Identification and Functional Mechanism of Novel Angiotensin I Converting Enzyme Inhibitory Dipeptides from Xerocomus badius Cultured in Shrimp Processing Waste Medium

Table 3

Interaction between dipeptides and residues of ACE.

Cys-Cys		Cys-Arg
Residue name	Distance (Å)	Residue name	Distance (Å)
Ala354(O)-H2	2.337	His353(NE2)-H1	2.367
Ala356(HN)-O1	2.364	Ala354(O)-H2	2.314
Tyr523(OH)-H1	1.759	Glu384(OE2)-H2	2.441
His387(NE2)-O1	1.916	Glu403(OE1)-H3	2.219
Zn-O1	2.088	Arg522(HH11)-O1	2.430
		Glu411(OE2)-O1	1.548

Note. A refers to Hbonds, B to bump, and C to bonds.