Salt bridges:
B:R.33,
B:K.39,
B:K.39,
B:R.357,
B:R.357
pi-Stacking:
B:Y.147
pi-Cation interactions:
B:R.33,
B:R.33
2 x
8UX:
(2~{S})-4-[[(2~{R})-3-(1~{H}-imidazol-4-yl)-1-oxidanyl-1-oxidanylidene-propan-2-yl]amino]-2-[[(2~{S})-1-oxidanyl-1-oxidanylidene-propan-2-yl]amino]butanoic acid(Non-covalent)