Evidence map›Paper›PMID 28545389›Full record

ArticleBMC biochemistry2017

Structural insight into the inactivation of Mycobacterium tuberculosis non-classical transpeptidase Ldt

Mario A Bianchet, Ying H Pan, Leighanne A Brammer Basta, Harry Saavedra, Evan P Lloyd, Pankaj Kumar, Rohini Mattoo, Craig A Townsend, Gyanu Lamichhane

Open access · hybridAbstract read
In one paragraph

Article in BMC biochemistry, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
4.5field-weighted citation impact, top 5% 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

30 citing papers in PubMed, 50 citations in OpenAlex.

  1. Outer Membrane-Peptidoglycan Anchoring inJournal of the American Chemical Society · 2026
    Article
  2. Article
  3. Article
  4. Activity Profiling of Mycobacterial L,D-Transpeptidases.bioRxiv : the preprint server for biology · 2026
    Article
  5. Review
  6. Peptidoglycan LD-Transpeptidases.Antibiotics (Basel, Switzerland) · 2025
    Review
  7. Article
  8. The l,d-Transpeptidase LdtACS infectious diseases · 2022
    Article
  9. Article
  10. T405, a New Penem, ExhibitsAntimicrobial agents and chemotherapy · 2022
    Article
  11. Article
  12. Article
  13. Identification of β-Lactams Active againstACS infectious diseases · 2022
    Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

9 authors at 2 institutions in 1 country.

Mario A BianchetDepartment of Neurology, Johns Hopkins University School of Medicine, 725 N. Wolfe Street, Baltimore, MD, 21205, USA. bianchet@jhmi.edu.
Ying H PanDepartment of Neurology, Johns Hopkins University School of Medicine, 725 N. Wolfe Street, Baltimore, MD, 21205, USA.
Leighanne A Brammer BastaChemistry Department, United States Naval Academy, Annapolis, MD, 21402, USA.
Harry SaavedraDepartment of Neurology, Johns Hopkins University School of Medicine, 725 N. Wolfe Street, Baltimore, MD, 21205, USA.
Evan P LloydDepartment of Chemistry, Johns Hopkins University, Baltimore, MD, 21218, USA.
Pankaj KumarDivision of Infectious Diseases, Center for Tuberculosis Research, Taskforce to study Resistance Emergence & Antimicrobial development Technology (TREAT), Johns Hopkins University School of Medicine, Baltimore, MD, 21231, USA.
Rohini MattooDivision of Infectious Diseases, Center for Tuberculosis Research, Taskforce to study Resistance Emergence & Antimicrobial development Technology (TREAT), Johns Hopkins University School of Medicine, Baltimore, MD, 21231, USA.
Craig A TownsendDepartment of Chemistry, Johns Hopkins University, Baltimore, MD, 21218, USA.
Gyanu LamichhaneDivision of Infectious Diseases, Center for Tuberculosis Research, Taskforce to study Resistance Emergence & Antimicrobial development Technology (TREAT), Johns Hopkins University School of Medicine, Baltimore, MD, 21231, USA. lamichhane@jhu.edu.ORCID 0000-0002-2214-0114
Johns Hopkins University · USUnited States Naval Academy · US

Funding

New Drug for Treatment of Chronic Bacterial InfectionDP2OD008459 · OD · JOHNS HOPKINS UNIVERSITY · PI LAMICHHANE, GYANU · 2011 to 2013
$2.6M
Development of an Oral Carbapenem Drug for Treatment of Drug Resistant TBR33AI111739 · NIAID · JOHNS HOPKINS UNIVERSITY · PI LAMICHHANE, GYANU · 2016 to 2018
$1.4M
Development of an Oral Carbapenem Drug for Treatment of Drug Resistant TBR21AI111739 · NIAID · JOHNS HOPKINS UNIVERSITY · PI LAMICHHANE, GYANU · 2014 to 2015
$453k
NIAID NIH HHS R21 AI111739NIAID NIH HHS R33 AI111739NIH HHS DP2 OD008459
6 · The paper itself

Abstract

backgroundThe carbapenem subclass of β-lactams is among the most potent antibiotics available today. Emerging evidence shows that, unlike other subclasses of β-lactams, carbapenems bind to and inhibit non-classical transpeptidases (L,D-transpeptidases) that generate 3 → 3 linkages in bacterial peptidoglycan. The carbapenems biapenem and tebipenem exhibit therapeutically valuable potencies against Mycobacterium tuberculosis (Mtb).

resultsHere, we report the X-ray crystal structures of Mtb L,D-transpeptidase-2 (Ldt

conclusionThe results presented here demonstrate biapenem and tebipenem bind to the outer cavity of Ldt

Indexed as

beta-LactamsCarbapenemsCrystallography, X-RayDrug DesignMycobacterium tuberculosisPeptidyl TransferasesProtein BindingThienamycinsbeta-LactamsbiapenemCarbapenemsPeptidyl TransferasestebipenemThienamycinsBiapenemCarbapenemEnzyme inactivationL,D-transpeptidaseMycobacterium tuberculosisPeptidoglycanTebipenem

Identifiers

PMID28545389
PMCPMC5445500
OpenAlexW2617640619

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.