Table 11.2

Reaction center structures (excluding Rb. sphaeroides RC variants)a

PDB IDRemarks (if any)Crystal formbHigh-resolution limit (Å)Rcrystc (%)Rfreed (%)nobs/npareReference
Blastochloris viridis 
1DXR His L168 → Phe variant; terbutryn complex 2.00 19.4 21.8 4.44 [41] 
1VRN  2.20 19.1 21.2 2.78 [135] 
2JBL Stigmatellin complex (replaces 4PRC) 2.40 19.0 20.6 2.46 [155] 
6PRC Triazine DG-420314 complex 2.30 18.4 22.5 2.43 [58] 
1PRC  2.30 19.3 n/a 2.38 [40] 
5PRC Atrazine complex 2.35 19.0 23.6 2.20 [58] 
3PRC QB-depleted 2.40 17.8 21.5 2.07 [66] 
2PRC Ubiquinone-2 complex 2.45 18.2 22.9 1.89 [66] 
4PRC Stigmatellin complex 2.40 19.1 24.1 1.82 [66] 
7PRC Triazine DG-420315 complex 2.65 18.4 23.1 1.73 [58] 
1R2C  2.86 20.2 22.8 1.58 [156] 
        
Rhodobacter sphaeroides 
1RG5 Carotenoidless RC 2.50 15.5 18.2 2.51 [157] 
1M3X  2.55 18.5 20.9 2.34 [158] 
1AIJ Ground state 2.20 21.6 27.0 1.95 [50] 
1PCR  2.65 18.6 n/a 1.91 [55] 
1RQK Carotenoidless RC reconstituted with 3,4-dihydrospheroidene 2.70 16.4 19.4 1.82 [157] 
1OGV Lipid cubic phase crystal 2.35 21.4 24.4 1.74 [52] 
1DV6 Zn2+-complex; ground state 2.50 23.8 26.5 1.65 [92] 
1DV3 Cd2+-complex; charge-separated state 2.50 22.6 25.2 1.61 [92] 
1DS8 Cd2+-complex; ground state 2.50 22.7 25.6 1.61 [92] 
1L9B Cytochrome c2-RC complex 2.40 22.0 26.4 1.55 [153] 
1RGN Carotenoidless RC reconstituted with spheroidene 2.80 19.1 23.2 1.48 [157] 
2BNS Lipid cubic phase crystal; charge-separated state 2.50 21.1 24.7 1.41 [136] 
1AIG Charge-separated state 2.60 21.5 29.9 1.26 [50] 
2BNP Lipid cubic phase crystal; ground state 2.70 21.2 24.9 1.16 [136] 
1K6L  3.10 19.3 19.4 1.08 [28] 
4RCR  2.80 22.7 n/a 0.81 [159,160,161] 
1PSS  3.00 22.3 n/a 0.79 [109] 
1L9J Cytochrome c2-RC complex 3.25 24.8 28.7 0.77 [153] 
1YST  3.00 23.4 n/a 0.69 [162] 
2RCR  3.10 22.0 n/a 0.64 [163] 
1Z9K  4.60 33.0 33.0 0.57 [152] 
        
Thermochromatium tepidum 
1EYS  2.20 23.1 28.7 2.37 [54] 
        
Rhodopseudomonas palustris 
1PYH RC-LH1 core complex 4.80 46.9 49.1 n/a [154] 
PDB IDRemarks (if any)Crystal formbHigh-resolution limit (Å)Rcrystc (%)Rfreed (%)nobs/npareReference
Blastochloris viridis 
1DXR His L168 → Phe variant; terbutryn complex 2.00 19.4 21.8 4.44 [41] 
1VRN  2.20 19.1 21.2 2.78 [135] 
2JBL Stigmatellin complex (replaces 4PRC) 2.40 19.0 20.6 2.46 [155] 
6PRC Triazine DG-420314 complex 2.30 18.4 22.5 2.43 [58] 
1PRC  2.30 19.3 n/a 2.38 [40] 
5PRC Atrazine complex 2.35 19.0 23.6 2.20 [58] 
3PRC QB-depleted 2.40 17.8 21.5 2.07 [66] 
2PRC Ubiquinone-2 complex 2.45 18.2 22.9 1.89 [66] 
4PRC Stigmatellin complex 2.40 19.1 24.1 1.82 [66] 
7PRC Triazine DG-420315 complex 2.65 18.4 23.1 1.73 [58] 
1R2C  2.86 20.2 22.8 1.58 [156] 
        
Rhodobacter sphaeroides 
1RG5 Carotenoidless RC 2.50 15.5 18.2 2.51 [157] 
1M3X  2.55 18.5 20.9 2.34 [158] 
1AIJ Ground state 2.20 21.6 27.0 1.95 [50] 
1PCR  2.65 18.6 n/a 1.91 [55] 
1RQK Carotenoidless RC reconstituted with 3,4-dihydrospheroidene 2.70 16.4 19.4 1.82 [157] 
1OGV Lipid cubic phase crystal 2.35 21.4 24.4 1.74 [52] 
1DV6 Zn2+-complex; ground state 2.50 23.8 26.5 1.65 [92] 
1DV3 Cd2+-complex; charge-separated state 2.50 22.6 25.2 1.61 [92] 
1DS8 Cd2+-complex; ground state 2.50 22.7 25.6 1.61 [92] 
1L9B Cytochrome c2-RC complex 2.40 22.0 26.4 1.55 [153] 
1RGN Carotenoidless RC reconstituted with spheroidene 2.80 19.1 23.2 1.48 [157] 
2BNS Lipid cubic phase crystal; charge-separated state 2.50 21.1 24.7 1.41 [136] 
1AIG Charge-separated state 2.60 21.5 29.9 1.26 [50] 
2BNP Lipid cubic phase crystal; ground state 2.70 21.2 24.9 1.16 [136] 
1K6L  3.10 19.3 19.4 1.08 [28] 
4RCR  2.80 22.7 n/a 0.81 [159,160,161] 
1PSS  3.00 22.3 n/a 0.79 [109] 
1L9J Cytochrome c2-RC complex 3.25 24.8 28.7 0.77 [153] 
1YST  3.00 23.4 n/a 0.69 [162] 
2RCR  3.10 22.0 n/a 0.64 [163] 
1Z9K  4.60 33.0 33.0 0.57 [152] 
        
Thermochromatium tepidum 
1EYS  2.20 23.1 28.7 2.37 [54] 
        
Rhodopseudomonas palustris 
1PYH RC-LH1 core complex 4.80 46.9 49.1 n/a [154] 
a

Continuously updated versions of Tables 1–3 will be provided online at http://www.mpibp-frankfurt.mpg.de/lancaster/rc/

b

As defined in Table 1.

c

Rcryst = Σ(hkl) ||Fo|–|Fc||/Σ(hkl)|Fo|. Statistics are quoted as supplied with the PDB entries and are not necessarily consistent with the respective publications.

d

Rfree = Σ(hkl) ∈T ||Fo|–|Fc||/Σ(hkl) ∈T |Fo|, where T is the test set [164].

e

nobs = number of observed unique reflections used in the working set; npar = number of parameters necessary to define the model; this includes three to four parameters (x, y, z coordinates, plus an isotropic atomic B factor, where applicable) per atom.

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