Evidence map›Paper›PMID 34191496›Full record

ArticleACS infectious diseases2021

Atypically Modified Carbapenem Antibiotics Display Improved Antimycobacterial Activity in the Absence of β-Lactamase Inhibitors.

Rashmi Gupta, Noora M S A Al-Kharji, Maha A Alqurafi, Thu Q Nguyen, Weirui Chai, Pojun Quan, Riya Malhotra, Breven S Simcox, Phil Mortimer, Leighanne A Brammer Basta and 2 more

Open access · greenAbstract read
In one paragraph

Article in ACS infectious diseases, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
3.0field-weighted citation impact, top 8% 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

16 citing papers in PubMed, 24 citations in OpenAlex.

  1. Article
  2. Novel C5α-substituted carbapenems enhanceAntimicrobial agents and chemotherapy · 2025
    Article
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  8. Review
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  12. The l,d-Transpeptidase LdtACS infectious diseases · 2022
    Article
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  15. T405, a New Penem, ExhibitsAntimicrobial agents and chemotherapy · 2022
    Article
  16. 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

12 authors at 4 institutions in 1 country.

Rashmi GuptaDivision of Immunity and Pathogenesis, College of Medicine, Burnett School of Biomedical Sciences, University of Central Florida, 6900 Lake Nona Blvd., Orlando, Florida 32827, United States.
Noora M S A Al-KharjiDepartment of Chemistry, Southern Methodist University, Dallas, Texas 75275, United States.
Maha A AlqurafiDepartment of Chemistry, Southern Methodist University, Dallas, Texas 75275, United States.
Thu Q NguyenDepartment of Chemistry, Southern Methodist University, Dallas, Texas 75275, United States.
Weirui ChaiDepartment of Chemistry, Southern Methodist University, Dallas, Texas 75275, United States.
Pojun QuanDepartment of Chemistry, Southern Methodist University, Dallas, Texas 75275, United States.
Riya MalhotraDepartment of Chemistry, Southern Methodist University, Dallas, Texas 75275, United States.
Breven S SimcoxDivision of Immunity and Pathogenesis, College of Medicine, Burnett School of Biomedical Sciences, University of Central Florida, 6900 Lake Nona Blvd., Orlando, Florida 32827, United States.
Phil MortimerDepartment of Chemistry, Mass Spectrometry Facility, The Johns Hopkins University, 3400 N. Charles Street, Baltimore, Maryland 21218, United States.
Leighanne A Brammer BastaChemistry Department, United States Naval Academy, 572M Holloway Road, Annapolis, Maryland 21402, United States.ORCID 0000-0002-4121-5505
Kyle H RohdeDivision of Immunity and Pathogenesis, College of Medicine, Burnett School of Biomedical Sciences, University of Central Florida, 6900 Lake Nona Blvd., Orlando, Florida 32827, United States.ORCID 0000-0001-9838-3238
John D BuynakDepartment of Chemistry, Southern Methodist University, Dallas, Texas 75275, United States.ORCID 0000-0003-1007-791X
Southern Methodist University · USUniversity of Central Florida · USJohns Hopkins University · USUnited States Naval Academy · US

Funding

Optimization of Atypical Antimycobacterial Carbapenem AntibioticsR01AI174599 · NIAID · SOUTHERN METHODIST UNIVERSITY · PI JOHN D BUYNAK, Konstantin V Korotkov · 2023 to 2026
$2.8M
Antibiotics Designed to Counter Resistant 21st Century PathogensR15AI142699 · NIAID · SOUTHERN METHODIST UNIVERSITY · PI BUYNAK, JOHN D · 2019 to 2019
$437k
NIAID NIH HHS R01 AI174599NIAID NIH HHS R15 AI142699
6 · The paper itself

Abstract

Commercial carbapenem antibiotics are being used to treat multidrug resistant (MDR) and extensively drug resistant (XDR) tuberculosis. Like other β-lactams, carbapenems are irreversible inhibitors of serine d,d-transpeptidases involved in peptidoglycan biosynthesis. In addition to d,d-transpeptidases, mycobacteria also utilize nonhomologous cysteine l,d-transpeptidases (Ldts) to cross-link the stem peptides of peptidoglycan, and carbapenems form long-lived acyl-enzymes with Ldts. Commercial carbapenems are C2 modifications of a common scaffold. This study describes the synthesis of a series of atypical, C5α modifications of the carbapenem scaffold, microbiological evaluation against

Indexed as

CarbapenemsPeptidyl TransferasesAnti-Bacterial Agentsbeta-Lactamase InhibitorsProspective StudiesAnti-Bacterial Agentsbeta-Lactamase InhibitorsCarbapenemsPeptidyl Transferasesantimicrobial activitycarbapenemsl,d-transpeptidaseMycobacterium

Identifiers

PMID34191496
PMCPMC8369493
OpenAlexW3177457367

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.