泉州师范学院学报
泉州師範學院學報
천주사범학원학보
Journal of Quanzhou Normal College
2009年
2期
82~86
,共null页
孙亮先 谢宪兵 桑庆亮 陈怀宇 陈朝阳 黄周英
孫亮先 謝憲兵 桑慶亮 陳懷宇 陳朝暘 黃週英
손량선 사헌병 상경량 진부우 진조양 황주영
5' LongSAGE Yps基因 西方蜜蜂 转录起始位点 启动子
5' LongSAGE Yps基因 西方蜜蜂 轉錄起始位點 啟動子
5' LongSAGE Yps기인 서방밀봉 전록기시위점 계동자
5' LongSAGE; Ypsilon Schachtel gene; Apis mellifera; transcription start sites (TSS); promoter
使用5' LongSAGE标签序列确定了一个新的西方蜜蜂Ypsilon Schachtel(Yps)基因的转录起始位点,并进而预测了该基因的启动子序列.5' LongSAGE标签的蜜蜂基因组定位结果表明:在成年雄蜂的头部中,蜜蜂Yps基因存在23个转录起始位点,其中优势转录起始位点有4个,其起始频率分别为27.9%、23.1%、13.5%和11.5%.Yps基因TSS的碱基组成分析发现,此23个TSS第一个碱基为A、G、T、C的概率分别为52%、39%、4%、4%.这些结果暗示RNA聚合酶和调控因子在Yps基因启动子的一个较宽范围内的互作控制着不同转录本的起始效率.
使用5' LongSAGE標籤序列確定瞭一箇新的西方蜜蜂Ypsilon Schachtel(Yps)基因的轉錄起始位點,併進而預測瞭該基因的啟動子序列.5' LongSAGE標籤的蜜蜂基因組定位結果錶明:在成年雄蜂的頭部中,蜜蜂Yps基因存在23箇轉錄起始位點,其中優勢轉錄起始位點有4箇,其起始頻率分彆為27.9%、23.1%、13.5%和11.5%.Yps基因TSS的堿基組成分析髮現,此23箇TSS第一箇堿基為A、G、T、C的概率分彆為52%、39%、4%、4%.這些結果暗示RNA聚閤酶和調控因子在Yps基因啟動子的一箇較寬範圍內的互作控製著不同轉錄本的起始效率.
사용5' LongSAGE표첨서렬학정료일개신적서방밀봉Ypsilon Schachtel(Yps)기인적전록기시위점,병진이예측료해기인적계동자서렬.5' LongSAGE표첨적밀봉기인조정위결과표명:재성년웅봉적두부중,밀봉Yps기인존재23개전록기시위점,기중우세전록기시위점유4개,기기시빈솔분별위27.9%、23.1%、13.5%화11.5%.Yps기인TSS적감기조성분석발현,차23개TSS제일개감기위A、G、T、C적개솔분별위52%、39%、4%、4%.저사결과암시RNA취합매화조공인자재Yps기인계동자적일개교관범위내적호작공제착불동전록본적기시효솔.
In this investigation, we determined the transcription initiation start site (TSSs) of a novel honeybee Ypsilon Schachtel(Yps)Yps gene by mapping 5' LongSAGE tag sequences to genome sequence of Apis rnellifera. We also analyzed the gene structure as well as promoter sequences of Yps gene. A total of 23 5' LongSAGE tags were mapped to upstream of Yps gene start condon, indicating Yps gene can initiate transcription at 23 different sites. Noticeably, there were 75% of bee Yps mRNA were started at 4 dominant TSS (27.9% ,23.1%,13.5% and 11.5%) in adult drone head. The results imply that the interplay between polymerases and regulators over broad promoter region dictates the efficiency of productive transcription for the bee Yps gene. This is the first report about divergent TSSs for bee genes.