2UXG | pdb_00002uxg

Pseudoazurin with engineered amicyanin ligand loop, reduced form, pH 5.5

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1BQK	PDB ENTRY 1BQK

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.5		HANGING DROP VAPOR DIFFUSION METHOD, 1 MICRO-LITER OF PROTEIN (20 MG/ML IN 100 MM MES, PH 5.5 PLUS 30 MM NACL) WAS MIXED WITH 1 MICO-L OF RESERVOIR SOLUTION (100 MM MES, PH 5.5 PLUS 2 M AMMONIUM SULFATE AND 2 M NACL). THE CRYSTALS WERE REDUCED BY ADDING 50 MM MERCAPTOETHANOL TO THE RESERVOIR SOLUTION AND BECAME COLORLESS AFTER 3 HOURS.

Crystal Properties
Matthews coefficient	Solvent content
2.09	40.8

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 105.355	α = 90
b = 105.355	β = 90
c = 56.487	γ = 120

Symmetry
Space Group	H 3 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	IMAGE PLATE	MARRESEARCH	CONFOCAL MAXFLUX FROM OSMIC	2007-01-09	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU200

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	1.98	50	95.6	0.06	18.5	7.1		8140		2

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	1.98	2.05	64.3		0.22	2.8	3.8

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	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)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1BQK	1.99	30	7756	384	97	0.163	0.16	0.19	0.23	0.25	RANDOM	40.41

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]
-1.95	-0.97		-1.95		2.92

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.22
r_dihedral_angle_3_deg	15.465
r_dihedral_angle_1_deg	6.263
r_dihedral_angle_4_deg	5.537
r_scangle_it	4.236
r_scbond_it	2.703
r_angle_refined_deg	1.556
r_mcangle_it	1.531
r_mcbond_it	1.005
r_symmetry_hbond_refined	0.417
r_nbtor_refined	0.309
r_xyhbond_nbd_refined	0.221
r_nbd_refined	0.209
r_symmetry_vdw_refined	0.189
r_chiral_restr	0.107
r_bond_refined_d	0.016
r_gen_planes_refined	0.006
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_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	903
Nucleic Acid Atoms
Solvent Atoms	110
Heterogen Atoms	8

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
SCALEPACK	data scaling
MOLREP	phasing