Evidence map›Paper›PMID 12484460›Full record

ArticleJournal of the American Society for Mass Spectrometry2002

Fragmentation pathway studies of oligonucleotides in matrix-assisted laser desorption/ionization mass spectrometry by charge tagging and H/D exchange.

Chau-Wen Chou, Patrick A Limbach, Richard B Cole

Abstract read
PubMed Publisher
In one paragraph

Article in Journal of the American Society for Mass Spectrometry, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.6field-weighted citation impact, top 39% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

4 citing papers in PubMed, 13 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 3 institutions in 1 country.

Chau-Wen ChouDepartment of Chemistry, Louisiana State University, Baton Rouge, Louisiana, USA. cchou@uno.edu
Patrick A Limbach
Richard B Cole
Louisiana State University · USUniversity of Cincinnati · USUniversity of New Orleans · US

Funding

UPLC for Enhanced Mass Spectrometry of Modified RNAsR01GM058843 · NIGMS · UNIVERSITY OF CINCINNATI · PI LIMBACH, PATRICK A · 1999 to 2025
$5.1M
Mass Spectrometry of Ribosomal RNA:Protein InteractionsR56GM058843 · NIGMS · UNIVERSITY OF CINCINNATI · PI LIMBACH, PATRICK A · 2009 to 2009
$330k
DNA SEQUENCING BY MASS SPECTROMETRIC METHODSR01HG001777 · NHGRI · LOUISIANA STATE UNIV A&M COL BATON ROUGE · PI LIMBACH, PATRICK A · 1998 to 2000
$136k
NHGRI NIH HHS HG01777NIGMS NIH HHS GM58843
6 · The paper itself

Abstract

The desorption and decompositions of synthesized oligonucleotides bearing fixed charge sites have been investigated by linear, delayed-extraction, reflecting and post-source decay mode matrix-assisted laser desorption/ionization (MALDI) mass spectrometry. In contrast to the conventional [M + H]+ forms of unmodified molecules where a proton is likely attached to a nucleobase, here the charge is fixed at one of the termini. In this case the observed fragment ions always incorporate the charge-tag. H/D exchange experiments provide no evidence for intramolecular migration of protons on the phosphate backbone to initiate the fragmentation event. New unique pathways of proton migration from the ribose have been elucidated and are rationalized by a charge-remote fragmentation pathway.

Indexed as

DeuteriumHydrogenIndicators and ReagentsOligonucleotidesSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationTerminology as TopicDeuteriumHydrogenIndicators and ReagentsOligonucleotides

Identifiers

PMID12484460
OpenAlexW1987446193

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.