xgranly 发表于 2008-4-2 14:30:00

[原创]AMV 逆转录酶

<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b style="mso-bidi-font-weight: normal;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-bidi-font-size: 10.5pt;">产品介绍:</span></b><b style="mso-bidi-font-weight: normal;"><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><p></p></span></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><font face="Times New Roman">AMV </font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">逆转录酶从</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ansi-language: ZH-CN;">鸟类成髓细胞白血病病毒(amv)中分离出来的,它拥有双重活性:1.</span><b style="mso-bidi-font-weight: normal;"><span lang="EN-US" style="COLOR: black; mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">5' &gt; 3'</font></span></b><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-bidi-font-size: 10.5pt;">依赖引物的聚合酶活性,可以以</span><span lang="EN-US" style="COLOR: black; mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">RNA</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-bidi-font-size: 10.5pt;">或</span><span lang="EN-US" style="COLOR: black; mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">DNA</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-bidi-font-size: 10.5pt;">作为模板;</span><span lang="EN-US" style="COLOR: black; mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">2.</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-bidi-font-size: 10.5pt;">具有</span><b style="mso-bidi-font-weight: normal;"><span lang="EN-US" style="COLOR: black; mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">3' &gt; 5'Rase H </font></span></b><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-bidi-font-size: 10.5pt;">活性,可以降解</span><span lang="EN-US" style="COLOR: black; mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">RNA/DNA</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-bidi-font-size: 10.5pt;">杂合体中的</span><span lang="EN-US" style="COLOR: black; mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">RNA</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-bidi-font-size: 10.5pt;">,它需要</span><span lang="EN-US" style="COLOR: black; mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">Mg2+</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-bidi-font-size: 10.5pt;">或</span><span lang="EN-US" style="COLOR: black; mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">Mn2+</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-bidi-font-size: 10.5pt;">激活。它可用于双脱氧法测定</span><span lang="EN-US" style="COLOR: black; mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">DNA</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-bidi-font-size: 10.5pt;">或</span><span lang="EN-US" style="COLOR: black; mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">RNA</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-bidi-font-size: 10.5pt;">的序列和以短的</span><span lang="EN-US" style="COLOR: black; mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">RNA</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-bidi-font-size: 10.5pt;">为模板合成</span><span lang="EN-US" style="COLOR: black; mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">cDNA</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-bidi-font-size: 10.5pt;">。</span><span lang="EN-US" style="COLOR: black; mso-bidi-font-size: 10.5pt;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US" style="COLOR: black;"><font face="Times New Roman">Moloney Murine Leukemia Virus</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">(</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ansi-language: ZH-CN;">莫洛尼</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt;"><font face="Times New Roman">(</font></span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ansi-language: ZH-CN;">氏</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt;"><font face="Times New Roman">)</font></span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ansi-language: ZH-CN;">鼠白血病病毒</span><span lang="EN-US" style="FONT-FAMILY: 宋体; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体;">M-MuLV</span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">)逆转录酶从</span><span lang="EN-US" style="COLOR: black;"><font face="Times New Roman">E.coli</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">菌株提取出来,此菌株含有一个克隆有</span><span lang="EN-US" style="COLOR: black;"><font face="Times New Roman">M-MuLV RT</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">基因的质粒,</span><span lang="EN-US" style="COLOR: black;"><font face="Times New Roman">M-MuLV</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">基因被删去了</span><span lang="EN-US" style="COLOR: black;"><font face="Times New Roman">RNAase H </font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">核心部分。</span><span lang="EN-US" style="COLOR: black;"><font face="Times New Roman">M-MuLV Rtase</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">是一个依赖</span><span lang="EN-US" style="COLOR: black;"><font face="Times New Roman">RNA</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">的</span><span lang="EN-US" style="COLOR: black;"><font face="Times New Roman">DNA</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">聚合酶,在引物存在的条件下,可以以单链的</span><span lang="EN-US" style="COLOR: black;"><font face="Times New Roman">RNA</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">或</span><span lang="EN-US" style="COLOR: black;"><font face="Times New Roman">DNA</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">为模板合成互补</span><span lang="EN-US" style="COLOR: black;"><font face="Times New Roman">DNA</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">链,它缺少</span><span lang="EN-US" style="COLOR: black;"><font face="Times New Roman">RNAse H </font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">活性。</span><span lang="EN-US" style="COLOR: black;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b style="mso-bidi-font-weight: normal;"><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-bidi-font-size: 10.5pt;">应用:</span></b><b style="mso-bidi-font-weight: normal;"><span lang="EN-US" style="COLOR: black; mso-bidi-font-size: 10.5pt;"><p></p></span></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 18pt; TEXT-INDENT: -18pt; mso-list: l0 level1 lfo1; tab-stops: list 18.0pt;"><font face="Times New Roman"><span lang="EN-US" style="COLOR: black; mso-bidi-font-size: 10.5pt; mso-fareast-font-family: &quot;Times New Roman&quot;;"><span style="mso-list: Ignore;">1.<span style="FONT: 7pt &quot;Times New Roman&quot;;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span lang="EN-US" style="COLOR: black; mso-bidi-font-size: 10.5pt;">RT-PCR </span></font><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-bidi-font-size: 10.5pt;">和</span><span lang="EN-US" style="COLOR: black; mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">cDNA</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-bidi-font-size: 10.5pt;">合成;</span><span lang="EN-US" style="COLOR: black; mso-bidi-font-size: 10.5pt;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 18pt; TEXT-INDENT: -18pt; mso-list: l0 level1 lfo1; tab-stops: list 18.0pt;"><font face="Times New Roman"><span lang="EN-US" style="mso-bidi-font-size: 10.5pt; mso-fareast-font-family: &quot;Times New Roman&quot;;"><span style="mso-list: Ignore;">2.<span style="FONT: 7pt &quot;Times New Roman&quot;;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><span lang="EN-US" style="COLOR: black; mso-bidi-font-size: 10.5pt;">RNA</span></font><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-bidi-font-size: 10.5pt;">测序和双脱氧法测</span><span lang="EN-US" style="COLOR: black; mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">DNA</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-bidi-font-size: 10.5pt;">序列;</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 18pt; TEXT-INDENT: -18pt; mso-list: l0 level1 lfo1; tab-stops: list 18.0pt;"><span lang="EN-US" style="mso-bidi-font-size: 10.5pt; mso-fareast-font-family: &quot;Times New Roman&quot;;"><span style="mso-list: Ignore;"><font face="Times New Roman">3.<span style="FONT: 7pt &quot;Times New Roman&quot;;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></font></span></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-bidi-font-size: 10.5pt;">引物延伸和</span><span lang="EN-US" style="COLOR: black; mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">DNA</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-bidi-font-size: 10.5pt;">片段</span><span lang="EN-US" style="COLOR: black; mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">3`-</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-bidi-font-size: 10.5pt;">末端的标记。</span><a name="mulv"></a><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US" style="COLOR: black;"><font face="Times New Roman">4</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">逆转录和合成</span><span lang="EN-US" style="COLOR: black;"><font face="Times New Roman">cDNA</font></span><span style="COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">的第一条链;</span><span lang="EN-US" style="COLOR: black;"><p></p></span></p>
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