TABLE 2.

Fits of Fourier Peak III of oriented PS II membranes (S₁ state) at angles of 15 and 75° between the membrane normal and the e-vector of the linearly polarized x-ray beam

Fit #	Angle	Shell	R(Å)	Napp	σ2 (Å2) × 103	Φ (×103)	ε2 (×105)
Peak III isolate
1	15°	Manganese-calcium	3.37	0.77a	2b	0.42	0.14
2	75°	Manganese-manganese	3.24	0.46a	2b	0.49	0.17
	15°	Manganese-manganese		0.22c
	75°	Manganese-calcium		0.11d

^aErrors are estimated to be 25% for N_app numbers.

^bParameter was fixed.

^cN_app was estimated from relative peak heights in the Fourier transform.

^dThe N_app was estimated from noise level in the Fourier transform.