1ZMH

Crystal structure of human neutrophil peptide 2, HNP-2 (variant Gly16-> D-Ala)

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1DEF	BASED ON MONOMER OF HNP-3 (PDB ENTRY 1DEF)

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		293	lithium sulfate, PEG8000, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.39	48.53

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 42.038	α = 90
b = 26.051	β = 105.79
c = 61.587	γ = 90

Symmetry
Space Group	P 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	100	CCD	MARRESEARCH		2004-06-10	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 22-BM	1.0000	APS	22-BM

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	1.48	50	95.6	0.038			20719	20719

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.48	1.55	65.3

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	BASED ON MONOMER OF HNP-3 (PDB ENTRY 1DEF)	1.5	19	19047	19047	1022	95.6	0.179	0.17921	0.17734	0.21252	RANDOM	26.748

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]
-0.12		-0.03	0.06		0.05

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	19.474
r_dihedral_angle_4_deg	17.172
r_dihedral_angle_3_deg	11.783
r_sphericity_free	9.97
r_dihedral_angle_1_deg	7.516
r_sphericity_bonded	5.673
r_scangle_it	4.267
r_mcangle_it	3.976
r_scbond_it	3.276
r_mcbond_it	2.945
r_rigid_bond_restr	2.467
r_angle_refined_deg	2.023
r_symmetry_hbond_refined	0.351
r_nbtor_refined	0.331
r_symmetry_vdw_refined	0.28
r_nbd_refined	0.245
r_xyhbond_nbd_refined	0.174
r_chiral_restr	0.141
r_bond_refined_d	0.02
r_gen_planes_refined	0.012
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	936
Nucleic Acid Atoms
Solvent Atoms	109
Heterogen Atoms	46

Software

Software
Software Name	Purpose
REFMAC	refinement
MAR345	data collection
SCALEPACK	data scaling
AMoRE	phasing