Table 1 Crystallographic data collection and refinement statistics

From: Structural insights into chaperone addiction of toxin-antitoxin systems

 

Mtb-SecBTA/HigA1(104–116)

PDB code 5MTW

Data collection

Diffraction source

ESRF ID29

Space group

P212121

Unit cell a, b, c (Å)

86.86, 89.96, 91.34

Unit cell α, β, γ (°)

90.00, 90.00, 90.00

Resolution range (Å)

64.09–1.835 (1.867–1.835)a

No. of unique reflections

63,188 (3135)

Completeness (%)

99.9 (99.6)

Redundancy

6.5 (6.7)

I/σI

13.7 (2.3)

R merge

0.093 (0.796)

CC1/2

0.999 (0.338)

Refinement

Resolution range (Å)

64.09–1.835 (1.883–1.835)a

No. of reflections (work/test)

59,790/3397 (4325/275)

No. of molecules/AUb

1 Mtb-SecBTA tetramer + 3 bound Mtb-HigA1(104–116) peptides

Rwork/Rfree

0.212/0.265 (0.330/0.354)

Chain/no. of residues/missing residues

A/138/1–8, 43–44, 82–96, 164–181

 

B/138/1–5, 43–46, 81–96, 164–181

 

C/138/1–12, 82–94, 114–116, 167–181

 

D/136/1–9, 81–95, 114–115, 163–181

 

E/12/116

 

F/12/116

 

G/12/116

No. of nonhydrogen atoms

  All atoms

4660

  Protein atoms

4282

  Peptide atoms

318

  Other ligands

8

  Ions

3

  Water molecules

49

Average B-factors (Å 2 )

  All atoms

34.7

  Protein atoms

34.3

  Peptide atoms

39.7

  Other ligands

63.5

  Ions

45.7

  Water molecules

32.6

RMS deviations

  Bond lengths (Å)

0.019

  Bond angles (°)

1.941

Ramachandran plot (%)

  Most favored regions

93.9

  Allowed/disallowed

6.1/0.0

  1. aValues in brackets are for the highest-resolution shell.
  2. bAsymmetric unit.