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- W817669061 abstract "세포주기 조절에서 유전자 발현의 조절은 매우 중요한 부분이다. 본 연구에서는 인간의 유전자인 SMARCADl과 상동성을 가지는 분열형 효모의 새로운 유전자 <TEX>$mas3^+$</TEX>를 분리하였다. 이 두 유전자는 <TEX>$87%$</TEX>의 상동성을 보인다. <TEX>$mas3^+$</TEX>유전자는 DEAD/H box를 포함한 7개의 motif를 가지고 있어서 helicase superfamily 중에서도 SNF2 family에 속한다. kanMX6를 선별 표지로 이용하여 <TEX>$mas3^+$</TEX>유전자 결손 세포를 구성하였고 <TEX>$mas3^+$</TEX> 유전자 결손 세포는 UV와 MMS처리 실험에서 정상의 세포와 생존율이 비슷하여 DNA상해회복과는 관련이 없음을 알 수 있었다. <TEX>$mas3^+$</TEX> 유전자의 세포주기별 발현 양을 분석한 결과 <TEX>$G_2$</TEX>단계부터 점차적으로 발현양이 늘어났다. <TEX>$mas3^+$</TEX>결손 돌연변이를 <TEX>$26^{circ}C$</TEX>와 <TEX>$35^{circ}C$</TEX>에서 배양한 결과, 비정상적인 세포질 분열 과정으로 인해 다중 격막 세포의 빈도가 증가하였다. 이상의 결과들은 <TEX>$mas3^+$</TEX>유전자는 세포질 분열과 세포형태 형성에 연관되어 있음을 시사한다. The regulation of gene expression plays an important rolet in cell cycle controls. In this study, a novel <TEX>$mas3^+$</TEX> (mitosis associated protein) gene, a homolog of human SMARCADl, was isolated and characterized from a fission yeast Schizosaccharomyces pombe. The overall homology between the helicase proteins of the two species is <TEX>$87%$</TEX>. This DEAD/H box-containing molecule has seven highly conserved sequence regions that allow us to place it in the SNF2 family of the helicase superfamily. Knock-out cell of <TEX>$mas3^+$</TEX> gene was constructed using kanMX6 as a selection marker. Survival of mas3 null mutant exposed to UV or MMS was similar to those of wild type cells. <TEX>$mas3^+$</TEX> expression was lowest at <TEX>$G_2$</TEX> and gradually increased. Cytokinesis of mas3 null mutant was abnormal at <TEX>$26^{circ}C;and;35^{circ}C$</TEX> and a large number of multi-septate cells were produced. These results indicate that the <TEX>$mas3^+$</TEX> is involved in cytokinesis and cell shape control." @default.
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- W817669061 date "2005-02-01" @default.
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- W817669061 title "Studies on Intracellular Functions of the mas3Gene in the Fission Yeast, Schizosaccharomyces pombe" @default.
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- W817669061 doi "https://doi.org/10.5352/jls.2005.15.1.124" @default.
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