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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 (ncbitaxon:10117)

SUBMITTER: Jesper V. Olsen

PROVIDER: MSV000080552 | MassIVE | Thu Feb 16 18:09:00 GMT 2017

SECONDARY ACCESSION(S): PXD002431

REPOSITORIES: MassIVE

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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]

PMID: 27142507

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