3MZW

HER2 extracelluar region with affinity matured 3-helix affibody ZHER2:342

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5	279	0.05M sodium chloride, 7.5% PEG3350, 0.1M ammonium acetate, VAPOR DIFFUSION, HANGING DROP, temperature 279K

Crystal Properties
Matthews coefficient	Solvent content
3.45	64.3

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 71.726	α = 90
b = 97.841	β = 90
c = 148.283	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	115	CCD	MARMOSAIC 325 mm CCD		2008-08-07	M	SINGLE WAVELENGTH
2	1	x-ray	115	CCD	MARMOSAIC 225 mm CCD		2008-09-18	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL11-1	0.98	SSRL	BL11-1
2	SYNCHROTRON	ESRF BEAMLINE ID23-2	0.87	ESRF	ID23-2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.9	40	96.7	0.09	13	3.9	22414	21673	-5	-2

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	1S78 and 1LP1	2.9	40	21673	21673	1333	96.69	0.20804	0.20397	0.27756	RANDOM	53.182

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]
-1.23			1.66		-0.43

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.717
r_dihedral_angle_4_deg	20.722
r_dihedral_angle_3_deg	19.539
r_dihedral_angle_1_deg	6.389
r_scangle_it	4.903
r_mcangle_it	4.858
r_scbond_it	3.117
r_mcbond_it	2.985
r_angle_refined_deg	1.359
r_nbtor_refined	0.311
r_nbd_refined	0.219
r_symmetry_vdw_refined	0.204
r_xyhbond_nbd_refined	0.155
r_chiral_restr	0.092
r_symmetry_hbond_refined	0.034
r_bond_refined_d	0.01
r_gen_planes_refined	0.003
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
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4817
Nucleic Acid Atoms
Solvent Atoms	9
Heterogen Atoms	56

Software

Software
Software Name	Purpose
PHASER	phasing
REFMAC	refinement
XDS	data reduction
XDS	data scaling