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Basic information

Entry
Database: PDB / ID: 3nav
TitleCrystal structure of an alpha subunit of tryptophan synthase from Vibrio cholerae O1 biovar El Tor str. N16961
ComponentsTryptophan synthase alpha chain
KeywordsLYASE / Tryptophan synthase / alpha subunit / STRUCTURAL GENOMICS / CSGID / Center for Structural Genomics of Infectious Diseases
Function / homology
Function and homology information


tryptophan synthase / tryptophan synthase activity / tryptophan biosynthetic process / cytosol
Similarity search - Function
Tryptophan synthase, alpha chain / Tryptophan synthase, alpha chain, active site / Tryptophan synthase alpha chain / Tryptophan synthase alpha chain signature. / Ribulose-phosphate binding barrel / Aldolase class I / Aldolase-type TIM barrel / TIM Barrel / Alpha-Beta Barrel / Alpha Beta
Similarity search - Domain/homology
Tryptophan synthase alpha chain / Tryptophan synthase alpha chain
Similarity search - Component
Biological speciesVibrio cholerae O1 biovar El Tor (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.1 Å
AuthorsNocek, B. / Makowska-Grzyska, M. / Kwon, K. / Anderson, A. / Joachimiak, A. / Center for Structural Genomics of Infectious Diseases (CSGID)
CitationJournal: To be Published
Title: Crystal structure of an alpha subunit of tryptophan synthase from Vibrio cholerae O1 biovar El Tor str. N16961
Authors: Nocek, B. / Makowska-Grzyska, M. / Kwon, K. / Anderson, W. / Joachimiak, A. / Center for Structural Genomics of Infectious Diseases (CSGID)
History
DepositionJun 2, 2010Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jun 30, 2010Provider: repository / Type: Initial release
Revision 1.1Jul 13, 2011Group: Version format compliance
Revision 1.2Sep 6, 2023Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model / struct_ref_seq_dif / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Tryptophan synthase alpha chain
B: Tryptophan synthase alpha chain
hetero molecules


Theoretical massNumber of molelcules
Total (without water)57,6403
Polymers57,5782
Non-polymers621
Water6,864381
1


  • Idetical with deposited unit
  • defined by software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area1750 Å2
ΔGint-11 kcal/mol
Surface area21980 Å2
MethodPISA
Unit cell
Length a, b, c (Å)57.594, 60.380, 141.197
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121

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Components

#1: Protein Tryptophan synthase alpha chain


Mass: 28788.865 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Vibrio cholerae O1 biovar El Tor (bacteria)
Strain: N16961 / Plasmid: pMCSG7 / Production host: Escherichia coli (E. coli) / Strain (production host): BL21 magic
References: UniProt: C3LLL5, UniProt: Q9KST7*PLUS, tryptophan synthase
#2: Chemical ChemComp-EDO / 1,2-ETHANEDIOL / ETHYLENE GLYCOL / Ethylene glycol


Mass: 62.068 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C2H6O2
#3: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 381 / Source method: isolated from a natural source / Formula: H2O

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 2.13 Å3/Da / Density % sol: 42.31 %
Crystal growTemperature: 291 K / Method: vapor diffusion, sitting drop / pH: 7
Details: 0.2 M Ammonium flouride 20% Peg 3350, pH 7.0, VAPOR DIFFUSION, SITTING DROP, temperature 291K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: APS / Beamline: 19-ID / Wavelength: 0.9794 Å
DetectorType: ADSC QUANTUM 315r / Detector: CCD / Date: May 18, 2010 / Details: mirrors
RadiationMonochromator: double crystal / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9794 Å / Relative weight: 1
ReflectionResolution: 2.1→40 Å / Num. all: 29900 / Num. obs: 29864 / % possible obs: 99.9 % / Observed criterion σ(F): 2 / Observed criterion σ(I): 2 / Redundancy: 5.3 % / Biso Wilson estimate: 31 Å2 / Rmerge(I) obs: 0.091 / Net I/σ(I): 10
Reflection shellResolution: 2.1→2.14 Å / Redundancy: 5.2 % / Rmerge(I) obs: 0.38 / Mean I/σ(I) obs: 8.3 / Num. unique all: 1465 / % possible all: 100

