Evidence map›Paper›PMID 20679504›Full record

ArticleAntimicrobial agents and chemotherapy2010

Origin and molecular evolution of the determinant of methicillin resistance in staphylococci.

Sae Tsubakishita, Kyoko Kuwahara-Arai, Takashi Sasaki, Keiichi Hiramatsu

Erratum issuedOpen access · greenAbstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 97 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
97citing papers in PubMed, 1 pooled it
7.5field-weighted citation impact, top 2% 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

97 citing papers in PubMed, 1 synthesis or guideline pooled it, 210 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Methicillin-resistant Staphylococcus aureus.Nature reviews. Disease primers · 2026
    Review
  4. Article
  5. Review
  6. Review
  7. First fatal human bloodstream infection caused byFrontiers in cellular and infection microbiology · 2026
    Article
  8. Article
  9. Article
  10. Article
  11. Journal of bacteriology · 2025
    Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. SCCBiofilm · 2024
    Article
  18. Article
  19. Article
  20. Article

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

4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Sae TsubakishitaDepartment of Infection Control Science, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan.
Kyoko Kuwahara-Arai
Takashi Sasaki
Keiichi Hiramatsu
Juntendo University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Methicillin-resistant Staphylococcus aureus (MRSA) is one of the most important multidrug-resistant pathogens around the world. MRSA is generated when methicillin-susceptible S. aureus (MSSA) exogenously acquires a methicillin resistance gene, mecA, carried by a mobile genetic element, staphylococcal cassette chromosome mec (SCCmec), which is speculated to be transmissible across staphylococcal species. However, the origin/reservoir of the mecA gene has remained unclear. Finding the origin/reservoir of the mecA gene is important for understanding the evolution of MRSA. Moreover, it may contribute to more effective control measures for MRSA. Here we report on one of the animal-related Staphylococcus species, S. fleurettii, as the highly probable origin of the mecA gene. The mecA gene of S. fleurettii was found on the chromosome linked with the essential genes for the growth of staphylococci and was not associated with SCCmec. The mecA locus of the S. fleurettii chromosome has a sequence practically identical to that of the mecA-containing region (∼12 kbp long) of SCCmec. Furthermore, by analyzing the corresponding gene loci (over 20 kbp in size) of S. sciuri and S. vitulinus, which evolved from a common ancestor with that of S. fleurettii, the speciation-related mecA gene homologues were identified, indicating that mecA of S. fleurettii descended from its ancestor and was not recently acquired. It is speculated that SCCmec came into form by adopting the S. fleurettii mecA gene and its surrounding chromosomal region. Our finding suggests that SCCmec was generated in Staphylococcus cells living in animals by acquiring the intrinsic mecA region of S. fleurettii, which is a commensal bacterium of animals.

Indexed as

Evolution, MolecularBacterial ProteinsChromosomes, BacterialMethicillin ResistanceMicrobial Sensitivity TestsMolecular Sequence DataPenicillin-Binding ProteinsPhylogenyRNA, Ribosomal, 16SStaphylococcusBacterial ProteinsmecA protein, Staphylococcus aureusPenicillin-Binding ProteinsRNA, Ribosomal, 16S

Identifiers

PMID20679504
PMCPMC2944575
OpenAlexW2136345186

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.