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Figure 1 | Theoretical Biology and Medical Modelling

Figure 1

From: Surface aggregation patterns of LDL receptors near coated pits III: potential effects of combined retrograde membrane flow-diffusion and a polarized-insertion mechanism

Figure 1

The geometry of the model. a) A circular trap of radius a (the coated pit) is encircled by an annulus of radius b (the reference region Ω associated with a coated pit). LDL receptors originally inserted at a point (r, θ) inside the reference annulus Ω, move afterwards by convection and diffusion until they are trapped in coated pits. b) Receptor insertion occurs according to a partitioned insertion rate function S (c, p, q, m, α), which sorts receptors at distinct rates S c m , α , S p m , α and S q m , α linked respectively to the disjoint regions Ω c , Ω p and Ω q .

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