Table 2 Cryo-EM data collection, refinement and validation statistics

From: High resolution cryo-EM and crystallographic snapshots of the actinobacterial two-in-one 2-oxoglutarate dehydrogenase

Dataset

OdhA

OdhA-CoASH

OdhA-succinyl-CoA

OdhA-SP

OdhA-OdhI

Data collection and processing

Grid type

UltrAuFoil300 mesh R1.2/1.3

UltrAuFoil300 mesh R1.2/1.3

UltrAuFoil300 mesh R1.2/1.3

Lacey 200mesh

Lacey 200mesh

Plunge freezer

Vitrobot

Vitrobot

Vitrobot

Vitrobot

Vitrobot

Microscope

Krios

Krios

Krios

Krios

Krios

Magnification

105000

105000

105000

105000

105000

Voltage (kV)

300

300

300

300

300

Energy filter(eV)

20

20

20

20

20

Camera

K3

K3

K3

K3

K3

Detector mode

Counted

Counted

Super-resolution

Counted

Counted

Electron exposure (e–/Å2)

40

40

48

40

40

Defocus range (μm)

−0.8 to −2.0

−0.8 to −2.0

−0.8 to −2.0

−0.8 to −2.2

−0.8 to −2.2

Pixel size (Å)

0.86

0.86

0.84

0.86

0.86

Micrographs

13348

12202

11827

16647

19443

No. of fractions

40

40

50

60

40

Symmetry imposed

D3

D3

D3

D3

D3

Initial particle images (no.)

6571029

3392043

3827956

2599031

3177955

Final particle images (no.)

1474608

1849406

1074837

646352

958690

Map resolution (Å)a

2.17

2.17

2.07

2.26

2.29

 FSC threshold

0.143

0.143

0.143

0.143

0.143

Map resolution range (Å)

1.9–4.4

1.9–4.5

1.9–4.7

2.0–4.6

2.0–6.0

Refinement and validation

Model-map resolution (Å)b

2.3

2.2

2.2

2.3

2.3

 FSC threshold

0.5

0.5

0.5

0.5

0.5

Map sharpening B factor (Å2)

−84.4

−88.5

−74.2

−87.3

−93.3

Model composition

 No. Atoms (non-H)

52590

52878

54248

52656

55346

 Protein residues

6714

6714

6726

6714

 

7110

 Ligands

18

24

24

18

 

12

 Water molecules

1280

 

Average B factors (Å2)

 Protein

45.28

43.41

67.11

45.07

47.22

 Ligands

56.18

57.52

83.72

56.28

123.89

R.m.s. deviationsb

 Bond lengths (Å)

0.010

0.010

0.006

0.008

0.013

 Bond angles (°)

1.247

1.229

1.032

1.121

1.810

Validationb

 MolProbity score

1.00

1.02

1.08

0.88

0.90

 Clashscore

1.05

1.25

1.82

0.77

0.66

 Poor rotamers (%)

0.42

0.31

0.53

0.11

0.21

Ramachandran plotb

 Favored (%)

96.82

97.02

97.26

97.24

96.87

 Allowed (%)

3.18

2.97

2.74

2.67

3.13

 Outliers (%)

0.00

0.01

0.00

0.09

0.00

PDB accession code

8P5T

8P5U

8P5V

8P5W

8P5X

EMDB accession code

EMD-17452

EMD-17453

EMD-17454

EMD-17455

EMD-17456

  1. aResolution estimates from cryoSPARC (version v3.2.0)61.
  2. bValues from MOLPROBITY58 and the PHENIX59 EM validation tools.