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Processing

Software
NameVersionClassification
SBC-Collectdata collection
MOLREPphasing
REFMAC5.5.0109refinement
HKL-3000data reduction
HKL-3000data scaling
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 1XC4
Resolution: 2.1→40 Å / Cor.coef. Fo:Fc: 0.949 / Cor.coef. Fo:Fc free: 0.916 / SU B: 11.182 / SU ML: 0.134 / Cross valid method: THROUGHOUT / σ(F): 2 / σ(I): 2 / ESU R Free: 0.196 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.23304 1491 5.1 %RANDOM
Rwork0.17914 ---
obs0.18201 27827 99.32 %-
all-29318 --
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.4 Å / Solvent model: MASK
Displacement parametersBiso mean: 23.31 Å2
Baniso -1Baniso -2Baniso -3
1-0.91 Å20 Å20 Å2
2---1 Å20 Å2
3---0.09 Å2
Refinement stepCycle: LAST / Resolution: 2.1→40 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3882 0 4 381 4267
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.020.0223965
X-RAY DIFFRACTIONr_bond_other_d0.0010.022634
X-RAY DIFFRACTIONr_angle_refined_deg1.6681.9795396
X-RAY DIFFRACTIONr_angle_other_deg1.1736483
X-RAY DIFFRACTIONr_dihedral_angle_1_deg6.2315517
X-RAY DIFFRACTIONr_dihedral_angle_2_deg37.02925.273165
X-RAY DIFFRACTIONr_dihedral_angle_3_deg14.87615632
X-RAY DIFFRACTIONr_dihedral_angle_4_deg20.2841519
X-RAY DIFFRACTIONr_chiral_restr0.0970.2628
X-RAY DIFFRACTIONr_gen_planes_refined0.0090.0214456
X-RAY DIFFRACTIONr_gen_planes_other0.0010.02731
X-RAY DIFFRACTIONr_nbd_refined
X-RAY DIFFRACTIONr_nbd_other
X-RAY DIFFRACTIONr_nbtor_refined
X-RAY DIFFRACTIONr_nbtor_other
X-RAY DIFFRACTIONr_xyhbond_nbd_refined
X-RAY DIFFRACTIONr_xyhbond_nbd_other
X-RAY DIFFRACTIONr_metal_ion_refined
X-RAY DIFFRACTIONr_metal_ion_other
X-RAY DIFFRACTIONr_symmetry_vdw_refined
X-RAY DIFFRACTIONr_symmetry_vdw_other
X-RAY DIFFRACTIONr_symmetry_hbond_refined
X-RAY DIFFRACTIONr_symmetry_hbond_other
X-RAY DIFFRACTIONr_symmetry_metal_ion_refined
X-RAY DIFFRACTIONr_symmetry_metal_ion_other
X-RAY DIFFRACTIONr_mcbond_it1.031.52597
X-RAY DIFFRACTIONr_mcbond_other0.2011.51034
X-RAY DIFFRACTIONr_mcangle_it1.88924157
X-RAY DIFFRACTIONr_scbond_it2.64531368
X-RAY DIFFRACTIONr_scangle_it4.4294.51238
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
LS refinement shellResolution: 2.1→2.154 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.277 104 -
Rwork0.193 2028 -
obs--99.58 %
Refinement TLS params.

