Evidence map›Paper›PMID 25155594›Full record

ArticleAntimicrobial agents and chemotherapy2014

PBP2a mutations causing high-level Ceftaroline resistance in clinical methicillin-resistant Staphylococcus aureus isolates.

S Wesley Long, Randall J Olsen, Shrenik C Mehta, Timothy Palzkill, Patricia L Cernoch, Katherine K Perez, William L Musick, Adriana E Rosato, James M Musser

Open access · bronzeAbstract readCase Reports
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 79 papers.

0numbers the graph read from it
0cells of the map it votes in
79citing papers in PubMed
8.8field-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

79 citing papers in PubMed, 146 citations in OpenAlex.

  1. Antimicrobial agents and chemotherapy · 2019
    Trial
  2. Review
  3. An Achilles' heel for methicillin-resistantAntimicrobial agents and chemotherapy · 2026
    Review
  4. Article
  5. Review
  6. Review
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Ceftaroline Exhibits PromisingInternational journal of microbiology · 2025
    Article
  15. Article
  16. Staph wars: the antibiotic pipeline strikes back.Microbiology (Reading, England) · 2023
    Review
  17. Review
  18. Prevalence ofBiomedicines · 2023
    Article
  19. Article
  20. Vancomycin Resistance inMicroorganisms · 2022
    Review

19 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

9 authors at 3 institutions in 1 country.

S Wesley LongCenter for Molecular and Translational Human Infectious Diseases Research, Department of Pathology and Genomic Medicine, Houston Methodist Hospital and Houston Methodist Research Institute, Houston, Texas, USA.
Randall J OlsenCenter for Molecular and Translational Human Infectious Diseases Research, Department of Pathology and Genomic Medicine, Houston Methodist Hospital and Houston Methodist Research Institute, Houston, Texas, USA.
Shrenik C MehtaDepartment of Pharmacology, Baylor College of Medicine, Houston, Texas, USA.
Timothy PalzkillDepartment of Pharmacology, Baylor College of Medicine, Houston, Texas, USA.
Patricia L CernochCenter for Molecular and Translational Human Infectious Diseases Research, Department of Pathology and Genomic Medicine, Houston Methodist Hospital and Houston Methodist Research Institute, Houston, Texas, USA.
Katherine K PerezCenter for Molecular and Translational Human Infectious Diseases Research, Department of Pathology and Genomic Medicine, Houston Methodist Hospital and Houston Methodist Research Institute, Houston, Texas, USA Department of Pharmacy, Houston Methodist Hospital, Houston, Texas, USA.
William L MusickDepartment of Pharmacy, Houston Methodist Hospital, Houston, Texas, USA.
Adriana E RosatoCenter for Molecular and Translational Human Infectious Diseases Research, Department of Pathology and Genomic Medicine, Houston Methodist Hospital and Houston Methodist Research Institute, Houston, Texas, USA.
James M MusserCenter for Molecular and Translational Human Infectious Diseases Research, Department of Pathology and Genomic Medicine, Houston Methodist Hospital and Houston Methodist Research Institute, Houston, Texas, USA jmmusser@houstonmethodist.org.
Houston Methodist · USBaylor College of Medicine · USMethodist Hospital · US

Funding

BETA-LACTAMASE MUTATIONS IN ANTIBIOTIC RESISTANCER01AI032956 · NIAID · BAYLOR COLLEGE OF MEDICINE · PI Timothy Palzkill · 1992 to 2026
$6.5M
Beta Lactamase Mutations in Antibiotic ResistanceR37AI032956 · NIAID · BAYLOR COLLEGE OF MEDICINE · PI PALZKILL, TIMOTHY · 2001 to 2010
$3.3M
B-lactam mediated SOS response and expression of resistance in clinical MRSAR01AI080688 · NIAID · VIRGINIA COMMONWEALTH UNIVERSITY · PI ROSATO, ADRIANA E · 2010 to 2014
$2.0M
Beta Lactamase Mutations in Antibiotic ResistanceR56AI032956 · NIAID · BAYLOR COLLEGE OF MEDICINE · PI PALZKILL, TIMOTHY · 2016 to 2016
$394k
NIAID NIH HHS 5R01AI080688-05NIAID NIH HHS AI32956NIAID NIH HHS R01 AI032956NIAID NIH HHS R01 AI080688NIAID NIH HHS R37 AI032956NIAID NIH HHS R56 AI032956
6 · The paper itself

Abstract

Ceftaroline is the first member of a novel class of cephalosporins approved for use in the United States. Although prior studies have identified eight ceftaroline-resistant methicillin-resistant Staphylococcus aureus (MRSA) isolates in Europe and Asia with MICs ranging from 4 to 8 mg/liter, high-level resistance to ceftaroline (>32 mg/liter) has not been described in MRSA strains isolated in the United States. We isolated a ceftaroline-resistant (MIC > 32 mg/liter) MRSA strain from the blood of a cystic fibrosis patient and five MRSA strains from the respiratory tract of this patient. Whole-genome sequencing identified two amino acid-altering mutations uniquely present in the ceftaroline-binding pocket of the transpeptidase region of penicillin-binding protein 2a (PBP2a) in ceftaroline-resistant isolates. Biochemical analyses and the study of isogenic mutant strains confirmed that these changes caused ceftaroline resistance. Thus, we identified the molecular mechanism of ceftaroline resistance in the first MRSA strain with high-level ceftaroline resistance isolated in the United States.

Indexed as

AdultAmino Acid SubstitutionAnti-Bacterial AgentsBase SequenceBinding SitesCeftarolineCephalosporinsCystic FibrosisDNA, BacterialDrug Resistance, BacterialHumansMaleMethicillin-Resistant Staphylococcus aureusMicrobial Sensitivity TestsMutS DNA Mismatch-Binding ProteinPenicillin-Binding ProteinsAnti-Bacterial AgentsCeftarolineCephalosporinsDNA, BacterialMutS DNA Mismatch-Binding ProteinPenicillin-Binding Proteins

Identifiers

PMID25155594
PMCPMC4249384
OpenAlexW2039034401

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.