3QJX

Crystal Structure of E. coli Aminopeptidase N in complex with L-Serine

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	298	1.8M Sodium Malonate, L-serine, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
3.51	64.99

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 120.23	α = 90
b = 120.23	β = 90
c = 170.801	γ = 120

Symmetry
Space Group	P 31 2 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	CCD	ADSC QUANTUM 315	mirrors	2007-05-05	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.2.2	1.0000	ALS	8.2.2

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	1.45	35.74	99.9	0.062	13.9	5.4	251190	244035	1	1

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	1.45	1.53	99.8		0.537	2.8	5.5	36315

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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1.45	35.74	244035	7641	99.91	0.12108	0.12027	0.14709	RANDOM	15.237

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]
0.02	0.01		0.02		-0.03

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.82
r_dihedral_angle_4_deg	20.081
r_dihedral_angle_3_deg	13.09
r_scangle_it	8.322
r_dihedral_angle_1_deg	6.03
r_scbond_it	5.849
r_mcangle_it	3.788
r_rigid_bond_restr	3.306
r_mcbond_it	2.695
r_angle_refined_deg	2.601
r_chiral_restr	0.193
r_bond_refined_d	0.032
r_gen_planes_refined	0.015

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6940
Nucleic Acid Atoms
Solvent Atoms	922
Heterogen Atoms	96

Software

Software
Software Name	Purpose
ADSC	data collection
MOLREP	phasing
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling