RRC ID 4057
著者 Mori Y, Kimura S, Saotome A, Kasai N, Sakaguchi N, Uchiyama Y, Ishibashi T, Yamamoto T, Chiku H, Sakaguchi K.
タイトル Plastid DNA polymerases from higher plants, Arabidopsis thaliana.
ジャーナル Biochem Biophys Res Commun
Abstract Previously, we described a novel DNA polymerase, designated as OsPolI-like, from rice. The OsPolI-like showed a high degree of sequence homology with the DNA polymerase I of cyanobacteria and was localized in the plastid. Here, we describe two PolI-like polymerases, designated as AtPolI-like A and AtPolI-like B, from Arabidopsis thaliana. In situ hybridization analysis demonstrated expression of both mRNAs in proliferating tissues such as the shoot apical meristem. Analysis of the localizations of GFP fusion proteins showed that AtPolI-like A and AtPolI-like B were localized to plastids. AtPolI-like B expression could be induced by exposure to the mutagen H(2)O(2). These results suggested that AtPolI-like B has a role in the repair of oxidation-induced DNA damage. Our data indicate that higher plants possess two plastid DNA polymerases that are not found in animals and yeasts.
巻・号 334(1)
ページ 43-50
公開日 2005-8-19
DOI 10.1016/j.bbrc.2005.06.052
PII S0006-291X(05)01264-7
PMID 15993837
MeSH Amino Acid Sequence Arabidopsis / genetics* Arabidopsis / metabolism* DNA Polymerase I / chemistry DNA Polymerase I / genetics* DNA Polymerase I / metabolism* Molecular Sequence Data Plant Structures / genetics Plant Structures / metabolism Plastids / genetics* Plastids / metabolism* Sequence Homology, Amino Acid Tissue Distribution
IF 2.985
引用数 36
WOS 分野 BIOPHYSICS BIOCHEMISTRY & MOLECULAR BIOLOGY
リソース情報
シロイヌナズナ / 植物培養細胞・遺伝子 pda05342