1M16

Human Acidic Fibroblast Growth Factor. 141 Amino Acid Form with Amino Terminal His Tag and Leu 44 Replaced with Phe (L44F), Leu 73 Replaced with Val (L73V), Val 109 Replaced with Leu (V109L) and Cys 117 Replaced with Val (C117V).


X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 7.5
Temperature 298.0
Details sodium formate, ammonium sulfate, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 74.18 α = 90
b = 97.01 β = 90
c = 108.87 γ = 90
Symmetry
Space Group C 2 2 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 104
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE Canberra 13-element Germanium detector -- 2002-04-24
Diffraction Radiation
Monochromator Protocol
Double flat crystal monochromator with fixed exit geometry; Bragg angle range is 10 degrees - 37 degrees; or flat Si(111) and Si(220) crystals operated side-by-side, each 100 mm wide; sagitally focusing Si(111) crystals (magnification 0.23-0.40); high precision rotary energy scale; operates in high vacuum; located 16.5 meters from the source. SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X9B 0.92 NSLS X9B

Data Collection

Overall
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
1.7 20 94.3 0.047 -- -- 10.5 43517 41034 3.0 3.0 20.2
High Resolution Shell
Resolution (High) Resolution (Low) Percent Possible (All) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All)
1.7 1.76 90.5 0.497 -- 3.3 -- --

Refinement

Statistics
Structure Solution Method Refinement High Resolution Refinement Low Resolution Cut-off Sigma (I) Cut-off Sigma (F) Number of Reflections (All) Number of Reflections (Observed) Number of Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Factor (Observed) R-Work R-Free R-Free Selection Details
MOLECULAR REPLACEMENT 1.7 20.0 3.0 3.0 43517 39798 1236 94.3 -- 0.221 0.22 0.249 RANDOM
High Resolution Shell
Refinement method Shell Resolution (High) Shell Resolution (Low) # of Reflections (Observed) # of Reflections (R-Free) # of Reflections (R-Work) R-Factor (R-Work) R-Factor (R-Free) R-Factor (R-Free Error) Percent Reflections (Observed)
X Ray Diffraction 1.7 1.73 3531 110 -- 0.34 0.36 -- --
RMS Deviations
Key Refinement Restraint Deviation
t_dihedral_angle_d 11.1
t_angle_deg 1.5
t_bond_d 0.008
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2268
Nucleic Acid Atoms 0
Heterogen Atoms 10
Solvent Atoms 217

Software

Software
Software Name Purpose
HKL-2000 data collection
SCALEPACK data scaling
TNT refinement
HKL-2000 data reduction
TNT phasing