quantitative proteomics;
metabolic labelling;
mass spectrometry;
protein expression;
oxidative stress;
hydroponics;
D O I:
10.1016/j.phytochem.2008.04.007
中图分类号:
Q5 [生物化学];
Q7 [分子生物学];
学科分类号:
071010 ;
081704 ;
摘要:
Hydroponic isotope labelling of entire plants (HILEP) is a cost-effective method enabling metabolic labelling of whole and mature plants with a stable isotope such as (15)N. By utilising hydroponic media that contain (15)N inorganic salts as the sole nitrogen source, near to 100% (15)N-labelling of proteins can be achieved. In this study, it is shown that HILEP, in combination with mass spectrometry, is suitable for relative protein quantitation of seven week-old Arabidopsis plants submitted to oxidative stress. Protein extracts from pooled (14)N- and (15)N-hydroponically grown plants were fractionated by SDS-PAGE, digested and analysed by liquid chromatography electrospray ionisation tandem mass spectrometry (LC-ESI-MS/MS). Proteins were identified and the spectra of (14)N/(15)N peptide pairs were extracted using their m/z chromatographic retention time, isotopic distributions, and the m/z difference between the (14)N and (15)N peptides. Relative amounts were calculated as the ratio of the sum of the peak areas of the two distinct (14)N and (15)N peptide isotope envelopes. Using Mascot and the open source trans-proteomic pipeline (TPP), the data processing was automated for global proteome quantitation down to the isoform level by extracting isoform specific peptides. With this combination of metabolic labelling and mass spectrometry it was possible to show differential protein expression in the apoplast of plants submitted to oxidative stress. Moreover, it was possible to discriminate between differentially expressed isoforms belonging to the same protein family, such as isoforms of xylanases and pathogen-related glucanases (PR 2). (C) 2008 Elsevier Ltd. All rights reserved.
机构:Univ London Royal Holloway & Bedford New Coll, Sch Biol Sci, Egham TW20 0EX, Surrey, England
Bindschedler, Laurence V.
;
Dewdney, Julia
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机构:Univ London Royal Holloway & Bedford New Coll, Sch Biol Sci, Egham TW20 0EX, Surrey, England
Dewdney, Julia
;
Blee, Kris A.
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机构:Univ London Royal Holloway & Bedford New Coll, Sch Biol Sci, Egham TW20 0EX, Surrey, England
Blee, Kris A.
;
Stone, Julie M.
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机构:Univ London Royal Holloway & Bedford New Coll, Sch Biol Sci, Egham TW20 0EX, Surrey, England
Stone, Julie M.
;
Asai, Tsuneaki
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机构:Univ London Royal Holloway & Bedford New Coll, Sch Biol Sci, Egham TW20 0EX, Surrey, England
Asai, Tsuneaki
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Plotnikov, Julia
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机构:Univ London Royal Holloway & Bedford New Coll, Sch Biol Sci, Egham TW20 0EX, Surrey, England
Plotnikov, Julia
;
Denoux, Carine
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机构:Univ London Royal Holloway & Bedford New Coll, Sch Biol Sci, Egham TW20 0EX, Surrey, England
Denoux, Carine
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Hayes, Tezni
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机构:Univ London Royal Holloway & Bedford New Coll, Sch Biol Sci, Egham TW20 0EX, Surrey, England
Hayes, Tezni
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Gerrish, Chris
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机构:Univ London Royal Holloway & Bedford New Coll, Sch Biol Sci, Egham TW20 0EX, Surrey, England
Gerrish, Chris
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Davies, Dewi R.
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机构:Univ London Royal Holloway & Bedford New Coll, Sch Biol Sci, Egham TW20 0EX, Surrey, England
Davies, Dewi R.
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Ausubel, Frederick M.
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机构:Univ London Royal Holloway & Bedford New Coll, Sch Biol Sci, Egham TW20 0EX, Surrey, England
Ausubel, Frederick M.
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Bolwell, G. Paul
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机构:
Univ London Royal Holloway & Bedford New Coll, Sch Biol Sci, Egham TW20 0EX, Surrey, EnglandUniv London Royal Holloway & Bedford New Coll, Sch Biol Sci, Egham TW20 0EX, Surrey, England
机构:Univ London Royal Holloway & Bedford New Coll, Sch Biol Sci, Egham TW20 0EX, Surrey, England
Bindschedler, Laurence V.
;
Dewdney, Julia
论文数: 0引用数: 0
h-index: 0
机构:Univ London Royal Holloway & Bedford New Coll, Sch Biol Sci, Egham TW20 0EX, Surrey, England
Dewdney, Julia
;
Blee, Kris A.
论文数: 0引用数: 0
h-index: 0
机构:Univ London Royal Holloway & Bedford New Coll, Sch Biol Sci, Egham TW20 0EX, Surrey, England
Blee, Kris A.
;
Stone, Julie M.
论文数: 0引用数: 0
h-index: 0
机构:Univ London Royal Holloway & Bedford New Coll, Sch Biol Sci, Egham TW20 0EX, Surrey, England
Stone, Julie M.
;
Asai, Tsuneaki
论文数: 0引用数: 0
h-index: 0
机构:Univ London Royal Holloway & Bedford New Coll, Sch Biol Sci, Egham TW20 0EX, Surrey, England
Asai, Tsuneaki
;
Plotnikov, Julia
论文数: 0引用数: 0
h-index: 0
机构:Univ London Royal Holloway & Bedford New Coll, Sch Biol Sci, Egham TW20 0EX, Surrey, England
Plotnikov, Julia
;
Denoux, Carine
论文数: 0引用数: 0
h-index: 0
机构:Univ London Royal Holloway & Bedford New Coll, Sch Biol Sci, Egham TW20 0EX, Surrey, England
Denoux, Carine
;
Hayes, Tezni
论文数: 0引用数: 0
h-index: 0
机构:Univ London Royal Holloway & Bedford New Coll, Sch Biol Sci, Egham TW20 0EX, Surrey, England
Hayes, Tezni
;
Gerrish, Chris
论文数: 0引用数: 0
h-index: 0
机构:Univ London Royal Holloway & Bedford New Coll, Sch Biol Sci, Egham TW20 0EX, Surrey, England
Gerrish, Chris
;
Davies, Dewi R.
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h-index: 0
机构:Univ London Royal Holloway & Bedford New Coll, Sch Biol Sci, Egham TW20 0EX, Surrey, England
Davies, Dewi R.
;
Ausubel, Frederick M.
论文数: 0引用数: 0
h-index: 0
机构:Univ London Royal Holloway & Bedford New Coll, Sch Biol Sci, Egham TW20 0EX, Surrey, England
Ausubel, Frederick M.
;
Bolwell, G. Paul
论文数: 0引用数: 0
h-index: 0
机构:
Univ London Royal Holloway & Bedford New Coll, Sch Biol Sci, Egham TW20 0EX, Surrey, EnglandUniv London Royal Holloway & Bedford New Coll, Sch Biol Sci, Egham TW20 0EX, Surrey, England