3KED

Crystal structure of Aminopeptidase N in complex with 2,4-diaminobutyric acid

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	298	2.0M malonic acid, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
3.53	65.14

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 120.601	α = 90
b = 120.601	β = 90
c = 170.479	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	KOHZU: Double Crystal Si(111)	2007-01-25	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.2.2	1.0	ALS	8.2.2

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	2.3	50	98	0.11	0.087	79.1	5.7	63115	63115

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	2.3	2.38	92.2		0.437	0.591	12.1	3.4	5880

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	2hpo	2.3	49.94	63115	61036	1908	97.58	0.15585	0.15449	0.19838	RANDOM	30.331

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]
0.63	0.31		0.63		-0.94

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.754
r_dihedral_angle_4_deg	21.406
r_dihedral_angle_3_deg	15.168
r_dihedral_angle_1_deg	6.44
r_scangle_it	6.078
r_scbond_it	3.857
r_mcangle_it	2.054
r_angle_refined_deg	1.997
r_mcbond_it	1.057
r_chiral_restr	0.126
r_bond_refined_d	0.024
r_gen_planes_refined	0.01

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6940
Nucleic Acid Atoms
Solvent Atoms	479
Heterogen Atoms	86

Software

Software
Software Name	Purpose
APEX	data collection
MOLREP	phasing
REFMAC	refinement
HKL-2000	data reduction
SCALEPACK	data scaling