Experiment: 3FIL

Structural and energetic determinants for hyperstable variants of GB1 obtained from in-vitro evolution

X-RAY DIFFRACTION

Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.6	293.15	protein solution: 50mM sodium acetate pH 5.6, 50mg/ml protein. reservoir solution: 25% PEG 3350, 0.1M citric acids pH 3.5. Drop 400nl protein solution & 400nl reservoir solution, 80 micro-l reservoir, VAPOR DIFFUSION, HANGING DROP, temperature 293.15K

Crystal Properties
Matthews coefficient	Solvent content
1.93	39.4

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 29.694	α = 90
b = 38.93	β = 90
c = 83.326	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	110	CCD	RAYONIX MX-225	Mirror 1: Silicon, active surface 50nm Rh-coated. Mirror 2: Glas, active surface 50 nm Rh-coated.	2006-03-06	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	BESSY BEAMLINE 14.2	0.88561	BESSY	14.2

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	0.842	19.466	97.3	0.074	0.063	13.26	7.08	87156	86548			11.564

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)
	0.84	0.98	84.8		0.481	0.775	2.56	5.82	9687

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R	PDB ENTRY 1PGA	0.88	19.466	77514	76999		99.3	0.125	0.1239	0.1231	0.1493	0.1464	RANDOM

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]

Coordinate Error
Structure Solution Method	Refinement High Resolution	Refinement Low Resolution
17	853	1102.25

RMS Deviations
Key	Refinement Restraint Deviation
s_non_zero_chiral_vol	0.086
s_approx_iso_adps	0.083
s_zero_chiral_vol	0.075
s_anti_bump_dis_restr	0.071
s_similar_adp_cmpnt	0.037
s_from_restr_planes	0.0302
s_angle_d	0.027
s_bond_d	0.013
s_rigid_bond_adp_cmpnt	0.006
s_similar_dist

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	939
Nucleic Acid Atoms
Solvent Atoms	245
Heterogen Atoms	1

Software

Software
Software Name	Purpose
MAR345	data collection
AMoRE	phasing
SHELXL-97	refinement
XDS	data reduction
XSCALE	data scaling