2011/05/16 by Yunxin Zhang · 6 citations
Agricultural and Biological Sciences · Biochemistry, Genetics and Molecular Biology · Physics and Astronomy · #Biology #Biophysics #Cell biology #Kinesin #Micro and Nano Robotics #Microtubule #Microtubule and mitosis dynamics #Physics #Plant nutrient uptake and metabolism #physics.bio-ph #q-bio.SC
paper · pdf · doi:10.1007/s10955-013-0804-y
published in Journal of Statistical Physics 152(6), 1207-1221 (Springer Science+Business Media)
arxiv created 2011/05/16 · openalex publication_date 2013/07/15 · arxiv updated 2015/03/06 · openalex created_date 2020/11/23 · openalex updated_date 2026/07/29
Recently, a three-state model is presented to describe the intracellular traffic of unconventional (single-headed) kinesin KIF1A [Phys. Rev. Lett. \bf 95, 118101 (2005)], in which each motor can bind strongly or weakly to its microtubule track, and each binding site of the track might be empty or occupied by one motor. As the usual two-state model, i.e. the totally asymmetric simple exclusion process (TASEP) with motor detachment and attachment, in steady state of the system, this three-state model also exhibits shock (or domain wall separating the high-density and low density phases) and boundary layers. In this study, using mean-field analysis, the conditions of existence of shock and boundary layers are obtained theoretically. Combined with numerical calculations, the properties of shock are also studied. This study will be helpful to understand the biophysical properties of the collective transport of kinesin KIF1A.