Evidence map›Paper›PMID 23532840›Full record

ArticleThe Journal of biological chemistry2013

The α-helical structure of prodomains promotes translocation of intrinsically disordered neuropeptide hormones into the endoplasmic reticulum.

Daniela Dirndorfer, Ralf P Seidel, Guy Nimrod, Margit Miesbauer, Nir Ben-Tal, Martin Engelhard, Richard Zimmermann, Konstanze F Winklhofer, Jörg Tatzelt

Abstract read
In one paragraph

Article in The Journal of biological chemistry, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing 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

11 citing papers in PubMed.

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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

9 authors.

Daniela DirndorferNeurobiochemistry, Adolf Butenandt Institute, Ludwig Maximilians University Munich, 80336 Munich, Germany.
Ralf P SeidelMax Planck Institute of Molecular Physiology, 44227 Dortmund, Germany.
Guy NimrodDepartment of Biochemistry, George S. Wise Faculty of Life Sciences, Tel Aviv University, 69978 Tel Aviv, Israel.
Margit MiesbauerNeurobiochemistry, Adolf Butenandt Institute, Ludwig Maximilians University Munich, 80336 Munich, Germany.
Nir Ben-TalDepartment of Biochemistry, George S. Wise Faculty of Life Sciences, Tel Aviv University, 69978 Tel Aviv, Israel.
Martin EngelhardMax Planck Institute of Molecular Physiology, 44227 Dortmund, Germany.
Richard ZimmermannMedical Biochemistry and Molecular Biology, Saarland University Homburg, 66421 Homburg/Saar, Germany.
Konstanze F WinklhoferNeurobiochemistry, Adolf Butenandt Institute, Ludwig Maximilians University Munich, 80336 Munich, Germany; German Center for Neurodegenerative Diseases (DZNE), 80336 Munich, Germany; Munich Cluster for Systems Neurology (SyNergy), 80336 Munich, Germany.
Jörg TatzeltNeurobiochemistry, Adolf Butenandt Institute, Ludwig Maximilians University Munich, 80336 Munich, Germany; German Center for Neurodegenerative Diseases (DZNE), 80336 Munich, Germany. Electronic address: Joerg.Tatzelt@med.uni-muenchen.de.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Different neuropeptide hormones, which are either too small to adopt a stable conformation or are predicted to be intrinsically disordered, are synthesized as larger precursors containing a prodomain in addition to an N-terminal signal peptide. We analyzed the biogenesis of three unstructured neuropeptide hormones and observed that translocation of these precursors into the lumen of the endoplasmic reticulum (ER) is critically dependent on the presence of the prodomain. The hormone domains could be deleted from the precursors without interfering with ER import and secretion, whereas constructs lacking the prodomain remained in the cytosol. Domain-swapping experiments revealed that the activity of the prodomains to promote productive ER import resides in their ability to adopt an α-helical structure. Removal of the prodomain from the precursor did not interfere with co-translational targeting of the nascent chain to the Sec61 translocon but with its subsequent productive translocation into the ER lumen. Our study reveals a novel function of prodomains to enable import of small or intrinsically disordered secretory proteins into the ER based on their ability to adopt an α-helical conformation.

Indexed as

Protein Sorting SignalsAnimalsCell-Free SystemCell LineCircular DichroismDNA, ComplementaryEndopeptidase KEndoplasmic ReticulumEscherichia coliHormonesHumansMiceNeuropeptidesProtein Interaction Domains and MotifsProtein Structure, SecondaryProtein TransportDNA, ComplementaryEndopeptidase KHormonesNeuropeptidesProtein Sorting SignalsRecombinant ProteinsEndoplasmic Reticulum (ER)Intrinsically Disordered ProteinsNeuropeptideNeuroscienceProtein Folding

Identifiers

PMID23532840
PMCPMC3656256

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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.