Evidence map›Paper›PMID 31285605›Full record

ArticleNature structural & molecular biology2019

Structure of the eukaryotic protein O-mannosyltransferase Pmt1-Pmt2 complex.

Lin Bai, Amanda Kovach, Qinglong You, Alanna Kenny, Huilin Li

Abstract readVideo-Audio Media
In one paragraph

Article in Nature structural & molecular biology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing 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

31 citing papers in PubMed, 31 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Review
  9. Structural glycobiology - from enzymes to organelles.Biochemical Society transactions · 2025
    Review
  10. Article
  11. Three-component systems represent a common pathway for extracytoplasmic addition of pentofuranose sugars into bacterial glycans.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  12. Article
  13. Review
  14. Structure of the priming arabinosyltransferase AftA required for AG biosynthesis ofProceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  15. The SHDRA syndrome-associated geneProceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  16. Article
  17. Review
  18. Article
  19. Review
  20. Review
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.

Lin BaiStructural Biology Program, Van Andel Research Institute, Grand Rapids, MI, USA.ORCID http://orcid.org/0000-0002-7535-7819
Amanda KovachStructural Biology Program, Van Andel Research Institute, Grand Rapids, MI, USA.
Qinglong YouStructural Biology Program, Van Andel Research Institute, Grand Rapids, MI, USA.
Alanna KennyStructural Biology Program, Van Andel Research Institute, Grand Rapids, MI, USA.
Huilin LiStructural Biology Program, Van Andel Research Institute, Grand Rapids, MI, USA. Huilin.Li@vai.org.ORCID http://orcid.org/0000-0001-8085-8928
Van Andel Institute · US

Funding

The structure and function of eukaryotic protein glycosylation enzymesR01CA231466 · NCI · VAN ANDEL RESEARCH INSTITUTE · PI Huilin Li · 2018 to 2026
$4.0M
NCI NIH HHS R01 CA231466
6 · The paper itself

Abstract

In eukaryotes, a nascent peptide entering the endoplasmic reticulum (ER) is scanned by two Sec61 translocon-associated large membrane machines for protein N-glycosylation and protein O-mannosylation, respectively. While the structure of the eight-protein oligosaccharyltransferase complex has been determined recently, the structures of mannosyltransferases of the PMT family, which are an integral part of ER protein homeostasis, are still unknown. Here we report cryo-EM structures of the Saccharomyces cerevisiae Pmt1-Pmt2 complex bound to a donor and an acceptor peptide at 3.2-Å resolution, showing that each subunit contains 11 transmembrane helices and a lumenal β-trefoil fold termed the MIR domain. The structures reveal the substrate recognition model and confirm an inverting mannosyl-transferring reaction mechanism by the enzyme complex. Furthermore, we found that the transmembrane domains of Pmt1 and Pmt2 share a structural fold with the catalytic subunits of oligosaccharyltransferases, confirming a previously proposed evolutionary relationship between protein O-mannosylation and protein N-glycosylation.

Indexed as

Cryoelectron MicroscopyGlycosylationHumansImage Processing, Computer-AssistedMannoseMannosyltransferasesModels, MolecularMultienzyme ComplexesProtein ConformationProtein DomainsProtein FoldingProtein Processing, Post-TranslationalRecombinant ProteinsSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsSpecies SpecificityMannoseMannosyltransferasesMultienzyme Complexesprotein O-mannosyltransferaseRecombinant ProteinsSaccharomyces cerevisiae Proteins

Identifiers

PMID31285605
PMCPMC6684406
OpenAlexW2959748371

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.