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Figure 4
(a) Homohexamer predicted by PISA for PDB entry 1qex . (b) 1qex homotrimer identified as the biological unit in an experimental study by Rossmann et al. (2004BB58); the hexamer is predicted to dissociate into two trimers. (c) Alternative homotrimer 1s2e obtained by different main-chain tracing in the same electron-density maps as 1qex ; 1s2e trimers are correctly identified by PISA as not forming stable hexamers. See discussion in the text. The images were produced using the CCP4mg graphical viewer (Potterton et al., 2004BB56).

Journal logoBIOLOGICAL
ISSN: 1399-0047
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