in crude homogenates , the maximal binding capacity but not the affinity for ouabain varied in different parts of the sheep heart with purkinje fibres containing markedly fewer binding sites ( 0.33 x 10 ( 14 ) /g wet weight ; left ventricle , 1.3 x 10 ( 14 ) /g wet weight ) and in isolated , contracting purkinje fibres and right ventricular moderator band strips , concentration-response curves for [ 3h ] -ouabain binding , increase in force of contraction and inhibition of [ 86rb+ ] -uptake were co-incident .
C0018787
heart
C0225883
right