- PDB-3ez0: Crystal structure of protein of unknown function with ferritin-li... -
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Open data
ID or keywords:
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Basic information
Entry
Database: PDB / ID: 3ez0
Title
Crystal structure of protein of unknown function with ferritin-like fold (YP_832262.1) from Arthrobacter sp. FB24 at 2.33 A resolution
Components
uncharacterized protein with ferritin-like fold
Keywords
structural genomics / unknown function / YP_832262.1 / protein of unknown function with ferritin-like fold / Joint Center for Structural Genomics / JCSG / Protein Structure Initiative / PSI-2
#228 - Dec 2018 Directed Evolution of Enzymes similarity (1)
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Assembly
Deposited unit
A: uncharacterized protein with ferritin-like fold B: uncharacterized protein with ferritin-like fold C: uncharacterized protein with ferritin-like fold D: uncharacterized protein with ferritin-like fold hetero molecules
Mass: 18.015 Da / Num. of mol.: 173 / Source method: isolated from a natural source / Formula: H2O
Sequence details
THE CONSTRUCT WAS EXPRESSED WITH A PURIFICATION TAG MGSDKIHHHHHHENLYFQG. THE TAG WAS REMOVED WITH ...THE CONSTRUCT WAS EXPRESSED WITH A PURIFICATION TAG MGSDKIHHHHHHENLYFQG. THE TAG WAS REMOVED WITH TEV PROTEASE LEAVING ONLY A GLYCINE (0) FOLLOWED BY THE TARGET SEQUENCE.
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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: 2.11 Å3/Da / Density % sol: 41.67 %
Crystal grow
Temperature: 293 K / Method: vapor diffusion, sitting drop / pH: 6.47 Details: 20.0% polyethylene glycol 3350, 0.171M potassium sodium tartrate, 0.1M MES pH 6.47, NANODROP, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Monochromator: Double crystal monochromator / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelength
Wavelength: 0.97918 Å / Relative weight: 1
Reflection
Resolution: 2.33→29.54 Å / Num. obs: 35863 / % possible obs: 97.4 % / Observed criterion σ(I): -3 / Redundancy: 5.65 % / Biso Wilson estimate: 46.71 Å2 / Rmerge F obs: 0.191 / Rmerge(I) obs: 0.067 / Rrim(I) all: 0.083 / Net I/σ(I): 10.67 / Num. measured all: 202485
Reflection shell
Diffraction-ID: 1
Resolution (Å)
Rmerge F obs
Rmerge(I) obs
Mean I/σ(I) obs
Num. measured obs
Num. possible
Num. unique obs
Rrim(I) all
% possible all
2.33-2.41
1.023
0.612
1.85
19518
6855
6593
0.755
96.2
2.41-2.51
0.777
0.466
2.4
20906
7345
7087
0.575
96.5
2.51-2.62
0.635
0.367
3
19609
6851
6637
0.453
96.9
2.62-2.76
0.46
0.271
4.1
20349
7135
6927
0.334
97.1
2.76-2.93
0.317
0.184
5.7
20123
7006
6824
0.227
97.4
2.93-3.16
0.218
0.125
8.2
20747
7236
7062
0.155
97.6
3.16-3.48
0.123
0.07
12.6
20419
7121
6973
0.087
97.9
3.48-3.98
0.065
0.044
18.9
20127
7055
6887
0.054
97.6
3.98-5
0.045
0.032
23.4
20173
7023
6915
0.04
98.5
5-29.54
0.039
0.029
25.9
20514
7182
7047
0.036
98.1
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Phasing
Phasing
Method: SAD
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Processing
Software
Name
Version
Classification
NB
REFMAC
5.2.0019
refinement
PHENIX
refinement
SHELX
phasing
MolProbity
3beta29
modelbuilding
XSCALE
datascaling
PDB_EXTRACT
3.006
dataextraction
XDS
datareduction
SHELXD
phasing
autoSHARP
phasing
Refinement
Method to determine structure: SAD / Resolution: 2.33→29.54 Å / Cor.coef. Fo:Fc: 0.952 / Cor.coef. Fo:Fc free: 0.931 / Occupancy max: 1 / Occupancy min: 0.75 / SU B: 19.064 / SU ML: 0.227 / TLS residual ADP flag: LIKELY RESIDUAL / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R: 0.507 / ESU R Free: 0.279 Stereochemistry target values: MAXIMUM LIKELIHOOD WITH PHASES Details: 1. HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS. 2. A MET-INHIBITION PROTOCOL WAS USED FOR SELENOMETHIONINE INCORPORATION DURING PROTEIN EXPRESSION. THE OCCUPANCY OF THE SE ATOMS IN THE ...Details: 1. HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS. 2. A MET-INHIBITION PROTOCOL WAS USED FOR SELENOMETHIONINE INCORPORATION DURING PROTEIN EXPRESSION. THE OCCUPANCY OF THE SE ATOMS IN THE MSE RESIDUES WAS REDUCED TO 0.75 FOR THE REDUCED SCATTERING POWER DUE TO PARTIAL S-MET INCORPORATION. 3. ATOM RECORDS CONTAIN RESIDUAL B FACTORS ONLY. 4. L(+)-TARTARIC ACID (TLA) IS PRESENT IN CRYSTALLIZATION CONDITION. 5. UNKNOWN LIGANDS (UNL) WERE MODELED TO ACCOUNT FOR DENSITIES NEAR THE PUTATIVE ACTIVE SITES. THEY RESEMBLE 1-ACYL-GLYCERONE-3-PHOSPHATE. ANOTHER WEAK PEG-LIKE DENSITY NEARBY WAS NOT MODELED.
Rfactor
Num. reflection
% reflection
Selection details
Rfree
0.262
1786
5 %
RANDOM
Rwork
0.21
34056
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obs
0.213
35842
99.54 %
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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
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