Close contact fluctuations: the seeding of signalling domains in the immunological synapse

Details Close contact fluctuations: the seeding of signalling domains in the immunological synapse Close contact fluctuations: the seeding of signalling domains in the immunological synapse

2006-12-14

arxiv.org/abs/physics/0612142v1

Physics

Biological Physics

To be published in Europhysics Letters

Scientific paper

10.1209/0295-5075/77/48003

We analyse the size and density of thermally induced regions of close contact in cell:cell contact interfaces within a harmonic potential approximation, estimating these regions to be below one-tenth of a micron across. Our calculations indicate that as the distance between the close contact threshold depth and the mean membrane-membrane separation increases, the density of close contact patches decreases exponentially while there is only a minimal variation in their mean size. The technique developed can be used to calculate the probability of first crossing in reflection symmetry violating systems.

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