in the spherocytic cells , which lack the principal components of the cytoskeletal matrix of normal cells , the diffusion coefficients of lipid ( 1.5 +/- 0.5 x 10 ( -8 ) cm2/s ) and protein ( 2.5 +/- 0.6 x 10 ( -9 ) cm2/s ) differ only by a factor of 6 , close to the difference predicted on the basis of size by the two-dimensional bilayer continuum model of saffman and delbruck [ saffman , p. g. l & delbruck , m. ( 1975 ) proc . natl . acad . sci . usa 72 , 3111-3113 ] .
C0007634
cells
C0010853
cytoskeletal