Evidence map›Paper›PMID 40841798›Full record

ArticleNature communications2025

Visualizing acyl carrier protein interactions within a crosslinked type I polyketide synthase.

Ziran Jiang, Graham W Heberlig, Jeffrey A Chen, Jennifer Huynh, James J La Clair, Michael D Burkart

Abstract read
In one paragraph

Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
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

2 citing papers in PubMed.

  1. Article
  2. 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

6 authors.

Ziran Jiang *Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA, USA.
Graham W Heberlig *Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA, USA.ORCID http://orcid.org/0000-0001-8439-274X
Jeffrey A ChenDepartment of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA, USA.ORCID http://orcid.org/0000-0002-3091-7608
Jennifer HuynhDepartment of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA, USA.ORCID http://orcid.org/0009-0006-9624-4975
James J La ClairDepartment of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA, USA.ORCID http://orcid.org/0000-0001-6500-4107
Michael D BurkartDepartment of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA, USA. mburkart@ucsd.edu.ORCID http://orcid.org/0000-0002-4472-2254

Funding

Protein-Protein Interactions in Natural Product BiosynthesisR01GM095970 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI BURKART, MICHAEL D. · 2012 to 2025
$5.9M
UCSD Biomedical Scientist Career Development Program in GlycoscienceK12HL141956 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI ESKO, JEFFREY D, GODULA, KAMIL · 2018 to 2022
$5.3M
NHLBI NIH HHS K12 HL141956NIGMS NIH HHS R01 GM095970U.S. Department of Health & Human Services | NIH | National Heart, Lung, and Blood Institute (NHLBI) K12HL141956U.S. Department of Health & Human Services | NIH | National Institute of General Medical Sciences (NIGMS) R01GM095970
6 · The paper itself

Abstract

Using a combination of dual covalent crosslinking and cryo-EM analyses, we elucidate the structure of mycocerosic acid synthase from Mycobacterium tuberculosis trapped in two distinct catalytic states during its iterative cycle. These structures reveal domain architecture of the acyl carrier protein mediating condensation and dehydration through dual site-selective crosslinking of the acyl carrier protein with the ketosynthase and dehydratase domains. Map density was sufficient to visualize full domain architecture with active site-bound probes and elucidate key interactions of four distinct crosslinked species. Here, iterative vectorial polyketide biosynthesis arises through an overall twisting and tilting architecture, enabling positioning and entry of the cognate substrate at each enzymatic domain. These structures present valuable details for future therapeutic design against mycocerosic acid biosynthesis in M. tuberculosis.

Indexed as

Acyl Carrier ProteinBacterial ProteinsMycobacterium tuberculosisPolyketide SynthasesCatalytic DomainCross-Linking ReagentsCryoelectron MicroscopyModels, MolecularAcyl Carrier ProteinBacterial ProteinsCross-Linking ReagentsPolyketide Synthases

Identifiers

PMID40841798
PMCPMC12370991

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Registered trials

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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.