4ED4

Crystal structure of IspE (4-diphosphocytidyl-2-C-methyl-D-erythritol kinase) from Mycobacterium abcessus, bound to ATP

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	4DXL	PDB ENTRY 4DXL

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	4.6	290	Internal tracking number 231560F1, CSHT screen condition F1: 0.2 M ammonium sulfate, 0.1 M sodium acetate trihydrate, pH 4.6, 30% PEG2000 MME, MyabA.00725.a.A1 PW30213 at 29.3 mg/mL in 25 mM HEPES, pH 7.0, 500 mM sodium chloride, 2 mM DTT, 0.025% sodium azide, 5% glycerol, 2 mM ATP, 2 mM EBSI1799, cryoprotectant: Al's oil, VAPOR DIFFUSION, SITTING DROP, temperature 290K

Crystal Properties
Matthews coefficient	Solvent content
2.06	40.43

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 46.45	α = 90
b = 53.36	β = 90
c = 109.11	γ = 90

Symmetry
Space Group	P 21 2 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD	RIGAKU SATURN 944+		2012-03-23	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU FR-E SUPERBRIGHT	1.541780

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	1.75	42.738	95.7	0.047	31.98	9.2		26899		-3	20.012

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.75	1.8	84.2		0.143	10.8	5.85

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 4DXL	1.75	42.738	26898	1370	95.6	0.169	0.166	0.17	0.213	0.22	RANDOM	14.343

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]
-0.04			-0.3		0.34

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.926
r_dihedral_angle_4_deg	15.52
r_dihedral_angle_3_deg	11.958
r_dihedral_angle_1_deg	7.133
r_angle_refined_deg	1.535
r_angle_other_deg	0.864
r_chiral_restr	0.088
r_bond_refined_d	0.016
r_gen_planes_refined	0.009
r_bond_other_d	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2134
Nucleic Acid Atoms
Solvent Atoms	245
Heterogen Atoms	31

Software

Software
Software Name	Purpose
XSCALE	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
XDS	data reduction
PHASER	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.