Table 1.

The distance between the side-chain oxygens of Asp-85 and Thr-89 and the angle between the O—O vector and the membrane normal

Intermediate	Sample	Distance, Å; angle, °		PDB
		BR	Intermediate
K	Wild type	2.8; 32	3.8 (+1.0); 44	1QKP (13)
L	Wild type	2.8; 32	4.2 (+1.4); 46	1EOP (14)
M	D96N	2.8; 31	3.5 (+0.7); 43	1C8S (15)
M	E204Q	2.6; 31	4.2 (+1.6); 46	1F4Z (16)
M	Wild type	2.6; 31	5.1 (+2.5); 44	1CWQ (17)