Table 4. Edge-to-edge distance (Å) of exterior keto-γ-carotenes (KγC_ext) to light harvesting (LH)-bound B800/B880s in the native reaction center-LH (nRC-LH) complex from R. castenholzii.

nRC-LH	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
B800	–	3.7	3.4	3.9	3.8	3.8	3.7	3.3	3.5	3.2	3.3	3.4	3.5	3.5	4.2
B880	–	4.8	5.0	5.0	5.0	4.1	4.2	4.3	4.8	4.8	5.1	4.7	4.2	4.8	4.6