Evidence map›Paper›PMID 31665813›Full record

ArticleThe FEBS journal2020

The crystal structure of the naturally split gp41-1 intein guides the engineering of orthogonal split inteins from cis-splicing inteins.

Hannes M Beyer, Kornelia M Mikula, Mi Li, Alexander Wlodawer, Hideo Iwaï

Abstract read
In one paragraph

Article in The FEBS journal, 2020. 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
–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

14 citing papers in PubMed.

  1. Article
  2. A Unique THN Motif Is Critical for Enabling Efficient C-Terminal Traceless Cleavage.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Article
  3. Review
  4. Article
  5. Rational Design of a Circularly Permuted Flavin-Based Fluorescent Protein.Chembiochem : a European journal of chemical biology · 2024
    Article
  6. Article
  7. Article
  8. Article
  9. Inteins as Drug Targets and Therapeutic Tools.Frontiers in molecular biosciences · 2022
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. 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

5 authors.

Hannes M BeyerResearch Program in Structural Biology and Biophysics, Helsinki Life Science Institute-Institute of Biotechnology, University of Helsinki, Finland.
Kornelia M MikulaResearch Program in Structural Biology and Biophysics, Helsinki Life Science Institute-Institute of Biotechnology, University of Helsinki, Finland.
Mi LiMacromolecular Crystallography Laboratory, National Cancer Institute, Frederick, MD, USA.ORCID 0000-0002-9304-4146
Alexander WlodawerMacromolecular Crystallography Laboratory, National Cancer Institute, Frederick, MD, USA.ORCID 0000-0002-5510-9703
Hideo IwaïResearch Program in Structural Biology and Biophysics, Helsinki Life Science Institute-Institute of Biotechnology, University of Helsinki, Finland.ORCID 0000-0001-7376-5264

Funding

Protein StructureZIABC010348 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI WLODAWER, ALEXANDER · 2009 to 2025
$27.5M
CCR NIH HHS HHSN261200800001CIntramural NIH HHS ZIA BC010348NCI NIH HHS HHSN261200800001E
6 · The paper itself

Abstract

Protein trans-splicing catalyzed by split inteins has increasingly become useful as a protein engineering tool. We solved the 1.0 Å-resolution crystal structure of a fused variant from the naturally split gp41-1 intein, previously identified from environmental metagenomic sequence data. The structure of the 125-residue gp41-1 intein revealed a compact pseudo-C2-symmetry commonly found in the Hedgehog/Intein superfamily with extensive charge-charge interactions between the split N- and C-terminal intein fragments that are common among naturally occurring split inteins. We successfully created orthogonal split inteins by engineering a similar charge network into the same region of a cis-splicing intein. This strategy could be applicable for creating novel natural-like split inteins from other, more prevalent cis-splicing inteins. DATABASE: Structural data are available in the RCSB Protein Data Bank under the accession number 6QAZ.

Indexed as

InteinsProtein EngineeringProtein SplicingCrystallography, X-RayModels, MolecularStereoisomerismcrystal structuregp41-1 inteinorthogonal split inteinprotein engineeringprotein splicing

Identifiers

PMID31665813
PMCPMC7190452

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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.