2HX9

Crystal structure of Cu(I) Azurin with the metal-binding loop sequence "CTFPGHSALM" replaced with "CSPHQGAGM", at pH4

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5	293	29-31% PEG 4000, 100mM magnesium chloride, 100mM Sodium acetate. Crystal soaked in pH4 buffer and ascorbate following growth, pH 5, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.21	44.41

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 38.42	α = 90
b = 65.335	β = 90
c = 97.242	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	93	IMAGE PLATE	RIGAKU RAXIS IV	Osmic "blue"	2006-03-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU	1.542

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	1.7	54.233	99.9	0.053	0.053	10.3	5.1		27616			20

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)
	1.7	1.79	100		0.293	0.293	2.6	4.9	3968

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	Direct use of Oxidised structure in same crystal form	THROUGHOUT	1.7	33	27572	27572	1378	99.7	0.172	0.172	0.17	0.218	RANDOM	18.514

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]
-0.06			-1		1.06

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.25
r_dihedral_angle_3_deg	13.64
r_dihedral_angle_4_deg	10.286
r_dihedral_angle_1_deg	6.333
r_scangle_it	3.467
r_scbond_it	2.294
r_mcangle_it	1.558
r_angle_refined_deg	1.548
r_mcbond_it	1.007
r_nbtor_refined	0.298

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.25
r_dihedral_angle_3_deg	13.64
r_dihedral_angle_4_deg	10.286
r_dihedral_angle_1_deg	6.333
r_scangle_it	3.467
r_scbond_it	2.294
r_mcangle_it	1.558
r_angle_refined_deg	1.548
r_mcbond_it	1.007
r_nbtor_refined	0.298
r_nbd_refined	0.208
r_xyhbond_nbd_refined	0.164
r_symmetry_hbond_refined	0.142
r_symmetry_vdw_refined	0.138
r_chiral_restr	0.11
r_bond_refined_d	0.017
r_gen_planes_refined	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1894
Nucleic Acid Atoms
Solvent Atoms	408
Heterogen Atoms	2

Software

Software
Software Name	Purpose
SCALA	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
CrystalClear	data collection
MOSFLM	data reduction
CCP4	data scaling

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.