Table 1 Data collection and refinement statistics for crystal structures of apo-Tr and biotin–Tr

The values in parentheses are for the highest-resolution shell. n/a, not applicable.

Apo-Tr (PDB code 2Y3E)Biotin–Tr (PDB code 2Y3F)
Data collection
 Space groupI 41P 42 21 2
 Cell dimensions
  a, b, c (Å)57.59, 57.59, 183.3557.34, 57.34, 77.55
  α, β, γ (°)90.00, 90.00, 90.0090.00, 90.00, 90.00
  Resolution (Å)27.47–1.45 (1.53–1.45)38.78–1.49 (1.57–1.49)
  Rmerge0.052 (0.619)0.069 (0.085)
  II13.6 (2.0)26.0 (19.6)
  Completeness (%)97.8 (87.1)100.0 (100.0)
  Multiplicity3.6 (3.2)7.0 (7.1)
Refinement
 Resolution (Å)27.47–1.4532.12–1.49
 No. reflections4888421581
Rwork/Rfree0.134/0.1780.135/0.152
 No. atoms
  Protein1855954
  Biotinn/a16
  Glycerol1818
  Water321142
B factors (mean of all atoms, Å2)
  Protein33.4110.10
  Biotinn/a5.83
  Glycerol44.1428.31
  Water38.1927.92
 Rmsd
  Bond length (Å)0.0050.009
  Bond angle (°)0.931.48
 Twinning
  Twin operator−h, k, −ln/a
  Twin fraction0.497n/a