|
Volume 271, Number 34,
Issue of August 23, 1996
pp. 20450-20457
©1996 by The American Society for Biochemistry and Molecular Biology, Inc.
DNA End Joining by the Klenow Fragment of DNA Polymerase I
(Received for publication, September 20, 1995, and in revised form, June 3, 1996)
Jeff S.
King
,
Cecilia F.
Fairley
and
William F.
Morgan
¶
From the Laboratory of Radiobiology and Environmental
Health and the ¶ Department of Radiation Oncology, University
of California, San Francisco, California 94143
DNA end joining is a type of illegitimate
recombination characterized by the joining of two DNA ends that lack
homology. Using oligonucleotides as substrate, we found that an
exonuclease-free derivative of the Klenow fragment of
Escherichia coli DNA polymerase I can mediate DNA end
joining in vitro. DNA sequence analysis of product DNA
indicated that overlap products were formed between direct repeat
sequences at the termini of the oligonucleotides. Formation of
recombinant products was dependent on the strandedness of the substrate
DNA, and the rate of product formation was dependent on the size of the
potential overlap. With one to three complementary bases available for
pairing at the 3 termini, there was an absolute requirement that one
of the oligonucleotides be double-stranded, whereas with four
complementary bases, products were also formed in reactions with
single-stranded oligonucleotides. When noncomplementary nucleotides
were added to the terminus of one of the oligonucleotides, product
formation was delayed but not blocked. These data indicate that a DNA
polymerase can mediate DNA double strand break rejoining in the absence
of other proteins.

CiteULike Complore Connotea Del.icio.us Digg Reddit Technorati What's this?
This article has been cited by other articles:

|
 |

|
 |
 
H. Saito, T. Minamisawa, and K. Shiba
Motif programming: a microgene-based method for creating synthetic proteins containing multiple functional motifs
Nucleic Acids Res.,
March 19, 2007;
35(6):
e38 - e38.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
A. Odersky, I. V. Panyutin, I. G. Panyutin, C. Schunck, E. Feldmann, W. Goedecke, R. D. Neumann, G. Obe, and P. Pfeiffer
Repair of Sequence-specific 125I-induced Double-strand Breaks by Nonhomologous DNA End Joining in Mammalian Cell-free Extracts
J. Biol. Chem.,
March 29, 2002;
277(14):
11756 - 11764.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
J. de Vries and W. Wackernagel
Integration of foreign DNA during natural transformation of Acinetobacter sp. by homology-facilitated illegitimate recombination
PNAS,
February 19, 2002;
99(4):
2094 - 2099.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
E. Pastwa, R. D. Neumann, and T. A. Winters
In vitro repair of complex unligatable oxidatively induced DNA double-strand breaks by human cell extracts
Nucleic Acids Res.,
August 15, 2001;
29(16):
e78 - e78.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
E. Feldmann, V. Schmiemann, W. Goedecke, S. Reichenberger, and P. Pfeiffer
DNA double-strand break repair in cell-free extracts from Ku80-deficient cells: implications for Ku serving as an alignment factor in non-homologous DNA end joining
Nucleic Acids Res.,
July 1, 2000;
28(13):
2585 - 2596.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
G. Chu
Double Strand Break Repair
J. Biol. Chem.,
September 26, 1997;
272(39):
24097 - 24100.
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
K. Shiba, Y. Takahashi, and T. Noda
Creation of libraries with long ORFs by polymerization of a microgene
PNAS,
April 15, 1997;
94(8):
3805 - 3810.
[Abstract]
[Full Text]
[PDF]
|
 |
|
Copyright © 1996 by the American Society for Biochemistry and Molecular Biology.
|
Advertisement
Advertisement
|