Fig. 3: Ribbon diagram of the Stat3ß homodimer DNA complex. The N-terminal helix bundle is coloured blue, the ß-barrel domain red, the connector domain green and the SH2 and phosphotyrosine containing region yellow; the grey strands represent disordered regions of the dimer. [Reprinted by permission from Nature - copyright 1998 - Macmillan Magazines Ltd.].