- PDB-4ctd: X-ray structure of an engineered OmpG loop6-deletion -
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ID or keywords:
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Basic information
Entry
Database: PDB / ID: 4ctd
Title
X-ray structure of an engineered OmpG loop6-deletion
Components
OUTER MEMBRANE PROTEIN G
Keywords
TRANSPORT PROTEIN / ION-CHANNEL-ENGINEERING / PORIN
Function / homology
Function and homology information
carbohydrate transmembrane transport / oligosaccharide transporting porin activity / maltose transporting porin activity / porin activity / pore complex / monoatomic ion transport / cell outer membrane Similarity search - Function
Outer membrane porin G / Outer membrane protein G (OmpG) / monomeric porin ompg / Porin / Beta Barrel / Mainly Beta Similarity search - Domain/homology
SHEET DETERMINATION METHOD: DSSP THE SHEETS PRESENTED AS "AA" IN EACH CHAIN ON SHEET RECORDS BELOW ... SHEET DETERMINATION METHOD: DSSP THE SHEETS PRESENTED AS "AA" IN EACH CHAIN ON SHEET RECORDS BELOW IS ACTUALLY AN 14-STRANDED BARREL THIS IS REPRESENTED BY A 15-STRANDED SHEET IN WHICH THE FIRST AND LAST STRANDS ARE IDENTICAL. THE SHEETS PRESENTED AS "BA" IN EACH CHAIN ON SHEET RECORDS BELOW IS ACTUALLY AN 14-STRANDED BARREL THIS IS REPRESENTED BY A 15-STRANDED SHEET IN WHICH THE FIRST AND LAST STRANDS ARE IDENTICAL.
Mass: 306.438 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C16H34O5 / Comment: C8E, detergent*YM
Sequence details
ENGINEERED W217A SUBSTITUTION, ENGINEERED DELETION OF 218- 229 (S, N, W, D, W, Q, D, D, I, E, R, E) ...ENGINEERED W217A SUBSTITUTION, ENGINEERED DELETION OF 218- 229 (S, N, W, D, W, Q, D, D, I, E, R, E), C-TERMINAL HIS- TAG
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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: 2.92 Å3/Da / Density % sol: 57.9 % Description: DATA WERE SCALED BY DIFFRACTION ANISOTROPY SERVER, MBI UCLA, DA 39.82, DB -15.04, DC -24.78, ENGINEERED W217A SUBSTITUTION AND ENGINEERED DELETION OF S218 TO E229 AND C209Y MUTATION WERE ...Description: DATA WERE SCALED BY DIFFRACTION ANISOTROPY SERVER, MBI UCLA, DA 39.82, DB -15.04, DC -24.78, ENGINEERED W217A SUBSTITUTION AND ENGINEERED DELETION OF S218 TO E229 AND C209Y MUTATION WERE APPLIED TO 2WVP BEFORE USE IN MR
Crystal grow
pH: 8.5 Details: 0.1 M TRIS/HCL, PH 8.5, 20% (V/V) ETOH; 8 MG/ML OMPG IN 20 MM TRIS/HCL, PH 8.0, 250 MM NACL, 10% (V/V) GLYCEROL, 0.4% (V/V) C8E4
Resolution: 3.2→44.21 Å / SU ML: 0.41 / σ(F): 1.98 / Phase error: 29.77 / Stereochemistry target values: ML Details: COORDINATES WERE REFINED AGAINST DATA SCALED BY DIFFRACTION ANISOTROPY SERVER, MBI UCLA, DA 39.82, DB -15.04, DC -24.78
Rfactor
Num. reflection
% reflection
Rfree
0.2889
529
4.9 %
Rwork
0.2384
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-
obs
0.2409
10858
91.24 %
Solvent computation
Shrinkage radii: 0.27 Å / VDW probe radii: 0.6 Å / Solvent model: FLAT BULK SOLVENT MODEL / Bsol: 25.289 Å2 / ksol: 0.315 e/Å3
Displacement parameters
Biso mean: 17.81 Å2
Baniso -1
Baniso -2
Baniso -3
1-
-14.8237 Å2
-1.3382 Å2
-2.271 Å2
2-
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-17.5048 Å2
-2.4536 Å2
3-
-
-
-30.8037 Å2
Refinement step
Cycle: LAST / Resolution: 3.2→44.21 Å
Protein
Nucleic acid
Ligand
Solvent
Total
Num. atoms
3774
0
74
0
3848
Refine LS restraints
Refine-ID
Type
Dev ideal
Number
X-RAY DIFFRACTION
f_bond_d
0.015
4174
X-RAY DIFFRACTION
f_angle_d
1.311
5337
X-RAY DIFFRACTION
f_dihedral_angle_d
19.193
1351
X-RAY DIFFRACTION
f_chiral_restr
0.092
527
X-RAY DIFFRACTION
f_plane_restr
0.007
688
Refine LS restraints NCS
Ens-ID
Dom-ID
Auth asym-ID
Number
Refine-ID
Type
Rms dev position (Å)
1
1
A
1829
X-RAY DIFFRACTION
POSITIONAL
1
2
B
1829
X-RAY DIFFRACTION
POSITIONAL
0.038
LS refinement shell
Resolution (Å)
Rfactor Rfree
Num. reflection Rfree
Rfactor Rwork
Num. reflection Rwork
Refine-ID
% reflection obs (%)
3.2001-3.522
0.2975
132
0.2525
2500
X-RAY DIFFRACTION
88
3.522-4.0314
0.3265
137
0.2512
2652
X-RAY DIFFRACTION
94
4.0314-5.0779
0.2712
135
0.2054
2600
X-RAY DIFFRACTION
93
5.0779-44.2145
0.2626
125
0.2547
2577
X-RAY DIFFRACTION
90
Refinement TLS params.
