... D and E + F), (b) a few hydrogenbonds, and a hydrophobic interaction between A + C,B + E and D + F, and (c) electrostatic forces in thecentral channel of the hexamer between B, C and F, and ... Glu204(Fig. 3A,C), and a hydrophobic interaction betweenThr131 and Phe133 (Fig. 3D). The central channel of the hexamer is made up of two layers of electrostaticforces on top of each other, with ... three lysines from the B, C and F subunits, and there is no direct interaction between subunits A and F, B and D, or C and E.A phosphate ion was found in the donor site of allsubunits (Fig. 2B),...