Proteomics

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Analytical framework for peptidomics applied to large scale neuropeptide identification


ABSTRACT: Endogenous peptides are extracted and seperated with nLC with HCD fragmentation on a LTQ Orbitrap Velos. Data analysis was done with Mascot and MaxQuant

INSTRUMENT(S): LTQ Orbitrap Velos

ORGANISM(S): Rattus Rattus (black Rat)

TISSUE(S): Brain

SUBMITTER: Christian Kelstrup  

LAB HEAD: Jesper V. Olsen

PROVIDER: PXD002431 | Pride | 2016-05-03

REPOSITORIES: Pride

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Publications

Analytic framework for peptidomics applied to large-scale neuropeptide identification.

Secher Anna A   Kelstrup Christian D CD   Conde-Frieboes Kilian W KW   Pyke Charles C   Raun Kirsten K   Wulff Birgitte S BS   Olsen Jesper V JV  

Nature communications 20160504


Large-scale mass spectrometry-based peptidomics for drug discovery is relatively unexplored because of challenges in peptide degradation and identification following tissue extraction. Here we present a streamlined analytical pipeline for large-scale peptidomics. We developed an optimized sample preparation protocol to achieve fast, reproducible and effective extraction of endogenous peptides from sub-dissected organs such as the brain, while diminishing unspecific protease activity. Each peptid  ...[more]

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