Method: refined / Refine-ID: X-RAY DIFFRACTION

IDL112)L122)L132)L222)L232)L332)S11 (Å °)S12 (Å °)S13 (Å °)S21 (Å °)S22 (Å °)S23 (Å °)S31 (Å °)S32 (Å °)S33 (Å °)T112)T122)T132)T222)T232)T332)Origin x (Å)Origin y (Å)Origin z (Å)
15.26960.58613.57620.3159-0.54212.2062-0.09530.12920.3951-0.0729-0.04780.1078-0.05060.23340.14310.4348-0.02260.06230.1272-0.01510.198615.716517.607318.5461
20.7552-0.15660.37612.5201-1.70151.59790.0385-0.0160.0292-0.23940.02390.0975-0.0165-0.0994-0.06240.26090.0055-0.00430.2033-0.00050.19728.170110.371814.2814
30.52740.13070.34641.0091-0.27781.0616-0.01050.06940.007-0.0204-0.032-0.09330.08540.10170.04250.20960.00850.00160.2115-0.00570.203819.9746-1.824924.4572
40.6982-0.0409-0.77160.68140.32280.44330.0166-0.00860.03790.08410.0192-0.00270.006-0.0314-0.03580.21740.0078-0.01150.2260.020.209614.6035-0.357939.8796
50.46570.31920.30231.1855-0.0660.28240.0089-0.0584-0.04830.026-0.0147-0.05180.0136-0.00690.00590.2010.0084-0.0010.2118-0.00190.206523.1149-1.301237.3743
60.48891.0113-0.4041.32210.46221.06880.00880.027-0.034-0.08820.0316-0.1039-0.06620.1142-0.04040.20270.00810.03630.25790.00440.204224.63246.962421.3382
70.7650.32380.34260.90010.28671.0456-0.0114-0.05410.01450.0277-0.0032-0.0609-0.0202-0.01590.01460.21870.00250.0020.19980.0010.204622.423313.388136.6816
80.982-0.0328-0.62770.4192-0.11521.20130.02560.02370.00990.07260.014-0.0138-0.0489-0.0904-0.03970.22460.00670.00880.1960.00520.203114.098417.487436.1836
99.62213.773-0.7511.1558-0.002-0.12020.023-0.17130.2013-0.0225-0.04620.1282-0.03510.03360.02320.23010.0042-0.00330.21050.00920.213716.009719.553730.669
103.9158-2.243-3.05323.20071.52752.35730.0788-0.05470.0505-0.0109-0.0465-0.04150.0403-0.0692-0.03230.2010.0095-0.03960.20470.01690.21062.635920.38832.5312
11-1.7639-3.2112-0.8133-3.35112.76123.19880.4942-0.57070.55760.0015-0.0284-0.04630.9667-0.3466-0.46580.3549-0.2971-0.0540.3868-0.02690.4232-3.3068.307230.1621
122.0254-1.1494-0.31464.8228-0.01271.055-0.01640.20650.0897-0.29230.08780.30480.1196-0.1788-0.07140.1981-0.0018-0.04630.24320.01510.2047-1.965417.248325.4422
13-0.19130.2507-0.01483.65340.84611.5457-0.00840.0085-0.0503-0.1296-0.02260.0442-0.035-0.1320.0310.20590.0065-0.00250.217-0.00140.19460.57142.287122.8498
143.6745-1.3368-1.06261.9926-0.0221.89490.0761-0.1609-0.3137-0.067-0.05140.02230.28340.0029-0.02470.24580.0053-0.02910.1743-0.00560.236315.1928-12.361127.6759
152.9963-1.72720.08082.3445-0.59210.71480.10690.0896-0.0749-0.2156-0.03370.04550.1606-0.0666-0.07320.2580.0024-0.01690.1888-0.0290.20339.2162-4.96916.9316
160.9288-0.8595-1.79764.9177-1.78341.5932-0.0608-0.13520.18320.30470.0131-0.3634-0.01330.07840.04770.2372-0.0048-0.03370.2461-0.02810.234116.59882.599573.2768
172.57162.43233.4873.34681.27745.55390.1497-0.0219-0.06890.01390.1351-0.1864-0.0381-0.1109-0.28480.2390.0132-0.00340.22220.01940.183211.6634-6.127578.3317
180.5468-0.2620.39710.7377-0.49360.8583-0.0347-0.01950.00180.0650.04130.023-0.0417-0.09-0.00650.2147-0.00250.00760.2026-0.00310.19541.33235.818463.7419
