2RFH | pdb_00002rfh

Crystal Structure Analysis of CPA-2-benzyl-3-nitropropanoic acid complex

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	soaking	7.5	277	LiCl, Tris, pH 7.5, soaking, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
1.87	34.27

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 42.297	α = 90
b = 62.698	β = 96.99
c = 48.974	γ = 90

Symmetry
Space Group	P 1 21 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	IMAGE PLATE	RIGAKU RAXIS IV++	confocal	2007-04-16	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU MICROMAX-007	1.5418

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	1.7	38.42	98.7	0.045	30.2	7.16		27657

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)
	1.7	1.76	97.5		0.089	14.9	6.7	2720

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 (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	1.7	20	27623	1392	98.6	0.195	0.193	0.1911	0.227	0.2276	RANDOM	10.8

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]
0.05		0.08	0.32		-0.36

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.771
r_dihedral_angle_4_deg	15.723
r_dihedral_angle_3_deg	14.1
r_dihedral_angle_1_deg	5.609
r_scangle_it	2.656
r_scbond_it	1.992
r_angle_refined_deg	1.362
r_mcangle_it	1.229
r_mcbond_it	0.757
r_nbtor_refined	0.314
r_symmetry_vdw_refined	0.278
r_nbd_refined	0.212
r_symmetry_hbond_refined	0.119
r_xyhbond_nbd_refined	0.116
r_chiral_restr	0.098
r_bond_refined_d	0.013
r_gen_planes_refined	0.006
r_metal_ion_refined	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2436
Nucleic Acid Atoms
Solvent Atoms	198
Heterogen Atoms	16

Software

Software
Software Name	Purpose
d*TREK	data scaling
CNS	refinement
PDB_EXTRACT	data extraction
HKL-2000	data reduction
SCALA	data scaling
CCP4	phasing
REFMAC	refinement