3KLC

Crystal structure of hyperthermophilic nitrilase

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3KI8

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	292	33% PEG 550MME, 0.2M Mg(CH3COOH)2 and 0.2 TrisHCl. The crystal soaked with 1M KBr for ~1 minute, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 292K

Crystal Properties
Matthews coefficient	Solvent content
1.91	35.47

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 59.283	α = 90
b = 59.283	β = 90
c = 129.196	γ = 90

Symmetry
Space Group	P 41

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 225 mm CCD		2006-03-01	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	EMBL/DESY, HAMBURG BEAMLINE X12	0.91163, 0.91994, 0.88557	EMBL/DESY, HAMBURG	X12

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	1.76	50	85	0.058	0.058	32	6	37990	37990

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.76	1.79	30.1		0.431	0.431	2	2.1

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	3KI8	1.76	43.69	36004	35951	1940	85.89	0.15729	0.15534	0.19214	RANDOM	28.583

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]
-22.21			-22.21		44.43

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.635
r_dihedral_angle_4_deg	19.06
r_dihedral_angle_3_deg	15.89
r_dihedral_angle_1_deg	7.21
r_scangle_it	4.103
r_scbond_it	2.718
r_angle_refined_deg	1.793
r_mcangle_it	1.547
r_mcbond_it	0.943
r_chiral_restr	0.112
r_bond_refined_d	0.017
r_gen_planes_refined	0.009
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
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	4178
Nucleic Acid Atoms
Solvent Atoms	218
Heterogen Atoms	22

Software

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