1VL7

Crystal structure of a putative heme oxygenase (alr5027) from nostoc sp. pcc 7120 at 1.50 A resolution

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1G76

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION,SITTING DROP,NANODROP		293	0.04M Tris_base, 0.06M Tris Cl, 23% PEG MME 5000 , VAPOR DIFFUSION,SITTING DROP,NANODROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.2	43.74

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 65.001	α = 90
b = 100.326	β = 90
c = 47.667	γ = 90

Symmetry
Space Group	P 21 21 2

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		2004-04-02	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.3.1		ALS	8.3.1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym 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	1.5	43.05	99.64	0.048	30.31	4.68		50714			25.18

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.5	1.55	97.62		0.68	1.6	3.88	4884

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	1g76	1.5	43.05	48092	2570	99.53	0.15589	0.15443	0.16	0.18276	0.19	RANDOM	23.707

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]
0.13			0.97		-1.09

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	39.066
r_dihedral_angle_4_deg	19.922
r_dihedral_angle_3_deg	12.654
r_dihedral_angle_1_deg	6.672
r_scangle_it	6.555
r_scbond_it	4.724
r_mcangle_it	3.07
r_mcbond_it	2.468
r_angle_refined_deg	1.749
r_angle_other_deg	0.874
r_mcbond_other	0.579
r_symmetry_vdw_refined	0.223
r_nbd_refined	0.22
r_nbd_other	0.189
r_symmetry_vdw_other	0.185
r_symmetry_hbond_refined	0.183
r_xyhbond_nbd_refined	0.144
r_chiral_restr	0.112
r_nbtor_other	0.087
r_bond_refined_d	0.018
r_gen_planes_refined	0.008
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2139
Nucleic Acid Atoms
Solvent Atoms	269
Heterogen Atoms	32

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
MOLREP	phasing
REFMAC	refinement