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Figure 4.
Figure 4: Structure of the postsynaptic nucleoprotein filament.
a, Structure of the
RecA[5]–(ADP-AlF[4]-Mg)[5]–(dT)[15]–(dA)[12] complex. The
five RecA protomers are coloured as the first five protomers of
Fig. 1a. The primary (dT)[15] strand (red) has 13 ordered
nucleotides, and the complementary (dA)[12] strand (magenta) has
10 ordered nucleotides. b, View of the heteroduplex looking down
the filament axis, showing the three central base-pair triplets
(of RecA^2, RecA^3 and RecA^4).
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