人血小板衍生生长因子B链基因酵母表达载体的构建
Di 1 jun yi da xue xue bao = Academic journal of the first medical college of PLA（2004）
Abstract
目的构建带信号肽和不带信号肽的人血小板衍生生长因子B(PDGF-B)链基因酵母表达载体,探讨该基因在酵母中的表达效率和活性.方法利用逆转录-聚合酶链反应(RT-PCR)从人血管内皮细胞总RNA中扩增出PDGF-B的cDNA,克隆入pGEM-T载体,进行序列测定.进而克隆至酵母表达质粒pMETB和pMETαA并进行重组子双酶切鉴定.结果扩增获得了含信号肽(578 bp)和不含信号肽(340 bp)的编码PDGF-B链基因;构建了PDGF-B的酵母表达载体pMETB-PDGFB1,pMETαA-PDGFB2.测序结果显示,重组载体中目的基因序列与GENE BANK公布的序列一致.结论人血小板衍生生长因子B链基因酵母表达载体构建成功,为进一步在酵母中的高效表达奠定基础.
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Key words
yeast expression vectors,gene,platelet-derived,b-chain
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