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- PDB-7vgk: Crystal structure of Lactobacillus rhamnosus 4-deoxy-L-threo-5-he... -

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Basic information

Entry
Database: PDB / ID: 7vgk
TitleCrystal structure of Lactobacillus rhamnosus 4-deoxy-L-threo-5-hexosulose-uronate ketol-isomerase KduI
Components4-deoxy-L-threo-5-hexosulose-uronate ketol-isomerase
KeywordsISOMERASE / hexuronate-metabolizing enzyme / Lactobacillus / heparin
Function / homology
Function and homology information


5-dehydro-4-deoxy-D-glucuronate isomerase / 4-deoxy-L-threo-5-hexosulose-uronate ketol-isomerase activity / pectin catabolic process / zinc ion binding
Similarity search - Function
5-keto 4-deoxyuronate isomerase / 5-keto-4-deoxyuronate isomerase, N-terminal / KduI/IolB isomerase / KduI/IolB family / RmlC-like cupin domain superfamily / RmlC-like jelly roll fold
Similarity search - Domain/homology
4-deoxy-L-threo-5-hexosulose-uronate ketol-isomerase
Similarity search - Component
Biological speciesLactobacillus rhamnosus (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 3.1 Å
AuthorsIwase, H. / Oiki, S. / Mikami, B. / Takase, R. / Hashimoto, W.
Funding support Japan, 1items
OrganizationGrant numberCountry
Japan Society for the Promotion of Science (JSPS) Japan
CitationJournal: J.Appl.Glyosci. / Year: 2023
Title: Crystal structures of Lacticaseibacillus 4-deoxy-L-threo-5-hexosulose-uronate ketol-isomerase KduI in complex with substrate analogs
Authors: Iwase, H. / Yamamoto, Y. / Yamada, A. / Kawai, K. / Oiki, S. / Watanabe, D. / Mikami, B. / Takase, R. / Hashimoto, W.
History
DepositionSep 16, 2021Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Oct 19, 2022Provider: repository / Type: Initial release
Revision 1.1Nov 15, 2023Group: Data collection / Database references
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / citation / citation_author
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.pdbx_database_id_DOI / _citation.title / _citation.year
Revision 1.2Nov 29, 2023Group: Refinement description / Category: pdbx_initial_refinement_model

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: 4-deoxy-L-threo-5-hexosulose-uronate ketol-isomerase
B: 4-deoxy-L-threo-5-hexosulose-uronate ketol-isomerase
C: 4-deoxy-L-threo-5-hexosulose-uronate ketol-isomerase
D: 4-deoxy-L-threo-5-hexosulose-uronate ketol-isomerase
E: 4-deoxy-L-threo-5-hexosulose-uronate ketol-isomerase
F: 4-deoxy-L-threo-5-hexosulose-uronate ketol-isomerase


Theoretical massNumber of molelcules
Total (without water)182,6736
Polymers182,6736
Non-polymers00
Water00
1
A: 4-deoxy-L-threo-5-hexosulose-uronate ketol-isomerase

E: 4-deoxy-L-threo-5-hexosulose-uronate ketol-isomerase


Theoretical massNumber of molelcules
Total (without water)60,8912
Polymers60,8912
Non-polymers00
Water0
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation3_746-x+2,y-1/2,-z+3/21
Buried area2110 Å2
ΔGint-9 kcal/mol
Surface area21710 Å2
MethodPISA
2
B: 4-deoxy-L-threo-5-hexosulose-uronate ketol-isomerase
F: 4-deoxy-L-threo-5-hexosulose-uronate ketol-isomerase


Theoretical massNumber of molelcules
Total (without water)60,8912
Polymers60,8912
Non-polymers00
Water0
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area2210 Å2
ΔGint-12 kcal/mol
Surface area21710 Å2
MethodPISA
3
C: 4-deoxy-L-threo-5-hexosulose-uronate ketol-isomerase

D: 4-deoxy-L-threo-5-hexosulose-uronate ketol-isomerase


Theoretical massNumber of molelcules
Total (without water)60,8912
Polymers60,8912
Non-polymers00
Water0
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation2_664-x+3/2,-y+1,z-1/21
Buried area2140 Å2
ΔGint-10 kcal/mol
Surface area21440 Å2
MethodPISA
Unit cell
Length a, b, c (Å)94.190, 130.980, 157.315
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
4-deoxy-L-threo-5-hexosulose-uronate ketol-isomerase / 5-keto-4-deoxyuronate isomerase / DKI isomerase


