Mass: 18.015 Da / Num. of mol.: 337 / Source method: isolated from a natural source / Formula: H2O
Has protein modification
Y
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Experimental details
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Experiment
Experiment
Method: X-RAY DIFFRACTION / Number of used crystals: 1
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Sample preparation
Crystal
Density Matthews: 2.75 Å3/Da / Density % sol: 55.23 %
Crystal grow
Temperature: 293 K / Method: microbatch / pH: 8.5 Details: Sample of human Chymase in 50 mM MES/NaOH pH 5.5, 150mM NaCl, 1mM TCEP, 10% Glycerol) at a concentration of 11mg/ml to 14mg/ml.Add [2-[(4-methylpyridin-2-yl)amino]-2-oxoethyl] 2- ...Details: Sample of human Chymase in 50 mM MES/NaOH pH 5.5, 150mM NaCl, 1mM TCEP, 10% Glycerol) at a concentration of 11mg/ml to 14mg/ml.Add [2-[(4-methylpyridin-2-yl)amino]-2-oxoethyl] 2-methylquinoline-4-carboxylate at 10x molar ratio. The compound helps to obtain crystals but is not visible in the structures. Add 0.5 mM ZnCl2. Add inhibitor, incubate for 16h on ice. Crystallize using microbatch setups with Al's oil (Hampton Research), with total drop size 1ul with 50% protein sample, using crystallization reagent of 0.1M Tris/HCl pH 8.5, 0.2M NaCl, 25% PEG 3350.
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Data collection
Diffraction
Mean temperature: 100 K
Diffraction source
Source: ROTATING ANODE / Type: BRUKER AXS MICROSTAR / Wavelength: 1.5418 Å
Detector
Type: MAR scanner 345 mm plate / Detector: IMAGE PLATE / Date: Oct 23, 2006
Radiation
Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelength
Wavelength: 1.5418 Å / Relative weight: 1
Reflection
Resolution: 1.64→18.64 Å / Num. obs: 32893 / % possible obs: 98.3 % / Rmerge(I) obs: 0.047 / Rrim(I) all: 0.051 / Net I/σ(I): 29.82 / Num. measured all: 232642
Reflection shell
Diffraction-ID: 1
Resolution (Å)
% possible obs (%)
Rmerge(I) obs
Num. measured obs
Num. unique obs
Rrim(I) all
Net I/σ(I) obs
1.64-1.74
92.5
0.255
32303
4992
0.277
7.69
1.74-1.86
98.5
0.177
34710
4969
0.192
11.4
1.86-2.01
99.2
0.106
33170
4700
0.115
17.62
2.01-2.2
99.6
0.063
30474
4273
0.068
27.71
2.2-2.45
99.8
0.05
27605
3824
0.054
34.82
2.45-2.83
99.9
0.044
25725
3530
0.047
39.73
2.83-3.44
100
0.029
21435
2914
0.031
53
3.44-4.79
100
0.023
17082
2303
0.025
69.09
4.79-18.64
98.2
0.022
10138
1388
0.024
70.38
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Processing
Software
Name
Version
Classification
REFMAC
5.8.0425
refinement
XSCALE
datascaling
XDS
datareduction
PHASER
phasing
Refinement
Method to determine structure: MOLECULAR REPLACEMENT / Resolution: 1.64→18.64 Å / Cor.coef. Fo:Fc: 0.966 / Cor.coef. Fo:Fc free: 0.957 / SU B: 1.413 / SU ML: 0.048 / Cross valid method: THROUGHOUT / ESU R: 0.077 / ESU R Free: 0.077 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
Rfactor
Num. reflection
% reflection
Selection details
Rfree
0.17343
1662
5.1 %
RANDOM
Rwork
0.14735
-
-
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obs
0.14867
31228
98.97 %
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Solvent computation
Ion probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK