Experiment: 4HUT

Structure of ATP:co(I)rrinoid adenosyltransferase (CobA) from Salmonella enterica in complex with four and five-coordinate cob(II)alamin and ATP

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1G5R

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6	298	19.6% PEG4000, 320 mM NaCl, pH 6.0, vapor diffusion, hanging drop, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.43	49.34

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 59.862	α = 90
b = 74.223	β = 90
c = 92.396	γ = 90

Symmetry
Space Group	P 21 21 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	SBC-3		2011-04-25	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-BM	0.979	APS	19-BM

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	1.95	50	98.4	0.091	11.6	4.7	30567	30078		-3

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	1.95	1.98	99.8		0.732		4.8	1497

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	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	1G5R	1.95	29.87	30679	29962	1514	97.66	0.178	0.178	0.1752	0.1796	0.2315	0.2323	RANDOM	34.4362

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]
3.49			-0.41		-3.08

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.041
r_dihedral_angle_4_deg	19.946
r_dihedral_angle_3_deg	14.745
r_dihedral_angle_1_deg	6.004
r_angle_refined_deg	2.208
r_chiral_restr	0.147
r_bond_refined_d	0.02
r_gen_planes_refined	0.011

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2762
Nucleic Acid Atoms
Solvent Atoms	323
Heterogen Atoms	227

Software

Software
Software Name	Purpose
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-3000	data collection
HKL-3000	data reduction
MOLREP	phasing