Evidence map›Paper›PMID 34751190›Full record

ArticleScientific reports2021

Characterization of subcellular localization of eukaryotic clamp loader/unloader and its regulatory mechanism.

Su Hyung Park, Seong-Jung Kim, Kyungjae Myung, Kyoo-Young Lee

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 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 43% 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, 4 citations in OpenAlex.

  1. 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

4 authors at 2 institutions in 1 country.

Su Hyung Park *Center for Genomic Integrity, Institute for Basic Science, Ulsan, 44919, Korea.
Seong-Jung Kim *Center for Genomic Integrity, Institute for Basic Science, Ulsan, 44919, Korea.
Kyungjae MyungCenter for Genomic Integrity, Institute for Basic Science, Ulsan, 44919, Korea.
Kyoo-Young LeeCenter for Genomic Integrity, Institute for Basic Science, Ulsan, 44919, Korea. klee2910@ibs.re.kr.
Institute for Basic Science · KRUlsan National Institute of Science and Technology · KR

Funding

Institute for Basic Science IBS-R022-D1
6 · The paper itself

Abstract

Proliferating cell nuclear antigen (PCNA) plays a critical role as a processivity clamp for eukaryotic DNA polymerases and a binding platform for many DNA replication and repair proteins. The enzymatic activities of PCNA loading and unloading have been studied extensively in vitro. However, the subcellular locations of PCNA loaders, replication complex C (RFC) and CTF18-RFC-like-complex (RLC), and PCNA unloader ATAD5-RLC remain elusive, and the role of their subunits RFC2-5 is unknown. Here we used protein fractionation to determine the subcellular localization of RFC and RLCs and affinity purification to find molecular requirements for the newly defined location. All RFC/RLC proteins were detected in the nuclease-resistant pellet fraction. RFC1 and ATAD5 were not detected in the non-ionic detergent-soluble and nuclease-susceptible chromatin fractions, independent of cell cycle or exogenous DNA damage. We found that small RFC proteins contribute to maintaining protein levels of the RFC/RLCs. RFC1, ATAD5, and RFC4 co-immunoprecipitated with lamina-associated polypeptide 2 (LAP2) α which regulates intranuclear lamin A/C. LAP2α knockout consistently reduced detection of RFC/RLCs in the pellet fraction, while marginally affecting total protein levels. Our findings strongly suggest that PCNA-mediated DNA transaction occurs through regulatory machinery associated with nuclear structures, such as the nuclear matrix.

Indexed as

AnimalsATPases Associated with Diverse Cellular ActivitiesCell CycleCell FractionationCells, CulturedChromatinDNA-Binding ProteinsDNA DamageDNA ReplicationGene Knockout TechniquesHEK293 CellsHeLa CellsHumansMembrane ProteinsMiceNuclear LaminaATAD5 protein, humanATPases Associated with Diverse Cellular ActivitiesChromatinCHTF18 protein, humanDNA-Binding Proteinslamina-associated polypeptide 2Membrane ProteinsNuclear ProteinsPCNA protein, humanProliferating Cell Nuclear AntigenProtein SubunitsReplication Protein CRFC4 protein, humanRFC5 protein, human

Identifiers

PMID34751190
PMCPMC8575788
OpenAlexW3213859992

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

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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.