- PDB-3kzt: Crystal structure of Protein of unknown function (NP_812423.1) fr... -
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Open data
ID or keywords:
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Basic information
Entry
Database: PDB / ID: 3kzt
Title
Crystal structure of Protein of unknown function (NP_812423.1) from BACTEROIDES THETAIOTAOMICRON VPI-5482 at 2.10 A resolution
Components
uncharacterized protein
Keywords
structural genomics / unknown function / Protein of unknown function / Joint Center for Structural Genomics / JCSG / Protein Structure Initiative / PSI-2
Function / homology
Nuclear Transport Factor 2; Chain: A, - #50 / Nuclear Transport Factor 2; Chain: A, / Prokaryotic membrane lipoprotein lipid attachment site profile. / Roll / Alpha Beta / DUF3828 domain-containing protein
Function and homology information
Biological species
Bacteroides thetaiotaomicron (bacteria)
Method
X-RAY DIFFRACTION / SYNCHROTRON / MAD / Resolution: 2.1 Å
Mass: 18.015 Da / Num. of mol.: 118 / Source method: isolated from a natural source / Formula: H2O
Has protein modification
Y
Sequence details
SEQUENCE THIS CONSTRUCT (RESIDUES 26-167) WAS EXPRESSED WITH THE PURIFICATION TAG ...SEQUENCE THIS CONSTRUCT (RESIDUES 26-167) WAS EXPRESSED WITH THE 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: 2.05 Å3/Da / Density % sol: 39.97 %
Crystal grow
Temperature: 277 K / Method: vapor diffusion, sitting drop / pH: 5.8 Details: 3.0000M ammonium sulfate, 0.1M MES pH 5.8, NANODROP, VAPOR DIFFUSION, SITTING DROP, temperature 277K
Type: MARMOSAIC 325 mm CCD / Detector: CCD / Date: Jun 10, 2009 / Details: Flat mirror (vertical focusing)
Radiation
Monochromator: Single crystal Si(111) bent monochromator (horizontal focusing) Protocol: MAD / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelength
ID
Wavelength (Å)
Relative weight
1
0.91837
1
2
0.97916
1
Reflection
Resolution: 2.1→28.56 Å / Num. obs: 16114 / % possible obs: 99.9 % / Redundancy: 3.4 % / Biso Wilson estimate: 30.795 Å2 / Rmerge(I) obs: 0.108 / Rsym value: 0.108 / Net I/σ(I): 9.2
Reflection shell
Diffraction-ID: 1
Resolution (Å)
Redundancy (%)
Rmerge(I) obs
Mean I/σ(I) obs
Num. measured all
Num. unique all
Rsym value
% possible all
2.1-2.15
3.5
0.629
1.2
3906
1131
0.629
100
2.15-2.21
3.5
0.52
1.5
4001
1157
0.52
100
2.21-2.28
3.5
0.493
1.6
3850
1113
0.493
100
2.28-2.35
3.4
0.41
1.8
3705
1076
0.41
100
2.35-2.42
3.5
0.378
2
3634
1051
0.378
99.9
2.42-2.51
3.5
0.32
2.4
3453
998
0.32
100
2.51-2.6
3.4
0.27
2.8
3418
991
0.27
100
2.6-2.71
3.5
0.237
3.2
3240
939
0.237
100
2.71-2.83
3.4
0.186
4.1
3093
904
0.186
100
2.83-2.97
3.4
0.147
4.8
3001
877
0.147
100
2.97-3.13
3.4
0.129
5.5
2844
838
0.129
100
3.13-3.32
3.4
0.102
6.9
2696
797
0.102
100
3.32-3.55
3.4
0.082
8.2
2546
752
0.082
99.9
3.55-3.83
3.4
0.07
8.6
2319
689
0.07
99.8
3.83-4.2
3.3
0.059
10.3
2172
651
0.059
99.9
4.2-4.7
3.3
0.051
11.8
1936
582
0.051
99.8
4.7-5.42
3.2
0.055
10.7
1706
531
0.055
99.8
5.42-6.64
3.2
0.061
9.8
1447
458
0.061
99.7
6.64-9.39
3.1
0.047
11.3
1125
363
0.047
99.8
9.39-28.56
2.8
0.037
13
597
216
0.037
95.6
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Phasing
Phasing
Method: MAD
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Processing
Software
Name
Version
Classification
NB
REFMAC
5.5.0053
refinement
PHENIX
refinement
SHELX
phasing
MolProbity
3beta29
modelbuilding
SCALA
3.2.5
datascaling
PDB_EXTRACT
3.006
dataextraction
MOSFLM
datareduction
SHELXD
phasing
autoSHARP
phasing
Refinement
Method to determine structure: MAD / Resolution: 2.1→28.56 Å / Cor.coef. Fo:Fc: 0.943 / Cor.coef. Fo:Fc free: 0.907 / Occupancy max: 1 / Occupancy min: 0.22 / SU B: 14.661 / SU ML: 0.17 / TLS residual ADP flag: LIKELY RESIDUAL / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R: 0.299 / ESU R Free: 0.224 Stereochemistry target values: MAXIMUM LIKELIHOOD WITH PHASES Details: 1. HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS. 2. ATOM RECORDS CONTAIN RESIDUAL B FACTORS ONLY. 3. A MET-INHIBITION PROTOCOL WAS USED FOR SELENOMETHIONINE INCORPORATION DURING PROTEIN ...Details: 1. HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS. 2. ATOM RECORDS CONTAIN RESIDUAL B FACTORS ONLY. 3. 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 TO ACCOUNT FOR THE REDUCED SCATTERING POWER DUE TO PARTIAL S-MET INCORPORATION. 4. ETHYLENE GLYCOL (EDO) AND SULFATE IONS (SO4) FROM THE CRYSTALLIZATION/CRYOPROTECTANT SOLUTIONS HAVE BEEN MODELED INTO THE SOLVENT STRUCTURE. 5. TLS GROUPS WERE ASSIGNED WITH THE AID OF THE TLSMD SERVER.
Rfactor
Num. reflection
% reflection
Selection details
Rfree
0.268
805
5 %
RANDOM
Rwork
0.222
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obs
0.224
16067
99.89 %
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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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