Waqar M A, Burgoyne L A, Atkinson M R
Biochem J. 1971 Mar;121(5):803-9. doi: 10.1042/bj1210803.
The properties of a nuclear preparation from rat liver and thymus are described. (1) Nearest-neighbour analysis after incorporation of (32)P-labelled nucleotide residues from dATP, dCTP, dGTP, dTTP and arabinofuranosyl analogues of CTP and ATP shows template-dependent DNA synthesis. (2) Where primer termini are limiting, incorporation of arabinofuranosyl analogues of AMP and CMP residues proceeds to a limit indicating that both of these analogues are DNA chain terminators. (3) No large differences have been found between the priming potentialities or the intrinsic DNA polymerase activities of nuclei from resting or regenerating liver and the relationship of this DNA synthesis in vitro to DNA replication or repair in vivo is briefly discussed.
本文描述了大鼠肝脏和胸腺的核制剂的特性。(1) 掺入来自dATP、dCTP、dGTP、dTTP以及CTP和ATP的阿拉伯呋喃糖基类似物的(32)P标记核苷酸残基后的最近邻分析表明存在模板依赖性DNA合成。(2) 在引物末端有限的情况下,AMP和CMP残基的阿拉伯呋喃糖基类似物的掺入达到极限,表明这两种类似物都是DNA链终止剂。(3) 在静止或再生肝脏的核的引发潜力或内在DNA聚合酶活性之间未发现大的差异,并简要讨论了这种体外DNA合成与体内DNA复制或修复的关系。