Evidence map›Paper›PMID 33483498›Full record

ReviewNature communications2021

CRISPR technologies and the search for the PAM-free nuclease.

Daphne Collias, Chase L Beisel

Open access · goldAbstract readReview
In one paragraph

Review in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 156 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
156citing papers in PubMed, 1 pooled it
18.4field-weighted citation impact, top 1% 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

156 citing papers in PubMed, 1 synthesis or guideline pooled it, 292 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Review
  5. Review
  6. Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Fully computational design of PAM-relaxedbioRxiv : the preprint server for biology · 2026
    Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Nanocarrier-mediated CRISPR-Cas delivery: a novel approach against antibiotic-resistant superbugs.Saudi pharmaceutical journal : SPJ : the official publication of the Saudi Pharmaceutical Society · 2026
    Review
  18. Article
  19. Review
  20. Article

96 more citing papers are in PubMed but not listed here.

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

2 authors at 1 institution in 2 countries.

Daphne ColliasDepartment of Chemical & Biomolecular Engineering, North Carolina State University, Raleigh, NC, 27695-7905, USA.ORCID 0000-0002-7878-0612
Chase L BeiselDepartment of Chemical & Biomolecular Engineering, North Carolina State University, Raleigh, NC, 27695-7905, USA. chase.beisel@helmholtz-hiri.de.ORCID 0000-0003-0650-9943
North Carolina State University · US

Funding

Understanding and exploiting the functional diversity of CRISPR-Cas immune systemsR35GM119561 · NIGMS · NORTH CAROLINA STATE UNIVERSITY RALEIGH · PI BEISEL, CHASE LAWRENCE · 2016 to 2020
$1.9M
NIGMS NIH HHS R35 GM119561
6 · The paper itself

Abstract

The ever-expanding set of CRISPR technologies and their programmable RNA-guided nucleases exhibit remarkable flexibility in DNA targeting. However, this flexibility comes with an ever-present constraint: the requirement for a protospacer adjacent motif (PAM) flanking each target. While PAMs play an essential role in self/nonself discrimination by CRISPR-Cas immune systems, this constraint has launched a far-reaching expedition for nucleases with relaxed PAM requirements. Here, we review ongoing efforts toward realizing PAM-free nucleases through natural ortholog mining and protein engineering. We also address potential consequences of fully eliminating PAM recognition and instead propose an alternative nuclease repertoire covering all possible PAM sequences.

Indexed as

CRISPR-Cas SystemsNucleotide MotifsBinding SitesCRISPR-Associated Protein 9Gene EditingModels, GeneticPhylogenyProtein EngineeringRNA, Guide, CRISPR-Cas SystemsCRISPR-Associated Protein 9RNA, Guide, CRISPR-Cas Systems

Identifiers

PMID33483498
PMCPMC7822910
OpenAlexW3123122710

What OpenQuestion 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 OpenQuestion graph.