190.61460.29150.13470.38130.81741.117-0.01460.0742-0.03030.06390.0349-0.05830.05740.0576-0.02030.22830.0036-0.01070.2253-0.00020.21834.07685.518544.6428
201.64020.41590.77161.2238-0.2360.3233-0.06480.1828-0.0524-0.10620.11380.0377-0.04240.0649-0.0490.23060.00180.00120.21170.0030.19460.617614.111651.2288
211.348-0.0944-0.5981.33790.32861.2454-0.035-0.08460.05060.11960.09070.074-0.131-0.0751-0.05570.23520.00770.00330.2178-0.00660.18845.855513.869368.6986
221.04110.0986-0.32670.7851-0.36370.9286-0.0299-0.02510.00680.0123-0.0085-0.0303-0.08850.09470.03840.2137-0.0127-0.00980.219-0.01020.182315.535313.333458.014
232.32060.28810.75661.29670.86652.0460.00080.2933-0.02110.030.1427-0.04720.06020.4334-0.14350.190.0036-0.02150.2833-0.00520.186923.97576.286853.0824
242.42742.82810.56019.0381.95871.9377-0.0295-0.0606-0.14090.1396-0.0097-0.13180.11520.32130.03910.19290.0093-0.02940.26960.0260.161421.52395.904960.9693
25-2.60270.9825-7.194919.3443-4.82453.4694-0.6423-1.0185-0.6811-1.7051-1.473-0.82490.07121.06232.11530.07010.29440.16540.34260.23120.596727.1479-6.165456.5572
260.56610.1208-0.31121.1345-1.33762.74260.04080.1212-0.1527-0.0555-0.02030.00130.08450.0986-0.02050.21070.0332-0.00550.2109-0.0090.249415.4776-5.366460.0243
2716.948319.99246.375213.66520.39718.7507-0.0138-1.44970.4325-0.534-1.6849-0.49113.0711.26791.69870.58750.49140.23070.05680.07220.325722.8433-13.933862.2115
281.7233-0.51570.60630.8645-0.40660.53230.08240.0536-0.0515-0.0317-0.01810.00610.2117-0.0342-0.06430.2557-0.011-0.01240.1882-0.01380.20395.4104-7.83960.9968
29-0.3478-0.64250.5133.4561-0.27823.95710.0425-0.0707-0.1334-0.1352-0.02230.46510.0495-0.2253-0.02020.1517-0.03640.0070.26850.02320.2864-11.35563.059161.0396
308.2456-5.44796.23285.0383-3.36546.16460.1128-0.4695-0.15260.12640.1290.14830.1519-0.3001-0.24190.2475-0.03310.00520.1970.02960.19170.3545-8.193669.9204
Refinement TLS group
IDRefine-IDRefine TLS-IDAuth asym-IDAuth seq-ID
1X-RAY DIFFRACTION1A0 - 4
2X-RAY DIFFRACTION2A5 - 21
3X-RAY DIFFRACTION3A22 - 48
4X-RAY DIFFRACTION4A49 - 64
5X-RAY DIFFRACTION5A65 - 82
6X-RAY DIFFRACTION6A83 - 97
7X-RAY DIFFRACTION7A98 - 120
8X-RAY DIFFRACTION8A121 - 142
9X-RAY DIFFRACTION9A143 - 153
10X-RAY DIFFRACTION10A154 - 173
11X-RAY DIFFRACTION11A174 - 193
12X-RAY DIFFRACTION12A194 - 211
13X-RAY DIFFRACTION13A212 - 235
14X-RAY DIFFRACTION14A236 - 250
15X-RAY DIFFRACTION15A251 - 268
16X-RAY DIFFRACTION16B0 - 8
17X-RAY DIFFRACTION17B9 - 15
18X-RAY DIFFRACTION18B16 - 52
19X-RAY DIFFRACTION19B53 - 64
20X-RAY DIFFRACTION20B65 - 80
21X-RAY DIFFRACTION21B81 - 95
22X-RAY DIFFRACTION22B96 - 127
23X-RAY DIFFRACTION23B128 - 143
24X-RAY DIFFRACTION24B144 - 155
25X-RAY DIFFRACTION25B156 - 170
26X-RAY DIFFRACTION26B171 - 180
27X-RAY DIFFRACTION27B192 - 204
28X-RAY DIFFRACTION28B205 - 242
29X-RAY DIFFRACTION29B243 - 257
30X-RAY DIFFRACTION30B258 - 268

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