@ARTICLE{Ivanov1989105,
author={Ivanov, E.L. and Kovaltzova, S.V. and Korolev, V.G.},
title={Saccharomyces cerevisiae mutants with enhanced induced mutation and altered mitotic gene conversion},
journal={Mutation Research - Fundamental and Molecular Mechanisms of Mutagenesis},
year={1989},
volume={213},
number={2},
pages={105-115},
doi={10.1016/0027-5107(89)90141-3},
note={cited By 16},
url={https://www.scopus.com/inward/record.uri?eid=2-s2.0-0024359631&doi=10.1016%2f0027-5107%2889%2990141-3&partnerID=40&md5=f19c7ea2b5e5891bb6ffaf130ace757b},
affiliation={B.P. Konstantinov Leningrad Institute of Nuclear Physics, Academy of Sciences, the U.S.S.R., 188350 Gatchina, Russian Federation},
abstract={We have developed a method to isolate yeast (Saccharomyces cerevisiae) mutants with enhanced induced mutagenesis based on nitrous acid-induced reversion of the ade2-42 allele. Six mutants have been isolated and designated him (high induced mutagenesis), and 4 of them were studied in more detail. The him mutants displayed enhanced reversion of the ade2-42 allele, either spontaneous or induced by nitrous acid, UV light, and the base analog 6-N-hydroxylaminopurine, but not by γ-irradiation. It is worth noting that the him mutants turned out not to be sensitive to the lethal effects of the mutagens used. The enhancement in mutation induced by nitrous acid, UV light, and 6-N-hydroxylaminopurine has been confirmed in a forward-mutation assay (induction of mutations in the ADE1, ADE2 genes). The latter agent revealed the most apparent differences between the him mutants and the wild-type strain and was, therefore, chosen for the genetic analysis of mutants. him mutations analyzed behaved as a single Mendelian trait; complementation tests indicated 3 complementation groups (HIM1, HIM2, and HIm3), each containing 1 mutant allele. Uracil-DNA glycosylase activity was determined in crude cell extracts, and no significant differences between the wild-type and him strains detected. Spontaneous mitotic gene conversion at the ADE2 locus is altered in him1 strains, either increased or decreased, depending on the particular heteroallelic combination. Genetic evidence strongly suggests him mutations to be involved in a process of mismatch correction of molecular heteroduplexes. © 1989.},
author_keywords={Enhanced mutagenesis;  Mitotic gene conversion;  S. cerevisiae},
correspondence_address1={Ivanov, E.L.; B.P. Konstantinov Leningrad Institute of Nuclear Physics, Academy of Sciences, the U.S.S.R., 188350 Gatchina, Russian Federation},
issn={00275107},
coden={MRFME},
pubmed_id={2668746},
language={English},
abbrev_source_title={Mutat. Res. Fundam. Mol. Mech. Mutagen.},
document_type={Article},
source={Scopus},
}

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Konstantinov Leningrad Institute of Nuclear Physics, Academy of Sciences, the U.S.S.R., 188350 Gatchina, Russian Federation","abstract":"We have developed a method to isolate yeast (Saccharomyces cerevisiae) mutants with enhanced induced mutagenesis based on nitrous acid-induced reversion of the ade2-42 allele. Six mutants have been isolated and designated him (high induced mutagenesis), and 4 of them were studied in more detail. The him mutants displayed enhanced reversion of the ade2-42 allele, either spontaneous or induced by nitrous acid, UV light, and the base analog 6-N-hydroxylaminopurine, but not by γ-irradiation. It is worth noting that the him mutants turned out not to be sensitive to the lethal effects of the mutagens used. The enhancement in mutation induced by nitrous acid, UV light, and 6-N-hydroxylaminopurine has been confirmed in a forward-mutation assay (induction of mutations in the ADE1, ADE2 genes). The latter agent revealed the most apparent differences between the him mutants and the wild-type strain and was, therefore, chosen for the genetic analysis of mutants. him mutations analyzed behaved as a single Mendelian trait; complementation tests indicated 3 complementation groups (HIM1, HIM2, and HIm3), each containing 1 mutant allele. Uracil-DNA glycosylase activity was determined in crude cell extracts, and no significant differences between the wild-type and him strains detected. Spontaneous mitotic gene conversion at the ADE2 locus is altered in him1 strains, either increased or decreased, depending on the particular heteroallelic combination. Genetic evidence strongly suggests him mutations to be involved in a process of mismatch correction of molecular heteroduplexes. © 1989.","author_keywords":"Enhanced mutagenesis; Mitotic gene conversion; S. cerevisiae","correspondence_address1":"Ivanov, E.L.; B.P. Konstantinov Leningrad Institute of Nuclear Physics, Academy of Sciences, the U.S.S.R., 188350 Gatchina, Russian Federation","issn":"00275107","coden":"MRFME","pubmed_id":"2668746","language":"English","abbrev_source_title":"Mutat. Res. Fundam. Mol. Mech. Mutagen.","document_type":"Article","source":"Scopus","bibtex":"@ARTICLE{Ivanov1989105,\r\nauthor={Ivanov, E.L. and Kovaltzova, S.V. and Korolev, V.G.},\r\ntitle={Saccharomyces cerevisiae mutants with enhanced induced mutation and altered mitotic gene conversion},\r\njournal={Mutation Research - Fundamental and Molecular Mechanisms of Mutagenesis},\r\nyear={1989},\r\nvolume={213},\r\nnumber={2},\r\npages={105-115},\r\ndoi={10.1016/0027-5107(89)90141-3},\r\nnote={cited By 16},\r\nurl={https://www.scopus.com/inward/record.uri?eid=2-s2.0-0024359631&doi=10.1016%2f0027-5107%2889%2990141-3&partnerID=40&md5=f19c7ea2b5e5891bb6ffaf130ace757b},\r\naffiliation={B.P. Konstantinov Leningrad Institute of Nuclear Physics, Academy of Sciences, the U.S.S.R., 188350 Gatchina, Russian Federation},\r\nabstract={We have developed a method to isolate yeast (Saccharomyces cerevisiae) mutants with enhanced induced mutagenesis based on nitrous acid-induced reversion of the ade2-42 allele. Six mutants have been isolated and designated him (high induced mutagenesis), and 4 of them were studied in more detail. The him mutants displayed enhanced reversion of the ade2-42 allele, either spontaneous or induced by nitrous acid, UV light, and the base analog 6-N-hydroxylaminopurine, but not by γ-irradiation. It is worth noting that the him mutants turned out not to be sensitive to the lethal effects of the mutagens used. The enhancement in mutation induced by nitrous acid, UV light, and 6-N-hydroxylaminopurine has been confirmed in a forward-mutation assay (induction of mutations in the ADE1, ADE2 genes). The latter agent revealed the most apparent differences between the him mutants and the wild-type strain and was, therefore, chosen for the genetic analysis of mutants. him mutations analyzed behaved as a single Mendelian trait; complementation tests indicated 3 complementation groups (HIM1, HIM2, and HIm3), each containing 1 mutant allele. Uracil-DNA glycosylase activity was determined in crude cell extracts, and no significant differences between the wild-type and him strains detected. Spontaneous mitotic gene conversion at the ADE2 locus is altered in him1 strains, either increased or decreased, depending on the particular heteroallelic combination. Genetic evidence strongly suggests him mutations to be involved in a process of mismatch correction of molecular heteroduplexes. © 1989.},\r\nauthor_keywords={Enhanced mutagenesis; Mitotic gene conversion; S. cerevisiae},\r\ncorrespondence_address1={Ivanov, E.L.; B.P. 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