ArticleNucleic acids research2009
Identification of Apurinic/apyrimidinic endonuclease 1 (APE1) as the endoribonuclease that cleaves c-myc mRNA.
Article in Nucleic acids research, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 74 papers.
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Who cites it
74 citing papers in PubMed, 146 citations in OpenAlex.
- The cooperative regulation of miR-221 by APE1 and AUF1 impacts p27FEBS open bio · 2026Article
- Contrasting roles of APE1 and APE2 in genome maintenance, cancer development, and therapeutic targeting.NAR cancer · 2025Review
- Real-Time, Light-Activated, and Multiplexed Monitoring of Base Excision Repair in Living Cells Using Chimeric d/l-DNA Molecular Beacons.ACS sensors · 2025Article
- Live-cell imaging of human apurinic/apyrimidinic endonuclease 1 in the nucleus and nucleolus using a chaperone@DNA probe.Nucleic acids research · 2024Article
- Back-Up Base Excision DNA Repair in Human Cells Deficient in the Major AP Endonuclease, APE1.International journal of molecular sciences · 2023Article
- AUF1 Recognizes 8-Oxo-Guanosine Embedded in DNA and Stimulates APE1 Endoribonuclease Activity.Antioxidants & redox signaling · 2023Article
- APEX1 Nuclease and Redox Functions are Both Essential for Adult Mouse Hematopoietic Stem and Progenitor Cells.Stem cell reviews and reports · 2023Article
- Revisiting Two Decades of Research Focused on Targeting APE1 for Cancer Therapy: The Pros and Cons.Cells · 2023Review
- Inner Amino Acid Contacts Are Key Factors of Multistage Structural Rearrangements of DNA and Affect Substrate Specificity of Apurinic/Apyrimidinic Endonuclease APE1.International journal of molecular sciences · 2023Article
- Flap Endonuclease 1 Endonucleolytically Processes RNA to Resolve R-Loops through DNA Base Excision Repair.Genes · 2022Article
- Kinetic Features of 3'-5'-Exonuclease Activity of Apurinic/Apyrimidinic Endonuclease Apn2 fromInternational journal of molecular sciences · 2022Article
- 8-Oxoguanine: from oxidative damage to epigenetic and epitranscriptional modification.Experimental & molecular medicine · 2022Review
- Knockout and Inhibition of Ape1: Roles of Ape1 in Base Excision DNA Repair and Modulation of Gene Expression.Antioxidants (Basel, Switzerland) · 2022Article
- Comparative Analysis of Exo- and Endonuclease Activities of APE1-like Enzymes.International journal of molecular sciences · 2022Article
- Common Kinetic Mechanism of Abasic Site Recognition by Structurally Different Apurinic/Apyrimidinic Endonucleases.International journal of molecular sciences · 2021Article
- Molecular Mechanisms Regulating the DNA Repair Protein APE1: A Focus on Its Flexible N-Terminal Tail Domain.International journal of molecular sciences · 2021Review
- Mutational and Kinetic Analysis of APE1 Endoribonuclease Activity.Molecular biology · 2021Article
- Oxidative Modifications of RNA and Its Potential Roles in Biosystem.Frontiers in molecular biosciences · 2021Review
- The Enigma of Substrate Recognition and Catalytic Efficiency of APE1-Like Enzymes.Frontiers in cell and developmental biology · 2021Article
- Altered APE1 activity on abasic ribonucleotides is mediated by changes in the nucleoside sugar pucker.Computational and structural biotechnology journal · 2021Article
14 more citing papers are in PubMed but not listed here.
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Authors and funding
7 authors at 4 institutions in 2 countries.
Funding
Abstract
Endonucleolytic cleavage of the coding region determinant (CRD) of c-myc mRNA appears to play a critical role in regulating c-myc mRNA turnover. Using (32)P-labeled c-myc CRD RNA as substrate, we have purified and identified two endoribonucleases from rat liver polysomes that are capable of cleaving the transcript in vitro. A 17-kDa enzyme was identified as RNase1. Apurinic/apyrimidinic (AP) DNA endonuclease 1 (APE1) was identified as the 35-kDa endoribonuclease that preferentially cleaves in between UA and CA dinucleotides of c-myc CRD RNA. APE1 was further confirmed to be the 35-kDa endoribonuclease because: (i) the endoribonuclease activity of the purified 35-kDa native enzyme was specifically immuno-depleted with APE1 monoclonal antibody, and (ii) recombinant human APE1 generated identical RNA cleavage patterns as the native liver enzyme. Studies using E96A and H309N mutants of APE1 suggest that the endoribonuclease activity for c-myc CRD RNA shares the same active center with the AP-DNA endonuclease activity. Transient knockdown of APE1 in HeLa cells led to increased steady-state level of c-myc mRNA and its half-life. We conclude that the ability to cleave RNA dinucleotides is a previously unidentified function of APE1 and it can regulate c-myc mRNA level possibly via its endoribonuclease activity.
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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.