Experiment: 3ZHD

The crystal structure of single domain antibody 8-4 scaffold.

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		4.6		27% PEG4000, 0.1M SODIUM ACETATE, PH4.6, 0.2M AMMONIUM SULFATE

Crystal Properties
Matthews coefficient	Solvent content
2.23	44.79

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 87.079	α = 90
b = 87.079	β = 90
c = 55.738	γ = 120

Symmetry
Space Group	P 3 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	95				2012-07-06	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	PAL/PLS BEAMLINE 5C (4A)		PAL/PLS	5C (4A)

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	1.96	50	99.3	0.11	48.4	21.8		17772		1	15.86

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.96	1.99	86.7		0.42	10.8	17.4

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	1.962	34.312	1.36	17770	903	99.93	0.1806	0.1779	0.1741	0.2311	0.2262

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]
-0.2655			-0.2655		0.531

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	13.505
f_angle_d	1.266
f_chiral_restr	0.082
f_plane_restr	0.009
f_bond_d	0.008

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1778
Nucleic Acid Atoms
Solvent Atoms	283
Heterogen Atoms	5

Software

Software
Software Name	Purpose
PHENIX	refinement
HKL-2000	data reduction
HKL-2000	data scaling