1.14.15.22 | wild-type to 1.5 A resolution, and mutant R84A, native protein and in complex with 1alpha,25-dihydroxyvitamin D3. The compound is positioned 11 A from the iron atom along the I helix within the pocket. The loss of two hydrogen bonds in the R84A mutant increases the adaptability of the B and F helices, creating a transient binding site |
737669 |