Evidence map›Paper›PMID 29769555›Full record

ArticleScientific reports2018

Cattle with a precise, zygote-mediated deletion safely eliminate the major milk allergen beta-lactoglobulin.

Jingwei Wei, Stefan Wagner, Paul Maclean, Brigid Brophy, Sally Cole, Grant Smolenski, Dan F Carlson, Scott C Fahrenkrug, David N Wells, Götz Laible

Abstract read
In one paragraph

Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 1 pooled it
–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

29 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Milk Antiviral Proteins and Derived Peptides against Zoonoses.International journal of molecular sciences · 2024
    Review
  10. Outlook on genome editing application to cattle.Journal of veterinary science · 2024
    Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. A deletion at the polled PScientific reports · 2022
    Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. 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

10 authors.

Jingwei WeiAgResearch, Ruakura Research Centre, Hamilton, 3240, New Zealand.
Stefan WagnerAgResearch, Ruakura Research Centre, Hamilton, 3240, New Zealand.
Paul MacleanAgResearch, Ruakura Research Centre, Hamilton, 3240, New Zealand.
Brigid BrophyAgResearch, Ruakura Research Centre, Hamilton, 3240, New Zealand.
Sally ColeAgResearch, Ruakura Research Centre, Hamilton, 3240, New Zealand.
Grant SmolenskiAgResearch, Ruakura Research Centre, Hamilton, 3240, New Zealand.
Dan F CarlsonRecombinetics, St. Paul, MN, United States.
Scott C FahrenkrugRecombinetics, St. Paul, MN, United States.
David N WellsAgResearch, Ruakura Research Centre, Hamilton, 3240, New Zealand.
Götz LaibleAgResearch, Ruakura Research Centre, Hamilton, 3240, New Zealand. goetz.laible@agresearch.co.nz.ORCID 0000-0003-1048-2819

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We applied precise  zygote-mediated genome editing to eliminate beta-lactoglobulin (BLG), a major allergen in cows' milk. To efficiently generate LGB knockout cows, biopsied embryos were screened to transfer only appropriately modified embryos. Transfer of 13 pre-selected embryos into surrogate cows resulted in the birth of three calves, one dying shortly after birth. Deep sequencing results confirmed conversion of the genotype from wild type to the edited nine bp deletion by more than 97% in the two male calves. The third calf, a healthy female, had in addition to the expected nine bp deletion (81%), alleles with an in frame 21 bp deletion (<17%) at the target site. While her milk was free of any mature BLG, we detected low levels of a BLG variant derived from the minor deletion allele. This confirmed that the nine bp deletion genotype completely knocks out production of BLG. In addition, we showed that the LGB knockout animals are free of any TALEN-mediated off-target mutations or vector integration events using an unbiased whole genome analysis. Our study demonstrates the feasibility of generating precisely biallelically edited cattle by zygote-mediated editing for the safe production of hypoallergenic milk.

Indexed as

Gene EditingAllergensAnimalsAnimals, Genetically ModifiedCattleFemaleLactoglobulinsMaleMilkMilk HypersensitivitySequence DeletionAllergensLactoglobulins

Identifiers

PMID29769555
PMCPMC5955954

What OpenQuestion holds

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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.