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Table 4 Processing and refinement statistics

From: A silent H-bond can be mutationally activated for high-affinity interaction of BMP-2 and activin type IIB receptor

Data processing

ternary complex 1:1:1

ternary complex 1:2:2

Space group

P212121

P3221

Unit cell

a = 64.1 Ã…, b = 65.4 Ã…, c = 114.1 Ã…

α = β = γ = 90°

a = b = 82.8 Ã…, c = 111.1 Ã…

α = β = 90°, γ = 120°

Resolution (Ã…)

20.0–1.81 Å (1.89–1.81 Å)

41.4–1.78 Å (1.84–1.78 Å)

Wavelength

1.5418 Ã…

1.5418 Ã…

Number of measured reflectionsc

134179 (11577)

282925 (18238)

Number of unique reflectionsc

43615 (4532)

42606 (4140)

Completeness

98.6 (93.7)%

99.6 (98.7)%

Multiplicity

2.9 (2.6)

6.6 (4.4)

Rsym for all reflections

5.5 (38.9)%

6.9 (51.4)%

<Intensity/σ>

9.6 (2.5)

12.6 (2.6)

Refinement statistics

Resolution

20–1.85 Å (1.92–1.85 Å)

40–1.92 Å (1.99–1.92 Å)

Rcryst

21.6 (36.7)%

22.8 (42.5)%

Rfree (Test set 5%)

22.5 (41.3)%

26.4 (42.5)%

r.m.s. deviation

  

   Bonds

0.013 Ã…

0.006 Ã…

   Angles

1.572°

1.249°

   Torsion angles

1.084°

0.794°

Average B-Factor

38.7 Ã…2

52.4 Ã…2

Cross-validated sigma coordinate error

0.37 Ã…

0.45 Ã…

Solvent content

52.8%

60.9%

Procheck analysisd

Residues in most favored region

86.4% (291)

86.2% (219)

Residues in additional allowed region

11.9% (40)

13.0% (33)

Residues in generously allowed region

1.8% (6)

0.8% (2)

Residues in disallowed region

0% (0)

0% (0)

  1. Statistical analysis for the highest resolution shell is shown in parentheses.
  2. a) BMP-2:BMPR-IAECD:ActR-IIBECD complex
  3. b) BMP-2L100K/N102D:(BMPR-IAECD)2:(ActR-IIBECD)2 complex
  4. c) cut-off for reflections F > 0σ
  5. d) number of residues is shown in parentheses