Evidence map›Paper›PMID 20017478›Full record

ArticleJournal of the American Chemical Society2010

Non-heme iron oxygenases generate natural structural diversity in carbapenem antibiotics.

Micah J Bodner, Ryan M Phelan, Michael F Freeman, Rongfeng Li, Craig A Townsend

Open access · greenAbstract read
In one paragraph

Article in Journal of the American Chemical Society, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.9field-weighted citation impact, top 14% 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

14 citing papers in PubMed, 40 citations in OpenAlex.

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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

5 authors at 1 institution in 1 country.

Micah J BodnerDepartment of Chemistry, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, USA.
Ryan M Phelan
Michael F Freeman
Rongfeng Li
Craig A Townsend
Johns Hopkins University · US

Funding

Biosynthesis of Beta-Lactam AntibioticsR37AI014937 · NIAID · JOHNS HOPKINS UNIVERSITY · PI TOWNSEND, CRAIG ARTHUR · 2004 to 2013
$5.2M
B LACTAM AND AMINO ACID DERIVED ANTIBIOTIC BIOSYNTHESISR01AI014937 · NIAID · JOHNS HOPKINS UNIVERSITY · PI TOWNSEND, CRAIG A · 1985 to 2003
$1.5M
Biosynthesis of Beta-Lactam AntibioticsR56AI014937 · NIAID · JOHNS HOPKINS UNIVERSITY · PI TOWNSEND, CRAIG ARTHUR · 2014 to 2014
$383k
NIAID NIH HHS AI014937NIAID NIH HHS R01 AI014937NIAID NIH HHS R37 AI014937NIAID NIH HHS R56 AI014937
6 · The paper itself

Abstract

Carbapenems are a clinically important antibiotic family. More than 50 naturally occurring carbapenam/ems are known and are distinguished primarily by their C-2/C-6 side chains where many are only differentiated by the oxidation states of these substituents. With a limited palette of variations the carbapenem family comprises a natural combinatorial library, and C-2/C-6 oxidation is associated with increased efficacy. We demonstrate that ThnG and ThnQ encoded by the thienamycin gene cluster in Streptomyces cattleya oxidize the C-2 and C-6 moieties of carbapenems, respectively. ThnQ stereospecifically hydroxylates PS-5 (5) giving N-acetyl thienamycin (2). ThnG catalyzes sequential desaturation and sulfoxidation of PS-5 (5), giving PS-7 (7) and its sulfoxide (9). The enzymes are relatively substrate selective but are proposed to give rise to the oxidative diversity of carbapenems produced by S. cattleya, and orthologues likely function similarly in allied streptomyces. Elucidating the roles of ThnG and ThnQ will focus further investigations of carbapenem antibiotic biosynthesis.

Indexed as

Anti-Bacterial AgentsCarbapenemsHemeOxidation-ReductionOxygenasesStereoisomerismThienamycinsAnti-Bacterial AgentsCarbapenemsHemeiron(II) oxygenaseOxygenasesthienamycinThienamycins

Identifiers

PMID20017478
PMCPMC2821876
OpenAlexW1989928746

What OpenQuestion holds

Textmetadata
LicenceTDM
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.