Proteomics

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Gel-free mass spectrometry analysis of Drosophila melanogaster heads


ABSTRACT: Here we describe a bottom-up approach to analyse an enriched membrane fraction from Drosophila melanogaster heads using multidimensional liquid chromatography (LC) coupled with tandem-mass spectrometry (MS/MS) that relies on a complete solubilisation and digestion of proteins. An enriched membrane fraction was prepared using equilibrium density centrifugation on a discontinual sucrose gradient, followed by solubilisation using FASP method, tryptic and consequential chymotryptic digestion of proteins. Peptides were separated by reversed-phase (RP) LC at high pH in the first dimension and acidic RP-LC coupled directly to Orbitrap Velos Pro mass spectrometer.

INSTRUMENT(S): LTQ Orbitrap Velos

ORGANISM(S): Drosophila Melanogaster (fruit Fly)

TISSUE(S): Head

SUBMITTER: Jana Aradska  

LAB HEAD: Gert Lubec

PROVIDER: PXD001712 | Pride | 2015-07-27

REPOSITORIES: Pride

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Publications

Gel-free mass spectrometry analysis of Drosophila melanogaster heads.

Aradska Jana J   Bulat Tanja T   Sialana Fernando J FJ   Birner-Gruenberger Ruth R   Erich Buchner B   Lubec Gert G   Lubec Gert G  

Proteomics 20150910 19


Membrane proteins play key roles in several fundamental biological processes such as cell signalling, energy metabolism and transport. Despite the significance, these still remain an under-represented group in proteomics datasets. Herein, a bottom-up approach to analyse an enriched membrane fraction from Drosophila melanogaster heads using multidimensional liquid chromatography (LC) coupled with tandem-mass spectrometry (MS/MS) that relies on complete solubilisation and digestion of proteins, is  ...[more]

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