Evidence map›Paper›PMID 18219573›Full record

ArticleGlycoconjugate journal2008

Sequence determination of a non-sulfated glycosaminoglycan-like polysaccharide from melanin-free ink of the squid Ommastrephes bartrami by negative-ion electrospray tandem mass spectrometry and NMR spectroscopy.

Shiguo Chen, Jie Xu, Changhu Xue, Ping Dong, Wenjing Sheng, Guangli Yu, Wengang Chai

Abstract read
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In one paragraph

Article in Glycoconjugate journal, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
0.4field-weighted citation impact, top 36% 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

21 citing papers in PubMed, 68 citations in OpenAlex.

  1. Polysaccharides fromCurrent medicinal chemistry · 2026
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  2. Bioactive Polysaccharides from FermentedMolecules (Basel, Switzerland) · 2025
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  4. Insights into Common Octopus (Marine drugs · 2023
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  10. Article
  11. Review
  12. Article
  13. Article
  14. Polysaccharide fromIranian journal of basic medical sciences · 2016
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. Review
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

7 authors at 2 institutions in 3 countries.

Shiguo ChenCollege of Food Science and Technology, Ocean University of China, Qingdao, Shandong, China.
Jie Xu
Changhu Xue
Ping Dong
Wenjing Sheng
Guangli Yu
Wengang Chai
Ocean University of China · CNSt Mark's Hospital · GB

Funding

Medical Research Council G0600512
6 · The paper itself

Abstract

A non-sulfated polysaccharide was isolated from the ink sac of squid Ommastrephes bartrami after removal of the melanin granules. The carbohydrate sequence of this polysaccharide was assigned by negative-ion electrospray tandem mass spectrometry with collision-induced dissociation of the oligosaccharide fractions produced by partial acid hydrolysis of the polysaccharide. The structural determination was completed by NMR for assignment of anomeric configuration and confirmation of linkage information and it was unambiguously identified as a glycosaminoglycan-like polysaccharide containing a glucuronic acid-fucose (GlcA-Fuc) disaccharide repeat in the main chain and a N-acetylgalactosamine (GalNAc) branch at Fuc position 3: -[3GlcAbeta1-4(GalNAcalpha1-3)Fucalpha1](n)-. Partial hydrolysis of the polysaccharide to obtain several oligosaccharide fractions with different numbers of the repeating unit assisted the assignment. In the negative-ion tandem mass spectrometric analysis, the unique (0,2)A type fragmentation was important to establish the presence of a 4-linked fucose in the main polysaccharide chain and a GalNAc branch at the Fuc position-3 of the disaccharide repeat.

Indexed as

InkSequence AnalysisAnimalsCarbohydrate SequenceChemical FractionationChromatography, GelDecapodiformesGlycosaminoglycansMagnetic Resonance SpectroscopyMelaninsMolecular Sequence DataMonosaccharidesOligosaccharidesSpectrometry, Mass, Electrospray IonizationGlycosaminoglycansMelaninsMonosaccharidesOligosaccharides

Identifiers

PMID18219573
OpenAlexW2058794398

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.