2PM1

Derivative of human alpha-defensin 1 (HNP1)

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	293	0.2 M sodium citrate, 0.1 M HEPES, 20 (v/v/) iso-Propanol, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.09	41.17

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 38.811	α = 90
b = 38.811	β = 90
c = 31.56	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		CCD	MARMOSAIC 300 mm CCD	mirrors	2007-03-10	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 22-BM	0.96	APS	22-BM

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	1.6	30	98.4	0.077	0.077	16.7	3.7	3787	3787		-3

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)
	1.6	1.66	98.7		0.405	0.405	2.8	3.6	374

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1DFN	1.6	20	3787	3602	168	98.51	0.15363	0.15363	0.15128	0.20087	RANDOM	24.406

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]
-0.07	-0.03		-0.07		0.1

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	12.376
r_dihedral_angle_3_deg	11.931
r_dihedral_angle_1_deg	8.449
r_dihedral_angle_4_deg	7.623
r_sphericity_free	6.687
r_sphericity_bonded	4.295
r_scangle_it	4.149
r_scbond_it	3.92
r_rigid_bond_restr	3.464
r_mcangle_it	2.686
r_angle_refined_deg	1.959
r_mcbond_it	1.725
r_chiral_restr	0.656
r_symmetry_hbond_refined	0.378
r_nbtor_refined	0.307
r_symmetry_vdw_refined	0.283
r_xyhbond_nbd_refined	0.242
r_nbd_refined	0.227
r_bond_refined_d	0.019
r_gen_planes_refined	0.01
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	226
Nucleic Acid Atoms
Solvent Atoms	53
Heterogen Atoms

Software

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