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. Author manuscript; available in PMC: 2020 Dec 17.
Published in final edited form as: Anal Chem. 2019 Nov 22;91(24):15709–15717. doi: 10.1021/acs.analchem.9b03879

Table 2.

Summary of representative models from the largest clusters by using any two cross-links as docking restraints. The solvent accessible area (SASA) of two most protected regions in IL-7, as indicated by HDX kinetics, are calculated for each docking model and for the unbound-state IL-7 in Pymol.

Crosslink-based Restraints Size of Largest Cluster Model Category SASA of Peptide in IL-7, Å Matching with HDX (Y/N) Compared to X-ray Structure, r.m.s.d, Å
19VSIDQL24 83VSEGTTIL90
Bound IL-7 in Models Unbound IL-7 Bound IL-7 in Models Unbound IL-7
1_2 10 Type 3 230 230 268 319 N 12.3
1_3 26 Type 1 133 220 Y 1.7
1_4 22 Type 2 230 247 N 11.0
1_5 11 Type 1 141 211 Y 1.4
2_3 25 Type 1 158 213 Y 1.9
2_4 10 Type 2 230 269 N 10.9
2_5 12 Type 1 137 209 Y 1.5
3_4 15 Type 1 142 214 Y 1.7
3_5 62 Type 1 160 201 Y 1.7
4_5 4_5.1 13 Type 1 127 213 Y 1.3
4_5.2 13 Type 2 230 253 N 10.9