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Figure 3.
Figure 3. Structural Comparison of Ta Pelota and the Sm
Protein from P. aerophilum
(A) Superposition of domain 1 of
Ta Pelota (magenta tube) and the P. aerophilum Sm protein
(orange tube) (PDB code 1I8F; Mura et al. [2001]). The conserved
Asn46 and Arg69 of the P. aerophilum Sm protein, termed
RNA-binding knuckles (Khusial et al., 2005), are shown.
(B)
Heptamer structure of the P. aerophilum Sm protein.
(C)
Schematic diagram comparing domain structures of Ta Pelota and
eRF1.
(D) Stereo 2F[o] − F[c] electron density map around
the Pro197-Gly198-Phe199 sequence of Ta Pelota.
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