Mysterious and fascinating: DNA polymerase ɩ remains enigmatic 20 years after its discovery.

DNA Repair (Amst)

Laboratory of Genomic Integrity, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892-3371, USA. Electronic address:

Published: September 2020

With the publication of the first paper describing the biochemical properties of DNA polymerase iota (polɩ), the question immediately arose as to why cells harbor such a low-fidelity enzyme which often violates the Watson-Crick base pairing rules? Yet 20 years after its discovery, the cellular function of polɩ remains unknown. Here, we provide a graphical review of the unique biochemical properties of polɩ and speculate about the cellular pathways in which enigmatic polɩ may participate.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7586464PMC
http://dx.doi.org/10.1016/j.dnarep.2020.102914DOI Listing

Publication Analysis

Top Keywords

dna polymerase
8
years discovery
8
biochemical properties
8
mysterious fascinating
4
fascinating dna
4
polymerase remains
4
remains enigmatic
4
enigmatic years
4
discovery publication
4
publication paper
4

Similar Publications

Genomic analysis and replication kinetics of the closely related EHV-1 neuropathogenic 21P40 and abortigenic 97P70 strains.

Vet Res

January 2025

Department of Translational Physiology, Infectiology and Public Health, Faculty of Veterinary Medicine, Ghent University, 9820, Merelbeke, Belgium.

Varicellovirus equidalpha 1, formerly known as Equid alphaherpesvirus 1 (EHV-1), is highly prevalent and can lead to various problems, such as respiratory problems, abortion, neonatal foal death, and neurological disorders. The latter is known as equine herpes myeloencephalopathy (EHM). Cases of EHM have significantly increased since the beginning of the twenty-first century.

View Article and Find Full Text PDF

Engineering a DNA polymerase for modifying large RNA at specific positions.

Nat Chem

January 2025

State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China.

The synthesis of large RNA with precise modifications at specific positions is in high demand for both basic research and therapeutic applications, but efficient methods are limited. Engineered DNA polymerases have recently emerged as attractive tools for RNA labelling, offering distinct advantages over conventional RNA polymerases. Here, through semi-rational designs, we engineered a DNA polymerase variant and used it to precisely incorporate a diverse range of modifications, including base modifications, 2'-ribose modifications and backbone modifications, into desired positions within RNA.

View Article and Find Full Text PDF

Cell-free systems are powerful synthetic biology technologies that can recapitulate gene expression and sensing without the complications of living cells. Cell-free systems can perform more advanced functions when genetic circuits are incorporated. Here we expand cell-free biosensing by engineering a highly specific isothermal amplification circuit called polymerase strand recycling (PSR), which leverages T7 RNA polymerase off-target transcription to recycle nucleic acid inputs within DNA strand displacement circuits.

View Article and Find Full Text PDF

[Molecular authentication of calcined oyster (Ostrea gigas) and its processed products].

Zhongguo Zhong Yao Za Zhi

December 2024

Experimental Research Center, China Academy of Chinese Medical Sciences Beijing 100700, China.

Calcined oyster is a commonly used shellfish traditional Chinese medicine in clinical practice in China. During the processing of oysters, their microscopic characteristics are destroyed, and open-fire calcination can damage the DNA of oysters, making it difficult to identify the primary source. The establishment of a specific polymerase chain reaction(PCR) method for the identification of calcined oysters can provide a guarantee for the safety and clinical efficacy of the medicine and its processed products.

View Article and Find Full Text PDF

With the development of molecular pharmacognosy, the advantages of DNA molecular markers in the identification of original plants of Chinese medicinal materials are becoming increasingly significant. To compensate for the limitations of existing markers in the quality supervision of Chinese medicinal materials, our team has independently designed a new molecular marker named DNA signature sequence(DSS). This marker is a nucleotide sequence that only appears in a specific taxonomic unit, with a length of 40 bp and high identification accuracy.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!