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Study · Not a test of the peptide alone · 2012

1 result

Protein isoaspartate methyltransferase-mediated 18O-labeling of isoaspartic acid for mass spectrometry analysis.

Liu M, Cheetham J, Cauchon N, Ostovic J, Ni W, Ren D, Zhou ZS

Analytical chemistry27 Dec 2011Cited by 48 (Europe PMC)

PMID22132761 (opens in a new tab)DOI10.1021/ac202652z (opens in a new tab)PepBankPUB-22132761
Publisher pagePubMedAsk about this study
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Summary

The text of this summary is not shown here, because the article license does not allow reuse. Read it at the source (opens in a new tab)

Text rights: Publisher copyright. Results still quote short attributed sentences.

Results from this study1

No result from this study comes from a test of the peptide.

Studies that did not test the peptide alone1

In this study, Delta sleep-inducing peptide (DSIP) was a lab tool or a carrier, part of a mix, or the subject of a lab method. These results are not evidence about taking Delta sleep-inducing peptide (DSIP).

  1. 01LabNot a test of Delta sleep-inducing peptide (DSIP) aloneIn vitro (cell-free)Other

    An enzymatic 18O-labeling mass spectrometry assay detected and located isoaspartyl sites in the beta-DSIP peptide.

    In plain wordsIn lab tests, a new mass spectrometry method found altered aspartic acid sites in a DSIP peptide.

    Peptide
    Delta sleep-inducing peptide (DSIP)
    Outcome
    Not applicableDetection of isoAsp in beta-DSIP by 18O-labeling mass spectrometry
    Study

    n: not reported in source

    PIMT-mediated 18O-labeling with mass spectrometry
    Outcome group
    Receptor activity and mechanism · Pharmacology

    Source sentences

    Summary
    Detection and site identification of several isoAsp peptides in a monoclonal antibody and the β-delta sleep-inducing peptide (DSIP) are demonstrated.

    In this study, Delta sleep-inducing peptide (DSIP) was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking Delta sleep-inducing peptide (DSIP).

AI wrote and checked these results. AI can make mistakes, so check important results against the source.

Version history

PepBank keeps every version of the data on this study. Status changes from Retraction Watch, Europe PMC and Crossref are listed with their source.

  1. Version 2Current

    10 Oct 2026, 08:55 UTC

    Study results updated

  2. Version 1

    9 Oct 2026, 03:04 UTC

    First added · source update from Europe PMC

Subjects

Terms as the source lists them.

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