Evidence map›Paper›PMID 34197804›Full record

ArticleBiophysical journal2021

The regulation mechanism of the C-terminus of RecA proteins during DNA strand-exchange process.

Hsiu-Fang Fan, Shu Su

Open access · bronzeAbstract read
In one paragraph

Article in Biophysical journal, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.3field-weighted citation impact, top 44% 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

4 citing papers in PubMed, 5 citations in OpenAlex.

  1. Article
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  3. Article
  4. Review
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 2 institutions in 1 country.

Hsiu-Fang FanInstitute of Medical Science and Technology, Kaohsiung, Taiwan; Department of Chemistry, Kaohsiung, Taiwan; Aerosol Science Research Center, National Sun Yat-sen University, Kaohsiung, Taiwan. Electronic address: bendyfan@imst.nsysu.edu.tw.
Shu SuDepartment of Life Sciences and Institute of Genome Sciences, National Yang-Ming University, Taipei, Taiwan.
National Sun Yat-sen University · TWNational Yang Ming Chiao Tung University · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The C-terminus of Escherichia coli RecA protein can affect the DNA binding affinity, interact with accessory proteins, and regulate the RecA activity. A substantial upward shift in the pH-reaction profile of RecA-mediated DNA strand-exchange reactions was observed for C-terminal-truncated E. coli ΔC17 RecA, Deinococcus radiodurans RecA, and Deinococcus ficus RecA. Here, the process of RecA-mediated strand exchange from the beginning to the end was investigated with florescence resonance energy transfer and tethered particle motion experiments to determine the detailed regulation mechanism. RecA proteins with a shorter C-terminus possess more stable nuclei, higher DNA binding affinities, and lower protonation requirements for the formation of nucleoprotein filaments. Moreover, more stable synaptic complexes in the homologous sequence searching process were also observed for RecA proteins with a shorter C-terminus. Our results suggest that the C-terminus of RecA proteins regulates not only the formation of RecA nucleoprotein filaments but also the entrance of secondary DNA into RecA nucleoprotein filaments.

Indexed as

Escherichia coliRec A RecombinasesAdenosine TriphosphateDeinococcusDNADNA, Single-StrandedAdenosine TriphosphateDNADNA, Single-StrandedRec A Recombinases

Identifiers

PMID34197804
PMCPMC8390967
OpenAlexW3176386941

What OpenQuestion holds

Textmetadata
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.