Efficient preparation of internally modified single-molecule constructs using nicking enzymes.
Efficient preparation of internally modified single-molecule constructs using nicking enzymes.
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DOI:
10.1093/nar/gkq1004
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发表时间:
2011-02
影响因子:
14.9
通讯作者:
Seidel R
中科院分区:
文献类型:
--
作者:
Luzzietti N;Brutzer H;Klaue D;Schwarz FW;Staroske W;Clausing S;Seidel R
Investigations of enzymes involved in DNA metabolism have strongly benefited from the establishment of single molecule techniques. These experiments frequently require elaborate DNA substrates, which carry chemical labels or nucleic acid tertiary structures. Preparing such constructs often represents a technical challenge: long modified DNA molecules are usually produced via multi-step processes, involving low efficiency intermolecular ligations of several fragments. Here, we show how long stretches of DNA (>50 bp) can be modified using nicking enzymes to produce complex DNA constructs. Multiple different chemical and structural modifications can be placed internally along DNA, in a specific and precise manner. Furthermore, the nicks created can be resealed efficiently yielding intact molecules, whose mechanical properties are preserved. Additionally, the same strategy is applied to obtain long single-strand overhangs subsequently used for efficient ligation of ss- to dsDNA molecules. This technique offers promise for a wide range of applications, in particular single-molecule experiments, where frequently multiple internal DNA modifications are required.
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影响因子:
14.9
作者:
Lushnikov AY;Potaman VN;Lyubchenko YL
通讯作者:
Lyubchenko YL
影响因子:
64.8
作者:
Gore, J;Bryant, Z;Bustamante, C
通讯作者:
Bustamante, C
影响因子:
11.4
作者:
Firman, K;Szczelkun, MD
通讯作者:
Szczelkun, MD
DOI:
10.1007/978-1-59745-483-4_3
发表时间:
2009-01-01
期刊:
MICRO AND NANO TECHNOLOGIES IN BIOANALYSIS: METHODS AND PROTOCOLS
影响因子:
--
作者:
Jo, Kyubong;Schramm, Timothy M.;Schwartz, David C.
通讯作者:
Schwartz, David C.
DOI:
10.1007/s004380050930
发表时间:
1999-01-01
期刊:
MOLECULAR AND GENERAL GENETICS
影响因子:
--
作者:
Gál, J;Schnell, R;Kálmán, M
通讯作者:
Kálmán, M