» Articles » PMID: 2153923

Homologous Recombination Enhancement Conferred by the Z-DNA Motif D(TG)30 is Abrogated by Simian Virus 40 T Antigen Binding to Adjacent DNA Sequences

Overview
Journal Mol Cell Biol
Specialty Cell Biology
Date 1990 Feb 1
PMID 2153923
Citations 14
Authors
Affiliations
Soon will be listed here.
Abstract

The Z-DNA motif polydeoxythymidylic-guanylic [d(TG)].polydeoxyadenylic-cytidylic acid [d(AC)], present throughout eucaryotic genomes, is capable of readily forming left-handed Z-DNA in vitro and has been shown to promote homologous recombination. The effects of simian virus 40 T-antigen-dependent substrate replication upon the stimulation of recombination conferred by the Z-DNA motif d(TG)30 were analyzed. Presence of d(TG)30 adjacent to a T-antigen-binding site I can stimulate homologous recombination between nonreplicating plasmids, providing that T antigen is absent, in both simian CV-1 cells and human EJ cells (W. P. Wahls, L. J. Wallace, and P. D. Moore, Mol. Cell. Biol. 10:785-793). It has also been shown elsewhere that the presence of d(TG)n not adjacent to the T-antigen-binding site can stimulate homologous recombination in simian virus 40 molecules replicating in the presence of T antigen (P. Bullock, J. Miller, and M. Botchan, Mol. Cell. Biol. 6:3948-3953, 1986). However, it is demonstrated here that d(TG)30 nine base pairs distant from a T-antigen-binding site bound with T antigen does not stimulate recombination between either replicating or nonreplicating substrates in somatic cells. The bound T antigen either prevents the d(TG)30 sequence from acquiring a recombinogenic configuration (such as left-handed Z-DNA), or it prevents the interaction of recombinase proteins with the sequence by stearic hindrance.

Citing Articles

Homologous recombination occurs frequently at innate GT microsatellites in normal somatic and germ cells in vivo.

Zheng J, Li H, Zhang Q, Sun L, Liu X, Luo C BMC Genomics. 2018; 19(1):359.

PMID: 29751739 PMC: 5948810. DOI: 10.1186/s12864-018-4758-y.


Minimum length of direct repeat sequences required for efficient homologous recombination induced by zinc finger nuclease in yeast.

Ren C, Yan Q, Zhang Z Mol Biol Rep. 2014; 41(10):6939-48.

PMID: 25024047 DOI: 10.1007/s11033-014-3579-6.


Expansion of microsatellites on evolutionary young Y chromosome.

Kejnovsky E, Michalovova M, Steflova P, Kejnovska I, Manzano S, Hobza R PLoS One. 2013; 8(1):e45519.

PMID: 23341866 PMC: 3547029. DOI: 10.1371/journal.pone.0045519.


Z-DNA-forming sequences generate large-scale deletions in mammalian cells.

Wang G, Christensen L, Vasquez K Proc Natl Acad Sci U S A. 2006; 103(8):2677-82.

PMID: 16473937 PMC: 1413824. DOI: 10.1073/pnas.0511084103.


A chromosomal position effect on gene targeting in human cells.

Yanez R, Porter A Nucleic Acids Res. 2002; 30(22):4892-901.

PMID: 12433992 PMC: 137162. DOI: 10.1093/nar/gkf614.


References
1.
Wahls W, Wallace L, Moore P . The Z-DNA motif d(TG)30 promotes reception of information during gene conversion events while stimulating homologous recombination in human cells in culture. Mol Cell Biol. 1990; 10(2):785-93. PMC: 360879. DOI: 10.1128/mcb.10.2.785-793.1990. View

2.
Kelly T . SV40 DNA replication. J Biol Chem. 1988; 263(34):17889-92. View

3.
Mandel M, Higa A . Calcium-dependent bacteriophage DNA infection. J Mol Biol. 1970; 53(1):159-62. DOI: 10.1016/0022-2836(70)90051-3. View

4.
Southern E . Detection of specific sequences among DNA fragments separated by gel electrophoresis. J Mol Biol. 1975; 98(3):503-17. DOI: 10.1016/s0022-2836(75)80083-0. View

5.
Tjian R . The binding site on SV40 DNA for a T antigen-related protein. Cell. 1978; 13(1):165-79. DOI: 10.1016/0092-8674(78)90147-2. View