Evidence map›Paper›PMID 33051690›Full record

ArticleNucleic acids research2020

Systematic use of synthetic 5'-UTR RNA structures to tune protein translation improves yield and quality of complex proteins in mammalian cell factories.

Peter Eisenhut, Aman Mebrahtu, Mona Moradi Barzadd, Niklas Thalén, Gerald Klanert, Marcus Weinguny, Anna Sandegren, Chao Su, Diane Hatton, Nicole Borth and 1 more

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.6field-weighted citation impact, top 16% 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

21 citing papers in PubMed, 41 citations in OpenAlex.

  1. Article
  2. TheGenes · 2026
    Article
  3. From Structure to Function of Promoters and 5'UTRs in Maize.International journal of molecular sciences · 2026
    Review
  4. Article
  5. Deciphering the determinants of recombinant protein expression across the human secretome.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
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  7. Review
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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

11 authors at 4 institutions in 3 countries.

Peter EisenhutACIB Austrian Centre of Industrial Biotechnology, Krenngasse 37, 8010 Graz, Austria.
Aman MebrahtuKTH Royal Institute of Technology, Department of Protein Science, 10691 Stockholm, Sweden.
Mona Moradi BarzaddKTH Royal Institute of Technology, Department of Protein Science, 10691 Stockholm, Sweden.
Niklas ThalénKTH Royal Institute of Technology, Department of Protein Science, 10691 Stockholm, Sweden.
Gerald KlanertACIB Austrian Centre of Industrial Biotechnology, Krenngasse 37, 8010 Graz, Austria.
Marcus WeingunyACIB Austrian Centre of Industrial Biotechnology, Krenngasse 37, 8010 Graz, Austria.
Anna SandegrenAffibody Medical AB, Scheeles väg 2, SE-171 65 Solna, Sweden.
Chao SuSOBI AB, Tomtebodavägen 23A, Stockholm, Sweden.
Diane HattonAstraZeneca, Biopharmaceutical Development, Milstein Building, Granta Park, Cambridge CB21 6GH, UK.
Nicole BorthACIB Austrian Centre of Industrial Biotechnology, Krenngasse 37, 8010 Graz, Austria.
Johan RockbergKTH Royal Institute of Technology, Department of Protein Science, 10691 Stockholm, Sweden.
Austrian Centre of Industrial Biotechnology (Austria) · ATKTH Royal Institute of Technology · SEAffibody (Sweden) · SEAstraZeneca (United Kingdom) · GB

Funding

Austrian Science Fund FWF W 1224
6 · The paper itself

Abstract

Predictably regulating protein expression levels to improve recombinant protein production has become an important tool, but is still rarely applied to engineer mammalian cells. We therefore sought to set-up an easy-to-implement toolbox to facilitate fast and reliable regulation of protein expression in mammalian cells by introducing defined RNA hairpins, termed 'regulation elements (RgE)', in the 5'-untranslated region (UTR) to impact translation efficiency. RgEs varying in thermodynamic stability, GC-content and position were added to the 5'-UTR of a fluorescent reporter gene. Predictable translation dosage over two orders of magnitude in mammalian cell lines of hamster and human origin was confirmed by flow cytometry. Tuning heavy chain expression of an IgG with the RgEs to various levels eventually resulted in up to 3.5-fold increased titers and fewer IgG aggregates and fragments in CHO cells. Co-expression of a therapeutic Arylsulfatase-A with RgE-tuned levels of the required helper factor SUMF1 demonstrated that the maximum specific sulfatase activity was already attained at lower SUMF1 expression levels, while specific production rates steadily decreased with increasing helper expression. In summary, we show that defined 5'-UTR RNA-structures represent a valid tool to systematically tune protein expression levels in mammalian cells and eventually help to optimize recombinant protein expression.

Indexed as

5' Untranslated RegionsAnimalsCerebroside-SulfataseCHO CellsCricetulusGene ExpressionGene Expression RegulationGenetic VectorsHEK293 CellsHumansImmunoglobulin GInverted Repeat SequencesNucleic Acid ConformationOxidoreductases Acting on Sulfur Group DonorsProtein BiosynthesisProtein Engineering5' Untranslated RegionsCerebroside-SulfataseImmunoglobulin GOxidoreductases Acting on Sulfur Group DonorsRecombinant ProteinsSUMF1 protein, human

Identifiers

PMID33051690
PMCPMC7672427
OpenAlexW3092177332

What Socratic holds

Textmetadata
LicenceCC BY
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 Socratic graph.