2A1Y | pdb_00002a1y

Crystal Structure of GuaC-GMP complex from Bacillus anthracis at 2.26 A Resolution.

X-RAY DIFFRACTION

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Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	291	Ammonium sulphate, Bis-Tris, Pentaerythritol Ethoxylate, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
2.1	42.2

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 95.615	α = 90
b = 95.615	β = 90
c = 67.674	γ = 90

Symmetry
Space Group	I 4

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	ADSC QUANTUM 4	Rh coated Si mirror	2005-04-11	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SRS BEAMLINE PX9.6	0.87000	SRS	PX9.6

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	2.27	50	99.8	0.063	24.5	5	13969	13969

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	2.27	2.37	99.5		0.377	4.5	4.4	1391

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	1YPF	2.27	30.26	13179	13179	696	97.47	0.17123	0.17123	0.16721	0.19	0.24614	0.25	RANDOM	48.059

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]
-0.18			-0.18		0.37

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.758
r_dihedral_angle_3_deg	20.889
r_dihedral_angle_4_deg	14.766
r_dihedral_angle_1_deg	11.201
r_scangle_it	4.713
r_scbond_it	3.225
r_angle_refined_deg	2.254
r_mcangle_it	2.181
r_mcbond_it	1.284
r_nbtor_refined	0.324
r_symmetry_hbond_refined	0.294
r_nbd_refined	0.266
r_symmetry_vdw_refined	0.231
r_xyhbond_nbd_refined	0.2
r_chiral_restr	0.188
r_bond_refined_d	0.026
r_gen_planes_refined	0.01
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2332
Nucleic Acid Atoms
Solvent Atoms	174
Heterogen Atoms	24

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
SCALEPACK	data scaling
MOLREP	phasing