Evidence map›Paper›PMID 26169044›Full record

ArticleNature communications2015

9-O-Acetylation of sialic acids is catalysed by CASD1 via a covalent acetyl-enzyme intermediate.

Anna-Maria T Baumann, Mark J G Bakkers, Falk F R Buettner, Maike Hartmann, Melanie Grove, Martijn A Langereis, Raoul J de Groot, Martina Mühlenhoff

Abstract read
In one paragraph

Article in Nature communications, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 76 papers.

0numbers the graph read from it
0cells of the map it votes in
76citing papers in PubMed
–field-weighted citation impact
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

76 citing papers in PubMed.

  1. Review
  2. Article
  3. Forgotten Gangliosides:International journal of molecular sciences · 2026
    Review
  4. FUT1- and GAL3ST2-mediated cellular glycan remodeling broadly restricts sialic acid-dependent viral infections.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  5. Article
  6. Identification and Evaluation of CMP-Sialic Acids.Methods in molecular biology (Clifton, N.J.) · 2026
    Article
  7. Article
  8. Article
  9. Review
  10. Loss of sialic acid side-chainProceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  11. Temporal and Sex-DependentInternational journal of molecular sciences · 2025
    Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

16 more citing papers are in PubMed but not listed here.

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

8 authors.

Anna-Maria T BaumannInstitute of Cellular Chemistry, Hannover Medical School, D-30623 Hannover, Germany.
Mark J G BakkersVirology Division, Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, 3584 CH Utrecht, The Netherlands.
Falk F R BuettnerInstitute of Cellular Chemistry, Hannover Medical School, D-30623 Hannover, Germany.
Maike HartmannInstitute of Cellular Chemistry, Hannover Medical School, D-30623 Hannover, Germany.
Melanie GroveInstitute of Cellular Chemistry, Hannover Medical School, D-30623 Hannover, Germany.
Martijn A LangereisVirology Division, Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, 3584 CH Utrecht, The Netherlands.
Raoul J de GrootVirology Division, Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, 3584 CH Utrecht, The Netherlands.
Martina MühlenhoffInstitute of Cellular Chemistry, Hannover Medical School, D-30623 Hannover, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Sialic acids, terminal sugars of glycoproteins and glycolipids, play important roles in development, cellular recognition processes and host-pathogen interactions. A common modification of sialic acids is 9-O-acetylation, which has been implicated in sialoglycan recognition, ganglioside biology, and the survival and drug resistance of acute lymphoblastic leukaemia cells. Despite many functional implications, the molecular basis of 9-O-acetylation has remained elusive thus far. Following cellular approaches, including selective gene knockout by CRISPR/Cas genome editing, we here show that CASD1--a previously identified human candidate gene--is essential for sialic acid 9-O-acetylation. In vitro assays with the purified N-terminal luminal domain of CASD1 demonstrate transfer of acetyl groups from acetyl-coenzyme A to CMP-activated sialic acid and formation of a covalent acetyl-enzyme intermediate. Our study provides direct evidence that CASD1 is a sialate O-acetyltransferase and serves as key enzyme in the biosynthesis of 9-O-acetylated sialoglycans.

Indexed as

AcetylationAcetyltransferasesAnimalsCatalysisCatalytic DomainCell LineCell Line, TumorCHO CellsChromatography, High Pressure LiquidCricetulusCRISPR-Cas SystemsDogsElectrophoresis, Polyacrylamide GelGene Knockout TechniquesHEK293 CellsHumans9-O-acetyl-N-acetylneuraminic acidAcetyltransferasesalpha-N-acetylneuraminate alpha-2,8-sialyltransferaseCASD1 protein, humanSialic AcidsSialyltransferases

Identifiers

PMID26169044
PMCPMC4510713

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Registered trials

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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.