Table1.

The symmetry analysis of SecA 2D crystal and SecA 2D crystal with SecB

	Original crystal		Crystal with SecB
Layer group	Phase resid.(No) v. other spots (90° random)		Phase resid.(No) v. other spots (90° random)
p1	20.1	68	22.7	58
p2	49.1	34	42.5′	29
p12_b	59.4	20	54.4	16
p12_a	59.1	19	64.7	17
p121_b	60.3	20	55.3	16
p121_a	41.7	19	47.7	17
c12_b	59.4	20	54.4	16
c12_a	59.1	19	64.7	17
p222	66.3	73	72.9	62
p2221b	52.6	73	50.3	62
p2221a	57	73	52	62
p22121	66.2	73	57.3	62
c222	66.3	73	72.9	62
p4	63.1	78	62.9	65
p422	62.3	171	66.6	140
p4212	63.3	171	59.4	140
p3	10.3*	56	36	46
p312	19.1*	130	45.2	110
p321	20.8*	135	40.2	113
p6	29.9′	146	42.4	121
p622	28.6′	299	45.1	252

^′Probable

^*Acceptable