Figure 3.

Molecular surface grid-approximation. (A) The molecular surface (black) is defined by the atomic contact of a rolling sphere and the reentrants (dashed) resulting at the sphere contacts of multiple atoms. (B) The finite-grid approximation in HOLLOW results in a surface (blue) that closely approximates the molecular surface.

Ho and Gruswitz BMC Structural Biology 2008 8:49   doi:10.1186/1472-6807-8-49
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