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. Author manuscript; available in PMC: 2021 Feb 4.
Published in final edited form as: Biochemistry. 2019 Dec 31;59(4):541–551. doi: 10.1021/acs.biochem.9b00822

Table 1.

Regions identified by HDX and FPOP show good agreement with those identified by the crystal structure of the complex.

Contact Region
(residue #)
Observed in X-ray* Identified by HDX Identified by FPOP
18(N-terminal)-28 None 18-28 18-25
46-87 54-56, 63, 66-68, 71, 73, 76 57-87 47-75
113-125 113, 115, 121, 123 116-122 114-125
*

A heavy-atom to heavy-atom distance cut off of less than or equal to 4 Å was used to select residues in close contact to the macrocycle.