Table 1.

Data collection and refinement statistics

Data collection
    Beamline9.1, SSRL, Menlo Park, CA
    Wavelength, Å0.979
    Space groupP1
    Cell dimensionsa = 52.7 Å, b = 59.5 Å, c = 59.7 Å α = 76.4°, β = 74.9°, γ = 64.1°
    Resolution range, Å45.10–1.90
    Total reflections166,560
    Unique reflections46,289
    Redundancy3.6 (3.5)*
    Completeness, %94.1 (85.5)*
    Mean I8.4 (1.5)*
    Rsym, %5.7 (48.5)*
Refinement
    Resolution range, Å45.10–1.90
    No. of reflections used46,278
    Rwork/Rfree, %24.7/26.5
    Rmsd bonds, Å0.012
    Rmsd angles, °1.35
    No. of atoms/avg. B, Å2
    Protein3,925/44.2
        Waters62/53.2
        Retinal40/33.4
        Salinixanthin140/73.0
        Lipids250/67.4
    Ramachandran plot (favored/allowed/generously allowed), %96.3/3.7/0
  • *Values in parentheses are for the highest-resolution shell.

  • Rfree based on a test set size of 4.7%.

  • PROCHECK