IS10 transposition is regulated by DNA adenine methylation.

Citation:

Roberts D, Hoopes BC, McClure WR, Kleckner N. IS10 transposition is regulated by DNA adenine methylation. Cell. 1985;43 (1) :117-30.

Date Published:

1985 Nov

Abstract:

We show that dam- mutants are a major class of E. coli mutants with increased IS10 activity. IS10 has two dam methylation sites, one within the transposase promoter and one within the inner terminus where transposase presumably binds. Absence of methylation results in increased activity of both promoter and terminus, and completely accounts for increased transposition in dam- strains. Transposition of Tn903 and Tn5 are also increased in dam- strains, probably for analogous reasons. Transposition is also increased when IS10 is hemimethylated. One hemimethylated species is much more active than the other and is estimated to be at least 1000 times more active than a fully methylated element. Evidence is presented that the promoter and inner terminus of IS10 are coordinately activated in a dam-dependent fashion, presumably because they are hemimethylated at the same time. Thus, in dam+ strains, IS10 will transpose preferentially when DNA is hemimethylated. We suggest specifically that IS10 transposition may preferentially occur immediately after passage of a chromosomal replication fork.

Key Publications by Subject Area

Chromosomes as Mechanical Objects

• Kleckner, N., Zickler, D., Jones, G.H., Henle, J., Dekker, J. and Hutchinson, J. 2004. A mechanical basis for chromosome function. Proc. Natl. Acad. Sci. USA, 101, 12592-12597.

• Fisher, J.K. and Kleckner, N. 2014. Magnetic Force Micropiston: an integrated force microfluidic device for the application of compressive forces in a confined environment. Rev. Sci. Instrum. 85 023704 (2014)

Mammalian chromosome dynamics

• Liang, Z., Zickler, D., Prentiss, M., Chang, F.S., Witz, G., Maeshima, K. and Kleckner, N. 2015. Chromosomes progress to metaphase in multiple discrete steps via global compaction/expansion cycles. Cell 161: 1124-1137.

E.coli chromosome dynamics

• Fisher, J.K., Bourniquel, A., Witz, G., Weiner, B., Prentiss, M. and Kleckner, N. 2013. Four-dimensional imaging of E. coli organization and dynamics in living cells. Cell 153, 882-895.

• Kleckner, N., Fisher, J.K., Stouf, M., White, M.A., Bates, D. and Witz, G. 2014. The bacterial nucleoid: nature, dynamics and sister segregation. Curr. Opin. Microbiol. 22: 127-137.

Meiotic Crossover Interference

• Zhang, L., Wang, S., Yin, S., Hong, S. Kim, K.P. and Kleckner, N. 2014. Topoisomerase II mediates meiotic crossover interference. Nature 511: 551-556.

• Zhang, L, Espagne, E., De Muyt, A., Zickler, D. and Kleckner, N. 2014. Interference-mediated synaptonemal complex formation with embedded crossover-designation. Proc. Natl. Acad. Sci. U.S.A. 111(47):E5059-68. doi: 10.1073/pnas.1416411111.

• Wang, S., Zickler, D., Kleckner, N. and Zhang, L. 2015. Meiotic crossover patterns: obligatory crossover, interference and homeostasis in a single process. Cell Cycle, 14(3): 305-314.

Homologous Chromosome Pairing

• Zickler, D. and Kleckner, N. 2015. Recombination, pairing and synapsis of homologs in meiosis. In Kowalczykowski, S., Hunter, N. and Heyer, W.-D., DNA Replication (Cold Spring Harbor: Cold Spring Harbor Press) Cold Spring Harb Perspect Biol 2015;7:a016626 doi: 10.1101/CSHPERSPECT.a016626.

• Gladyshev E. and Kleckner, N. 2014. Direct recognition of homology between double helices of DNA in Neurospora crassa. Nat. Commun. 5: 3509 doi: 10.1038/ncomms4509.

• Mirkin, E.V., Chang, F. S. and Kleckner, N. 2013. Dynamic trans interactions in yeast chromosomes. PLoS One 8(9): e75895. doi:10.1371/journal.pone.0075895

• Danilowicz, C., Lee, C.H., Kim K., Hatch, K., Coljee, V.W., Kleckner, N. and Prentiss, M. 2009. Single molecule detection of direct, homologous DNA/DNA pairing. Proc. Natl. Acad. Sci. USA, 106, 19,824-19,829.

• Weiner, B.M. and Kleckner, N. 1994. Chromosome pairing via multiple interstitial interactions before and during meiosis in yeast. Cell 77: 977-991.

• Burgess, S.M., Kleckner, N. and Weiner, B.M. 1999. Somatic pairing of homologs in budding yeast: existence and modulation. Genes Dev. 13, 1627-1641.

• Kleckner, N. and Weiner, B.M. 1993. Potential advantages of unstable interactions for pairing of chromosomes in meiotic, somatic and premeiotic cells. Cold Spring Harbor Symp. Quant. Biol. 58: 553-565.

Meiotic Sordaria Chromosomes

• De Muyt A, Zhang, L., Piolot, T., Kleckner, N., Espagne,, E. and Zickler D. 2014. E3 ligase Hei10: a multi-faceted structure-based signaling molecule with roles within and beyond meiosis. Genes Dev 28: 1111-1123.

• Storlazzi, A., Gargano, S., Ruprich-Robert, G., Falque, M., David, M., Kleckner, N. and Zickler, D. 2010. Recombination proteins mediate meiotic spatial chromosome organization and pairing. Cell 141 94-106.

Nancy Kleckner

Herchel Smith Professor of Molecular Biology

IS10 transposition is regulated by DNA adenine methylation.

Citation:

Date Published:

Abstract:

Key Publications by Subject Area