منابع مشابه
[Minisatellite instability induced by okadaic acid].
Okadaic acid (OA) is an inhibitor of serine/threonine protein phosphatase (PP) and a tumor promoter in mouse skin carcinogenesis. According to Carcinogenesis Division, National Cancer Center Research Institute, OA induces various genetic alterations, such as loss of exogenous genes, sister chromatid exchanges and diphtheria toxin resistant mutants, although there is no evidence showing that it ...
متن کاملSpontaneous and induced minisatellite instability in the human genome.
1. Minisatellites, originally developed for forensic DNA fingerprinting and profiling, have also provided extremely informative systems for analysing processes of tandem repeat DNA turnover in the human genome. 2. Minisatellite instability involves distinct mutation processes in somatic and germline cells. In sperm, tandem repeat instability most likely arises at meiosis as a by-product of high...
متن کاملMinisatellite instability in severe combined immunodeficiency mouse cells.
We have recently found that okadaic acid, which shows strong inhibitory activity on protein serine/threonine phosphatases and tumor-promoting activity in vivo and in vitro, induces minisatellite mutation (MSM). Human tumors and chemically induced counterparts in experimental animals are also sometimes associated with MSM. In the present study, we demonstrated minisatellite (MS) instability in s...
متن کاملMinisatellite instability at the Adh locus reveals somatic polymorphism in amphioxus
Amphioxus (subphylum Cephalochordata) is the closest living relative to vertebrates and widely used for phylogenetic analyses of vertebrate gene evolution. Amphioxus genes are highly polymorphic, but the origin and nature of this variability is unknown. We have analyzed the alcohol dehydrogenase locus (Adh3) in two amphioxus species (Branchiostoma lanceolatum and Branchiostoma floridae) and fou...
متن کاملNon-Canonical G-quadruplexes cause the hCEB1 minisatellite instability in Saccharomyces cerevisiae
G-quadruplexes (G4) are polymorphic four-stranded structures formed by certain G-rich nucleic acids in vitro, but the sequence and structural features dictating their formation and function in vivo remains uncertain. Here we report a structure-function analysis of the complex hCEB1 G4-forming sequence. We isolated four G4 conformations in vitro, all of which bear unusual structural features: Fo...
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ژورنال
عنوان ژورنال: Human Molecular Genetics
سال: 1999
ISSN: 1460-2083
DOI: 10.1093/hmg/8.11.1985