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Previously, we reported that acetaldehyde reacts with adjacent deoxyguanosine residues on oligonucleotides, but not with single deoxyguanosine residues or other deoxyadenosine, deoxycytosine, or thymidine residues, and revealed that it forms reversible intrastrand crosslinks with the dGpdG sequence (GG dimer).<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Here, we show that restriction enzymes that recognize a GG sequence digested acetaldehyde-treated plasmid DNA with low but significant efficiencies, whereas restriction enzymes that recognize other sequences were able to digest such DNA. This suggested that acetaldehyde produced GG dimers in plasmid DNA. Additionally, acetaldehyde-treated oligonucleotides were efficient in preventing digestion by the exonuclease function of T4 DNA polymerase compared to non-treated oligonucleotides, suggesting structural distortions of DNA caused by acetaldehyde-treatment. Neither in vitro DNA synthesis reactions of phi29 DNA polymerase nor in vitro RNA synthesis reactions of T7 RNA polymerase were observed when acetaldehyde-treated plasmid DNA was used, compared to when non-treated plasmid DNA was used, suggesting that acetaldehyde-induced DNA lesions inhibited replication and transcription in DNA metabolism.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Acetaldehyde-induced DNA lesions could affect the relative resistance to endo- and exo-nucleolytic activity and also inhibit in vitro replication and in vitro transcription. Thus, investigating the effects of acetaldehyde-induced DNA lesions may enable a better understanding of the toxicity and carcinogenicity of acetaldehyde.<\/jats:p><\/jats:sec>","DOI":"10.1186\/s41021-019-0142-7","type":"journal-article","created":{"date-parts":[[2020,1,6]],"date-time":"2020-01-06T19:03:05Z","timestamp":1578337385000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["Effects of acetaldehyde-induced DNA lesions on DNA metabolism"],"prefix":"10.1186","volume":"42","author":[{"given":"Haruka","family":"Tsuruta","sequence":"first","affiliation":[]},{"given":"Yuina","family":"Sonohara","sequence":"additional","affiliation":[]},{"given":"Kosuke","family":"Tohashi","sequence":"additional","affiliation":[]},{"given":"Narumi","family":"Aoki Shioi","sequence":"additional","affiliation":[]},{"given":"Shigenori","family":"Iwai","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6391-3411","authenticated-orcid":false,"given":"Isao","family":"Kuraoka","sequence":"additional","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2020,1,6]]},"reference":[{"key":"142_CR1","doi-asserted-by":"publisher","first-page":"1897","DOI":"10.1126\/science.286.5446.1897","volume":"286","author":"T Lindahl","year":"1999","unstructured":"Lindahl T, Wood RD. 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