Figure 6 - full size

 

Figure 6.
Figure 6: Model of GroEL/ES and RbcX[2]-assisted folding and assembly of Rubisco. a, Folded RbcL with a disordered C-terminal region is transiently released from the GroEL/GroES. b, RbcX[2] binds to the exposed RbcL C terminus, c, RbcL dimers are formed, ‘stapled’ together by the interaction of RbcX[2] with the C terminus of one RbcL and the N-terminal domain of the adjacent subunit. d, Stable dimers assemble to RbcL[8]–(RbcX[2])[8] complexes. e, RbcS binding weakens the RbcL–RbcX[2] interaction. Dissociation of RbcX[2] and binding of RbcS may occur in a stepwise manner, populating intermediates. f, RbcX[2] dissociates, enabling the C-terminal region of RbcL to adopt its final position and allowing maturation of Rubisco.

The above figure is reprinted by permission from Macmillan Publishers Ltd: Nature (2010, 463, 197-202) copyright 2010.