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Figure 5
Hydrogen-bonding network of loops II and IV is conserved. (a) Despite the lack of a third disulfide in conkunitzin-S1, hydrogen bonding (indicated by yellow dashes) is strikingly similar to that observed in α-dendrotoxin (b) and BPTI (c), two proteins that retain the disulfide (orange). A buried water molecule (red sphere) helps to organize the hydrogen-bonding network in BPTI (c).

Journal logoSTRUCTURAL
BIOLOGY
ISSN: 2059-7983
Volume 62| Part 9| September 2006| Pages 980-990
https://doi.org/10.1107/S0907444906021123
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