Method: refined / Refine-ID: X-RAY DIFFRACTION
ID
L11 (°2)
L12 (°2)
L13 (°2)
L22 (°2)
L23 (°2)
L33 (°2)
S11 (Å °)
S12 (Å °)
S13 (Å °)
S21 (Å °)
S22 (Å °)
S23 (Å °)
S31 (Å °)
S32 (Å °)
S33 (Å °)
T11 (Å2)
T12 (Å2)
T13 (Å2)
T22 (Å2)
T23 (Å2)
T33 (Å2)
Origin x (Å)
Origin y (Å)
Origin z (Å)
1
1.3171
-0.0114
0.1308
1.0463
0.0944
0.8881
0.0364
-0.0641
0.4435
0.0742
0.025
0.2993
-0.3257
-0.0382
-0.1624
0.1049
-0.0078
0.0505
0.1471
0.0363
0.2445
-9.5971
-12.7472
3.2958
2
0.3929
-0.0211
0.1437
0.1134
-0.1034
0.174
0.087
-0.0193
-0.1513
0.0087
0.0566
0.137
-0.0062
-0.0701
0.7322
0.0798
0.0351
-0.028
0.102
-0.0516
0.4399
0.3624
-17.3963
6.7659
3
0.7608
-0.2995
-0.1489
1.3165
-0.4255
0.9653
0.3131
-0.0094
-0.1872
-0.0021
0.1261
0.4658
-0.0004
-0.0184
1.3937
0.1485
0.0353
-0.0602
0.0247
0.1106
0.1468
-9.2887
-26.9794
3.4926
4
0.7455
0.0615
-0.0587
0.4282
0.1062
0.4565
0.221
0.0392
0.084
-0.1676
0.185
-0.0041
0.0279
-0.2082
0.5231
-0.075
-0.0916
0.0291
0.0942
0.1163
0.2022
14.3072
4.1466
-2.2185
5
1.0967
0.3017
-0.5975
0.8235
-0.2539
0.5175
0.0553
0.2193
0.1342
-0.2266
0.227
0.039
-0.1531
-0.1901
0.5477
0.3481
0.044
-0.0894
0.1526
-0.0534
0.2494
15.5673
-6.5041
-6.2274
6
2.3055
0.2632
-0.122
1.3574
-0.3326
0.593
-0.0081
0.3859
0.317
-0.2327
0.0259
-0.0091
-0.0879
-0.1026
-0.0119
0.1396
0.0516
-0.04
0.022
-0.161
0.2252
27.836
-0.6212
-2.8919
Refinement TLS group
ID
Refine-ID
Refine TLS-ID
Selection details
1
X-RAY DIFFRACTION
1
CHAINAAND (RESSEQ3:137)
2
X-RAY DIFFRACTION
2
CHAINAAND (RESSEQ138:160)
3
X-RAY DIFFRACTION
3
CHAINAAND (RESSEQ161:270)
4
X-RAY DIFFRACTION
4
CHAINBAND (RESSEQ3:137)
5
X-RAY DIFFRACTION
5
CHAINBAND (RESSEQ138:160)
6
X-RAY DIFFRACTION
6
CHAINBAND (RESSEQ161:270)
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