Cloning of a complementary deoxyribonucleic acid encoding a portion of rat intestinal preapolipoprotein AIV messenger ribonucleic acid.

Cloning of a complementary deoxyribonucleic acid encoding a portion of rat intestinal preapolipoprotein AIV messenger ribonucleic acid.
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编码大鼠肠道前载脂蛋白 AIV 信使核糖核酸部分的互补脱氧核糖核酸的克隆。

DOI:
10.1021/bi00265a007
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发表时间:
1982
期刊:
影响因子:
2.9
通讯作者:
Strauss,AW
Strauss,AW
中科院分区:
生物学3区
文献类型:
--
作者:
Gordon,JI;Smith,DP;Alpers,DH;Strauss,AW

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杰弗里岛放大图片作者:Dennis P. Smith,大卫H. Alpers和Arnold W.载脂蛋白AIV是小肠合成的主要载脂蛋白之一。我们克隆了编码前载脂蛋白AIV mRNA一部分的cDNA。用一种富含肠粘膜mRNA序列的cDNA探针,从肠上皮细胞总mRNA中筛选cDNA文库。通过杂交分析确定了丰富的mRNA序列类别。该频率类别的总复杂度为5300个核苷酸,占累积mRNA序列的25%。包含该载脂蛋白(apo)1AIV的mRNA是由肠合成的主要载脂蛋白之一(Wu & Windmueller,1978; Imaizumi et al. 1978年)。Wu和Windmueller使用标记氨基酸进行体内灌注,估计59%的大鼠血浆apo AIV来自肠,其余由肝脏合成(Wu和Windmueller,1979)。载脂蛋白AIV的生理功能尚不清楚(Swaney等人,1977年)。它是大鼠主要的血浆载脂蛋白之一。尽管这种载脂蛋白存在于VLDL、HDL和乳糜微粒中,但至少50%似乎与任何血浆脂蛋白密度类别无关(Fidge,1980)。尽管如此,Utermann及其同事利用电荷移位电泳证明,
Jeffrey I. Gordon,* Dennis P. Smith, David H. Alpers, and Arnold W. Strauss abstract: Apolipoprotein AIV is one of the principal apo-lipoproteins synthesized by therat small intestine. We have cloned a cDNA encoding a portion of preapolipoprotein AIV mRNA. A kinetically fractionated cDNA probe highly en-riched for the abundant intestinal mucosal mRNA sequences was used to screena library of recombinants containing cDNA generated from total intestinal epithelial mRNA. The abundant class of mRNA sequences was defined by hybrid-ization analyses. This frequency class had an aggregate complexity of 5300 nucleotides and represented 25% of ac-cumulated mRNA sequences. The mRNAs comprising this•^ Apolipoprotein (apo) 1 AIV is one of the major apolipoproteins synthesized by the intestine (Wu & Windmueller, 1978; Imaizumi et al., 1978). Wu and Windmueller used in vivo perfusion with labeled amino acids to estimate that 59% of rat plasma apo AIV was derived from the intestine, with the rest being synthesized by the liver (Wu & Windmueller, 1979). The physiologicfunction of apo AIV is not known (Swaney et al., 1977). It is one of the principal plasma apolipoproteins in rats. Although this apoprotein is found in VLDL, HDL, and chylomicrons, at least 50% appears to be unassociated with any of the plasma lipoprotein density classes (Fidge, 1980). Nonetheless, using charge shift electrophoresis, Utermann and co-workers have shown that apo AIV binds
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