2AH6

Crystal structure of a putative cobalamin adenosyltransferase (bh1595) from bacillus halodurans c-125 at 1.60 A resolution

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6.9	277	0.2M K2NO3, 20.0% PEG-3350, No Buffer pH 6.9 , VAPOR DIFFUSION,SITTING DROP,NANODROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.1	40.89

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 53.61	α = 90
b = 84.38	β = 90
c = 113.48	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	MARMOSAIC 325 mm CCD		2005-07-03	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL9-2		SSRL	BL9-2

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	1.6	50	99.8	0.063		3.7		68629

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	1.6	1.63		99.9	0.591		3.6

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 (All)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MR	THROUGHOUT	1RTY	1.6	29.02	65054	3503	99.8	0.152	0.15	0.179	RANDOM	30.31

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]
0.28			-0.68		0.4

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.916
r_dihedral_angle_4_deg	17.208
r_dihedral_angle_3_deg	11.839
r_scangle_it	6.381
r_dihedral_angle_1_deg	4.782
r_scbond_it	4.497
r_mcangle_it	2.823
r_mcbond_it	1.939
r_angle_refined_deg	1.498
r_angle_other_deg	0.874
r_mcbond_other	0.54
r_symmetry_vdw_other	0.251
r_nbd_refined	0.233
r_nbtor_refined	0.189
r_nbd_other	0.182
r_xyhbond_nbd_refined	0.155
r_symmetry_vdw_refined	0.151
r_symmetry_hbond_refined	0.14
r_chiral_restr	0.095
r_nbtor_other	0.081
r_bond_refined_d	0.015
r_gen_planes_refined	0.007
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3735
Nucleic Acid Atoms
Solvent Atoms	549
Heterogen Atoms	24

Software

Software
Software Name	Purpose
SCALEPACK	data scaling
PDB_EXTRACT	data extraction
HKL-2000	data reduction
PHASER	phasing
REFMAC	refinement