Arabidopsis leaf plasma membrane proteome using a gel free method: Focus onreceptor–like kinases
سال انتشار: 1391
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 490
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شناسه ملی سند علمی:
JR_JPMB-1-1_004
تاریخ نمایه سازی: 16 فروردین 1395
چکیده مقاله:
The hydrophobic proteins of plant plasma membrane still remain largely unknown. For example in theArabidopsis genome, receptor-like kinases (RLKs) are plasma membrane proteins, functioning as the primaryreceptors in the signaling of stress conditions, hormones and the presence of pathogens form a diverse familyof over 610 genes. A limited number of these proteins have appeard in protein profiles. The detection of theseproteins and thus the determination of their dynamics and tissue specificity, is technically challenging due totheir low abundance and association to a lipid membrane. To identify new putative membrane proteinsespecially receptor systems, we used a gel free proteomic strategy based on mass spectrometry analyses of aplasma membrane fraction enriched in hydrophobic proteins. We produced from Arabidopsis leaf a highlypurified plasma membrane fraction with the aqueous two-phase partitioning technique. By separating theproteins in the plasma membrane fraction with ion exchange and reverse phase chromatography and analyzingthe resulting fractions on a MALDI-TOF mass spectrometer, over 900 proteins were detected. The plasmamembrane proteome generated by this approach contains numerous plasma membrane integral proteins, onethird displaying at least four trans-membrane segments. An in silico analysis shows a correlation between theputative functions of the identified proteins and the expected roles for plasma membrane in transport,signaling, cellular traffic and metabolism. Of these proteins, 304 were annotated as membrane proteins, 69were RLKs, distributed among the different receptor families in proportions reflecting the distribution in thegenome. Of the RLKs that were identified, most are reported for the first time at the protein level and willconstitute interesting targets for further functional studies.
کلیدواژه ها:
نویسندگان
H Najafi Zarrini
Laboratory of Plant Physiology, Centre for Ecological and Evolutionary Studies (CEES), University of Groningen, theNetherlands
F Fusetti
Membrane Enzymology, Department of Biochemistry, Groningen Biomolecular Sciences and Biotechnology Institute(GBB), University of Groningen, the Netherlands
J.T.M Elzenga
Laboratory of Plant Physiology, Centre for Ecological and Evolutionary Studies (CEES), University of Groningen, theNetherlands
F.C Lanfermeijer
Seed and Production Physiology Research, Syngenta Seeds B.V., P.O. Box 2, 1600 AA, Enkhuizen, the Netherlands