Evidence map›Paper›PMID 28934476›Full record

ArticleNucleic acids research2017

Crystal structure of an engineered, HIV-specific recombinase for removal of integrated proviral DNA.

Gretchen Meinke, Janet Karpinski, Frank Buchholz, Andrew Bohm

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
0.4field-weighted citation impact, top 37% 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

12 citing papers in PubMed, 12 citations in OpenAlex.

  1. Thermodynamics of Indirect Readout in Cre-bioRxiv : the preprint server for biology · 2026
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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

4 authors at 3 institutions in 2 countries.

Gretchen MeinkeDepartment of Developmental, Molecular and Chemical Biology, Tufts University School of Medicine, Boston, MA 02111, USA.
Janet KarpinskiMedical Systems Biology, UCC, Medical Faculty Carl Gustav Carus, TU Dresden, 01307 Dresden, Germany.
Frank BuchholzMedical Systems Biology, UCC, Medical Faculty Carl Gustav Carus, TU Dresden, 01307 Dresden, Germany.
Andrew BohmDepartment of Developmental, Molecular and Chemical Biology, Tufts University School of Medicine, Boston, MA 02111, USA.
Tufts University · USNational Center for Tumor Diseases · DEUniversity Hospital Carl Gustav Carus · DE

Funding

A structure-based approach to accelerated recombinase engineeringR01AI150499 · NIAID · TUFTS UNIVERSITY BOSTON · PI BOHM, ALEX ANDREW · 2020 to 2021
$495k
A structure-based approach to accelerated recombinase engineeringR01GM126149 · NIGMS · TUFTS UNIVERSITY BOSTON · PI BOHM, ALEX ANDREW · 2018 to 2019
$495k
NIAID NIH HHS R01 AI150499NIGMS NIH HHS R01 GM126149
6 · The paper itself

Abstract

As part of the HIV infection cycle, viral DNA inserts into the genome of host cells such that the integrated DNA encoding the viral proteins is flanked by long terminal repeat (LTR) regions from the retrovirus. In an effort to develop novel genome editing techniques that safely excise HIV provirus from cells, Tre, an engineered version of Cre recombinase, was designed to target a 34-bp sequence within the HIV-1 LTR (loxLTR). The sequence targeted by Tre lacks the symmetry present in loxP, the natural DNA substrate for Cre. We report here the crystal structure of a catalytically inactive (Y324F) mutant of this engineered Tre recombinase in complex with the loxLTR DNA substrate. We also report that 17 of the 19 amino acid changes relative to Cre contribute to the altered specificity, even though many of these residues do not contact the DNA directly. We hypothesize that some mutations increase the flexibility of the Cre tetramer and that this, along with flexibility in the DNA, enable the engineered enzyme and DNA substrate to adopt complementary conformations.

Indexed as

HIV Long Terminal RepeatCatalytic DomainCrystallography, X-RayDNA, ViralHIV-1IntegrasesModels, MolecularMutationNucleic Acid ConformationProtein ConformationProtein EngineeringRecombinant ProteinsCre recombinaseDNA, ViralIntegrasesRecombinant Proteins

Identifiers

PMID28934476
PMCPMC5766204
OpenAlexW2735823573

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.