Fig. 2. Strip from ¹⁵N-edited ¹H, ¹H NOESY of ²H, ¹³C, ¹⁵N CYP17A1/abiraterone showing NOE connectivity between the amide NH resonance of I493 and those of residues G162, Q163 and I165 in the β5 sheet. Positions of those residues in the 3RUK structure as well as N–N distances are shown at right.