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Figure 3.
Figure 3. The Helical Protrusion of Group II Apical
Domains(A) Stereo representation of the helical protrusion.
Atoms are colored in yellow (carbon), blue (nitrogen), and red
(oxygen). Residues conserved throughout the group II chaperonins
are labeled (compare Figure 1).(B) Flexibility of the helical
protrusion as shown by the two crystal forms A (yellow) and B
(orange). Residue Tyr301 is shown for illustrating
conformational changes transmitted from the helical protrusions
to the interhelical cleft region.
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