Evidence map›Paper›PMID 30559329›Full record

ArticleThe EMBO journal2019

A selective ER-phagy exerts procollagen quality control via a Calnexin-FAM134B complex.

Alison Forrester, Chiara De Leonibus, Paolo Grumati, Elisa Fasana, Marilina Piemontese, Leopoldo Staiano, Ilaria Fregno, Andrea Raimondi, Alessandro Marazza, Gemma Bruno and 9 more

Open access · hybridAbstract read
In one paragraph

Article in The EMBO journal, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 172 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
172citing papers in PubMed, 2 pooled it
14.9field-weighted citation impact, top 1% 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

172 citing papers in PubMed, 2 syntheses or guidelines pooled it, 248 citations in OpenAlex.

  1. Pooled it
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  10. [Nan fang yi ke da xue xue bao = Journal of Southern Medical University · 2026
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  18. FAM134B controls collagen I dynamics in hepatic stellate cell-driven fibrosis.American journal of physiology. Gastrointestinal and liver physiology · 2026
    Article
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  20. Article

112 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

19 authors at 7 institutions in 3 countries.

Alison ForresterTelethon Institute of Genetics and Medicine (TIGEM), Pozzuoli, Italy.
Chiara De LeonibusTelethon Institute of Genetics and Medicine (TIGEM), Pozzuoli, Italy.
Paolo GrumatiInstitute of Biochemistry II, Goethe University Frankfurt - Medical Faculty, University Hospital, Frankfurt am Main, Germany.
Elisa FasanaFaculty of Biomedical Sciences, Institute for Research in Biomedicine, Università della Svizzera italiana (USI), Bellinzona, Switzerland.
Marilina PiemonteseTelethon Institute of Genetics and Medicine (TIGEM), Pozzuoli, Italy.
Leopoldo StaianoTelethon Institute of Genetics and Medicine (TIGEM), Pozzuoli, Italy.
Ilaria FregnoFaculty of Biomedical Sciences, Institute for Research in Biomedicine, Università della Svizzera italiana (USI), Bellinzona, Switzerland.
Andrea RaimondiExperimental Imaging Center, San Raffaele Scientific Institute, Milan, Italy.
Alessandro MarazzaFaculty of Biomedical Sciences, Institute for Research in Biomedicine, Università della Svizzera italiana (USI), Bellinzona, Switzerland.
Gemma BrunoTelethon Institute of Genetics and Medicine (TIGEM), Pozzuoli, Italy.
Maria IavazzoTelethon Institute of Genetics and Medicine (TIGEM), Pozzuoli, Italy.
Daniela IntartagliaTelethon Institute of Genetics and Medicine (TIGEM), Pozzuoli, Italy.
Marta SeczynskaInstitute of Biochemistry II, Goethe University Frankfurt - Medical Faculty, University Hospital, Frankfurt am Main, Germany.
Eelco van AnkenDivision of Genetics and Cell Biology, San Raffaele Scientific Institute, Ospedale San Raffaele, Milan, Italy.
Ivan ConteTelethon Institute of Genetics and Medicine (TIGEM), Pozzuoli, Italy.
Maria Antonietta De MatteisTelethon Institute of Genetics and Medicine (TIGEM), Pozzuoli, Italy.
Ivan DikicInstitute of Biochemistry II, Goethe University Frankfurt - Medical Faculty, University Hospital, Frankfurt am Main, Germany dikic@biochem2.uni-frankfurt.de maurizio.molinari@irb.usi.ch settembre@tigem.it.ORCID 0000-0001-8156-9511
Maurizio MolinariFaculty of Biomedical Sciences, Institute for Research in Biomedicine, Università della Svizzera italiana (USI), Bellinzona, Switzerland dikic@biochem2.uni-frankfurt.de maurizio.molinari@irb.usi.ch settembre@tigem.it.ORCID 0000-0002-7636-5829
Carmine SettembreTelethon Institute of Genetics and Medicine (TIGEM), Pozzuoli, Italy dikic@biochem2.uni-frankfurt.de maurizio.molinari@irb.usi.ch settembre@tigem.it.ORCID 0000-0002-5829-8589
Telethon Institute Of Genetics And Medicine · ITGoethe University Frankfurt · DEÉcole Polytechnique Fédérale de Lausanne · CHIRCCS Ospedale San Raffaele · ITSan Raffaele University of Rome · ITUniversità della Svizzera italiana · CHUniversity of Bern · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Autophagy is a cytosolic quality control process that recognizes substrates through receptor-mediated mechanisms. Procollagens, the most abundant gene products in Metazoa, are synthesized in the endoplasmic reticulum (ER), and a fraction that fails to attain the native structure is cleared by autophagy. However, how autophagy selectively recognizes misfolded procollagens in the ER lumen is still unknown. We performed siRNA interference, CRISPR-Cas9 or knockout-mediated gene deletion of candidate autophagy and ER proteins in collagen producing cells. We found that the ER-resident lectin chaperone Calnexin (CANX) and the ER-phagy receptor FAM134B are required for autophagy-mediated quality control of endogenous procollagens. Mechanistically, CANX acts as co-receptor that recognizes ER luminal misfolded procollagens and interacts with the ER-phagy receptor FAM134B. In turn, FAM134B binds the autophagosome membrane-associated protein LC3 and delivers a portion of ER containing both CANX and procollagen to the lysosome for degradation. Thus, a crosstalk between the ER quality control machinery and the autophagy pathway selectively disposes of proteasome-resistant misfolded clients from the ER.

Indexed as

AnimalsAutophagyCalnexinCell LineEndoplasmic ReticulumGene Knockdown TechniquesHeLa CellsHumansIntracellular Signaling Peptides and ProteinsMembrane ProteinsMiceMicrotubule-Associated ProteinsOryziasProcollagenProtein FoldingCalnexinCANX protein, humanIntracellular Signaling Peptides and ProteinsMAP1LC3A protein, humanMembrane ProteinsMicrotubule-Associated ProteinsProcollagenRETREG1 protein, humanautophagyCalnexincollagenendoplasmic reticulumFAM134B

Identifiers

PMID30559329
PMCPMC6331724
OpenAlexW2903915228

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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.