2B3S

structure of the DSBA mutant (P31G-C33A)

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1U3A

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.5	293	PEG 400, Hepes, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K, pH 7.50

Crystal Properties
Matthews coefficient	Solvent content
2.3	46.3

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 56.31	α = 90
b = 56.31	β = 90
c = 108.204	γ = 120

Symmetry
Space Group	P 32

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	ADSC	TOROIDAL MIRROR	2004-11-17	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID23-1		ESRF	ID23-1

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	1.96	14.82	98.9	0.057	13	2.8		27226		-3	36.9

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.96	2.07	98.8		0.433	2.5	2.8

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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1U3A	1.96	14.82	25798	1418	98.98	0.21598	0.21372	0.25685	RANDOM	31.26

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]
0.31	0.16		0.31		-0.47

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.658
r_dihedral_angle_3_deg	16.467
r_dihedral_angle_4_deg	11.966
r_dihedral_angle_1_deg	5.875
r_scangle_it	2.489
r_scbond_it	1.755
r_mcangle_it	1.276
r_angle_refined_deg	1.253
r_mcbond_it	1.144
r_angle_other_deg	0.811
r_xyhbond_nbd_refined	0.227
r_nbd_refined	0.206
r_xyhbond_nbd_other	0.204
r_symmetry_vdw_other	0.196
r_nbtor_refined	0.184
r_nbd_other	0.172
r_mcbond_other	0.168
r_symmetry_vdw_refined	0.151
r_nbtor_other	0.109
r_chiral_restr	0.074
r_bond_refined_d	0.012
r_gen_planes_refined	0.004
r_bond_other_d	0.001
r_gen_planes_other	0.001
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2938
Nucleic Acid Atoms
Solvent Atoms	220
Heterogen Atoms

Software

Software
Software Name	Purpose
MOSFLM	data reduction
SCALA	data scaling
MOLREP	phasing
REFMAC	refinement
CCP4	data scaling