4FKH

Crystal structure of porcine aminopeptidase-N complexed with alanine

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.2	277	18% PEG3350, 200 mM lithium sulfate, 100 mM HEPES, pH 7.2, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
3.18	61.32

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 260.251	α = 90
b = 62.892	β = 100.38
c = 81.813	γ = 90

Symmetry
Space Group	C 1 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		CCD	ADSC QUANTUM 315			M	SINGLE WAVELENGTH
2	1	x-ray		CCD	ADSC QUANTUM 315			M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID		APS	19-ID
2	SYNCHROTRON	APS BEAMLINE 24-ID-E		APS	24-ID-E

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.05	50	96.2			82137	79027	2	2

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	MIRAD	THROUGHOUT	2.05	49.74	82009	74921	3942	96.09	0.13242	0.12943	0.18857	RANDOM	42.525

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]
-0.2		0.99	-0.21		0.22

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.031
r_sphericity_free	30.999
r_dihedral_angle_4_deg	14.468
r_sphericity_bonded	14.162
r_dihedral_angle_3_deg	12.743
r_dihedral_angle_1_deg	5.55
r_rigid_bond_restr	1.641
r_angle_refined_deg	1.151
r_chiral_restr	0.075
r_bond_refined_d	0.006
r_gen_planes_refined	0.005
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_it
r_mcbond_other
r_mcangle_it
r_scbond_it
r_scangle_it

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7241
Nucleic Acid Atoms
Solvent Atoms	1500
Heterogen Atoms	329

Software

Software
Software Name	Purpose
REFMAC	refinement
SOLVE	phasing
CNS	refinement
HKL-2000	data reduction
HKL-2000	data scaling
HKL-2000	data collection