analysis of mammalian tissues using SILAM.
title_sort differential proteomic analysis of mammalian tissues using silam
url http://europepmc.org/articles/PMC3024400?pdf=render
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