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Suckjoon Jun


The driving force of our lab is the curiosity and desire to understand why the biological systems are the way they are. We are often attracted to long-standing questions in biology, for which quantitative, inter- and multi-disciplinary approaches are essential. Some of these questions include: What is the driving force underlying chromosome segregation in bacteria? What is the relationship between growth and cell cycle? What is the origin of the plasticity of cell shape? While our research is naturally question-driven, we also develop tools when necessary. In doing so, we try to meet the highest standard in the relevant discipline (be it physics, biology, or engineering). We value both logic and intuition, but more of "night science" than "day science."


  • John T Sauls, Dongyang Li, and Suckjoon Jun (2016).Adder and a coarse-grained approach to cell size homeostasis in bacteria. Current Opinion in Cell Biology 38:38-44.
  • Sattar Taheri-Araghi and Suckjoon Jun (2015). Single-cell cultivation in microfluidic devices.Hydrocarbon and Lipid Microbiology Protocols, Springer Protocols Handbooks, doi:10.1007/8623_2015_68.
  • Sattar Taheri, Steven Brown, John T. Sauls, Dustin McIntosh, Suckjoon Jun (2015). Single-cell physiology.Annual Review of Biophysics 44, 123-142.
  • S. D. Brown and S. Jun (2015).Complete Genome Sequence of Escherichia coli NCM3722. Genome Announc 3(4):e00879-15. doi:10.1128/genomeA.00879-15.
  • S. Taheri-Araghi, S. Bradde, J. T. Sauls, N. S. Hill, P. A. Levin, J. Paulsson, M. Vergassola, and S. Jun (2015). Cell-size control and homeostasis in bacteria.Current Biology 25(3), 385–391
  • S. Jun and S. Taheri-Araghi (2015). Cell-size maintenance: universal strategy revealed.Trends in Microbiology 23(1), 4–6.
  • S. Jun (2015). Chromosome, cell cycle, and entropy Chromosome, cell cycle, and entropy.Biophysical Journal 108(4), 785-786.
  • Ariel Amir, Farinaz Babaeipour, Dustin McIntosh, David Nelson, and Suckjoon Jun (2014).Bending forces plastically deform growing bacterial cell walls.Proc. Nat. Acad. Sci. USA 111, 5778-5783.
  • Brenda Youngren, Henrik Jork Nielsen, Suckjoon Jun, and Stuart Austin (2014). The multifork Escherichia coli chromosome is a self-duplicating and self-segregating thermodynamic ring polymer. Genes & Development 28:71-84.
  • J. Pelletier, K. Harvorsen, B.-Y. Ha, R. Paparcone, S. Sandler, C. Woldringh, W. Wong, S. Jun (2012). Physical manipulation of the Escherichia coli chromosome reveals its soft nature. Proc. Nat. Acad. Sci. Plus, in press.
  • Y. Jung, J. Kim, S. Jun and B.-Y. Ha (2012). Intrachain ordering and segregation of polymers under confinement. Macromolecules 45 (7), 3256-3262.
  • Y. Jung, C. Jeon, J. Kim, H. Jeong, S. Jun and B.-Y. Ha (2012).Ring polymers as model bacterial chromosomes: confinement, chain topology, single chain statistics and how they interact. Soft Matter 8, 2095-2102.
  • P. Wang, L. Robert, J. Pelletier, W. Dang, F. Taddei, A. Wright, S. Jun (2010). Robust growth of Escherichia coli. Current Biology 20, 1099-1103.
  • Suckjoon Jun and Andrew Wright (2010). Entropy as the driver of chromosome segregation. Nature Reviews Microbiology 8, 600-607.
  • Suckjoon Jun, D. Thirumalai and Bae-Yeun Ha (2008). Compression and stretching of a self-avoiding chain in cylindrical nano pores. Phys. Rev. Lett. 101, 138101.
  • Suckjoon Jun, Axel Arnold and Bae-Yeun Ha (2007). Confined space and effective interactions of multiple self-avoiding chains. Phys. Rev. Lett. 98, 128303.
  • Suckjoon Jun and Bela Mulder (2006). Entropy-driven sptial organization of highly confined polymers: Lessons for the bacterial chromosome. Proc. Nat. Acad. Sci. 103, 12388.
  • John Herrick, Suckioon Jun, John Bechhoefer, and Aaron Bensimon (2002). Kinetic model of DNA replication in eucaryotic organisms. J. Mol. Biol. 320, 741-750.


Suckjoon Jun received his Ph.D. in theoretical physics from Simon Fraser University in Vancouver, Canada. He continued to work as a theorist for his post-doctoral training at the FOM-Institute AMOLF in Amsterdam and briefly at Necker Hospital in Paris with NSERC (Canada) and Marie Curie (Europe) post-doctoral fellowships. He was a Bauer Fellow at Harvard University between 2007-2012 before moving to UCSD, during which he completely switched to experimental physical and systems biology.