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![[Figure 4]](gr0766fig4mag.jpg)
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Figure 4
A comparison of the solvent structures of T-, R- and R2-states of human hemoglobin. In each of the stereoplots the α1 subunit is shown as cyan (upper left), the α2 subunit is shown as blue (lower right), the β1-subunit is yellow–green (lower left), and the β2-subunit is shown as orange (upper right). The panels show the complete water structure associated with (a) the T-state deoxyhemoglobin tetramer 2HHD (Fronticelli et al., 1994  ), (b) the R-state carboxyhemoglobin, 2HCO (Baldwin, 1980), and (c) the R2-state carboxyhemoglobin, 1BBB (Silva et al., 1992). In (d) the conserved solvent positions of all three states are shown associated with the R-state HbCO structure. Conserved water molecules bridging two subunits are shown in green, and those in general positions are shown in magenta. |
![[Figure 4]](gr0766fig4.jpg)
 | STRUCTURAL BIOLOGY |
ISSN: 2059-7983
