2IAB | pdb_00002iab

Crystal structure of a protein with FMN-binding split barrel fold (NP_828636.1) from Streptomyces avermitilis at 2.00 A resolution

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION,SITTING DROP,NANODROP	5.6	277	20.0% iso-Propanol, 20.0% PEG-4000, 0.1M Citrate pH 5.6, VAPOR DIFFUSION,SITTING DROP,NANODROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.35	47.28

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 87.89	α = 90
b = 87.89	β = 90
c = 151.58	γ = 120

Symmetry
Space Group	P 65 2 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	MARMOSAIC 325 mm CCD	Flat collimating mirror, toroid focusing mirror	2006-06-18	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL9-2	0.91162,0.97936,0.97920	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	2	34.001	100	0.077	14.9	14		24072			31.69

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	2.05	100		0.688		12.3	1672

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	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	MAD	THROUGHOUT	2	34.001	24057	1196	99.87	0.18	0.18	0.178	0.1871	0.23	0.2372	RANDOM	32.924

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]
0.51	0.26		0.51		-0.77

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	28.587
r_dihedral_angle_4_deg	17.765
r_dihedral_angle_3_deg	13.724
r_dihedral_angle_1_deg	6.928
r_scangle_it	6.764
r_scbond_it	5.075
r_mcangle_it	3.19
r_mcbond_it	2.204
r_angle_refined_deg	1.636
r_angle_other_deg	0.891
r_mcbond_other	0.79
r_symmetry_vdw_other	0.32
r_symmetry_vdw_refined	0.224
r_nbd_refined	0.213
r_nbd_other	0.2
r_symmetry_hbond_refined	0.194
r_nbtor_refined	0.179
r_xyhbond_nbd_refined	0.142
r_chiral_restr	0.092
r_nbtor_other	0.086
r_bond_refined_d	0.018
r_gen_planes_refined	0.006
r_bond_other_d	0.002
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2302
Nucleic Acid Atoms
Solvent Atoms	234
Heterogen Atoms	16

Software

Software
Software Name	Purpose
MolProbity	model building
SOLVE	phasing
REFMAC	refinement
SCALEPACK	data scaling
PDB_EXTRACT	data extraction
DENZO	data reduction