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139555
Biological Macromolecular Structures Enabling Breakthroughs in Research and Education
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Structure Summary
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Annotations
Sequence
Sequence Similarity
Structure Similarity
Experiment
1G6X
ULTRA HIGH RESOLUTION STRUCTURE OF BOVINE PANCREATIC TRYPSIN INHIBITOR (BPTI) MUTANT WITH ALTERED BINDING LOOP SEQUENCE
Display Files
FASTA Sequence
PDB File
PDB File (Header)
mmCIF File
mmCIF File (Header)
PDBML/XML File
PDBML/XML File (Header)
Download Files
FASTA Sequence
PDB File (Text)
PDB File (gz)
PDBx/mmCIF File
PDBx/mmCIF File (gz)
PDBML/XML File
PDBML/XML File (gz)
Structure Factor (Text)
Structure Factor (gz)
Biological Assembly 1 (gz) (A+S)
Biological Assembly 2 (gz) (S)
X-RAY DIFFRACTION Experimental Data & Validation
X-ray Experimental Help
Crystallization
Crystalization Experiments
Method
Vapor Diffusion Hanging Drop
pH
7.5
Temperature
292.0
Details
2% PEG 400, 2 M AMMONIUM SULFATE, 0.1 M NA HEPES. A PROTEIN SAMPLE, LYOPHILIZED AFTER HPLC PURIFICATION FROM TFA/ACETONITRILE MIXTURE, WAS DISSOLVED IN WATER TO A CONCENTRATION OF 9 MG/2 UL DROPS OF THE PROTEIN SOLUTION WERE MIXED WITH 2 UL OF RESERVOIR SOLUTION CONTAINING 2% PEG 400, 2 M AMMONIUM SULFATE AND 0.1 M NA HEPES, PH 7.5. THE HANGING DROPLETS WERE EQUILIBRATED AT 19 DEG C THROUGH THE GAS PHASE WITH THE RESERVOIR. PRISMATIC CRYSTALS MEASURING UP TO 0.4 MM GREW WITHIN 12 HOURS. FOR LOW-TEMPERATURE DATA COLLECTION (100 K), THE CRYSTAL WAS CRYOPROTECTED IN THE RESERVOIR SOLUTION SUPPLEMENTED BY 30 % ETHYLENE GLYCOL., VAPOR DIFFUSION, HANGING DROP, temperature 292K
Crystal Data
Unit Cell
Length (Å)
Angle (°)
a = 51.89
α = 90
b = 51.89
β = 90
c = 43.03
γ = 90
Symmetry
Space Group
P 43 21 2
Diffraction
Diffraction Experiment
ID #
Data Collection Temperature
1
100
Diffraction Detector
Detector
Diffraction Type
Details
Collection Date
IMAGE PLATE
MARRESEARCH
--
1999-07-07
Diffraction Radiation
Monochromator
Protocol
SI
SINGLE WAVELENGTH
Diffraction Detector Source
Source
Type
Wavelength List
Synchrotron Site
Beamline
SYNCHROTRON
EMBL/DESY, HAMBURG BEAMLINE X11
--
EMBL/DESY, Hamburg
X11
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
0.86
20
94.9
0.036
--
--
17.3
--
47018
--
-3.0
--
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)
0.86
0.9
88.6
0.488
--
3.61
6.0
--
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
EXISTING MODEL
0.86
10.0
--
--
46998
--
1883
94.9
0.1072
0.1068
--
0.14
RANDOM
RMS Deviations
Key
Refinement Restraint Deviation
s_non_zero_chiral_vol
0.083
s_from_restr_planes
0.035
s_approx_iso_adps
0.094
s_bond_d
0.023
s_angle_d
0.043
s_anti_bump_dis_restr
0.081
s_rigid_bond_adp_cmpnt
0.007
s_zero_chiral_vol
0.06
s_similar_adp_cmpnt
0.041
Coordinate Error
Parameter
Value
Number Disordered Residues
12.0
Occupancy Sum Hydrogen
426.0
Occupancy Sum Non Hydrogen
603.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms
Numbers
Protein Atoms
452
Nucleic Acid Atoms
0
Heterogen Atoms
44
Solvent Atoms
170
Software
Software
Software Name
Purpose
DENZO
data reduction
SCALEPACK
data scaling
SHELX
model building
SHELXL-97
refinement
SHELX
phasing