Mass: 30445.465 Da / Num. of mol.: 6
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Lactobacillus rhamnosus (bacteria) / Gene: kduI, kduI1, GKD16_00900, LRHP540_00845 / Production host: Escherichia coli B (bacteria)
References: UniProt: A0A508YKK7, 5-dehydro-4-deoxy-D-glucuronate isomerase

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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: 2.43 Å3/Da / Density % sol: 49.3 %
Crystal growTemperature: 293 K / Method: vapor diffusion / Details: PEG 8000, magnesium acetate

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: SPring-8 / Beamline: BL38B1 / Wavelength: 1 Å
DetectorType: RAYONIX MX225HE / Detector: CCD / Date: Dec 8, 2017
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1 Å / Relative weight: 1
ReflectionResolution: 3.1→50 Å / Num. obs: 35643 / % possible obs: 99.4 % / Redundancy: 5.7 % / Rpim(I) all: 0.044 / Rrim(I) all: 0.098 / Net I/σ(I): 20.8
Reflection shellResolution: 3.1→3.15 Å / Rmerge(I) obs: 0.596 / Num. unique obs: 1735 / CC1/2: 0.614 / Rpim(I) all: 0.265

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Processing

Software
NameVersionClassification
PHENIX(1.18.2_3874: ???)refinement
HKL-2000data reduction
HKL-2000data scaling
HKL2Mapphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 1ywk
Resolution: 3.1→45.12 Å / SU ML: 0.4 / Cross valid method: FREE R-VALUE / σ(F): 1.33 / Phase error: 25.7 / Stereochemistry target values: ML
RfactorNum. reflection% reflection
Rfree0.2384 1742 4.9 %
Rwork0.194 --
obs0.1963 35554 99.18 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL
Refinement stepCycle: LAST / Resolution: 3.1→45.12 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms12377 0 0 0 12377
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.00212707
X-RAY DIFFRACTIONf_angle_d0.51117204
X-RAY DIFFRACTIONf_dihedral_angle_d20.6484646
X-RAY DIFFRACTIONf_chiral_restr0.0431821
X-RAY DIFFRACTIONf_plane_restr0.0032226
LS refinement shell
Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkRefine-ID% reflection obs (%)
3.1-3.20.37171370.28762696X-RAY DIFFRACTION97
3.2-3.30.29471640.27372759X-RAY DIFFRACTION100
3.3-3.420.32221340.25042813X-RAY DIFFRACTION100
3.42-3.550.30651410.23612797X-RAY DIFFRACTION100
3.55-3.720.25051380.2132815X-RAY DIFFRACTION100
3.72-3.910.28561370.2122826X-RAY DIFFRACTION100
3.91-4.160.23781540.19092819X-RAY DIFFRACTION100
4.16-4.480.18721400.1552842X-RAY DIFFRACTION100
4.48-4.930.19711470.15742834X-RAY DIFFRACTION100
4.93-5.640.22251570.18652831X-RAY DIFFRACTION100
5.64-7.10.22911320.19442884X-RAY DIFFRACTION99
7.1-45.120.22231610.17472896X-RAY DIFFRACTION96
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)
12.5110.04580.99372.55-0.98373.06920.1720.07810.14670.15410.0840.956-0.3881-0.6023-0.28250.67370.1374-0.01430.7396-0.04531.0786114.581469.7417131.2674
20.9363-2.08141.08598.7964-3.5671.46590.3920.6373-0.1126-1.1663-0.4050.73540.15450.27740.00131.0310.1461-0.23810.8224-0.00940.8018121.736855.6716118.8634
32.86012.71420.2698.28082.32864.53260.2541-0.04690.17550.3412-0.46030.94520.0012-0.02650.24120.65360.1314-0.07840.6066-0.03220.8503124.873854.7504133.2802
49.42852.9221-1.40293.87690.05473.3413-0.54040.557-0.5122-0.3770.7155-0.23010.58160.4107-0.26380.87720.05260.08030.4835-0.05330.491298.13683.895888.0818
54.15360.6389-0.89815.11511.22737.12570.0741-0.03180.2802-0.2544-0.0493-0.3084-0.59760.63620.0010.548-0.05120.04450.5689-0.06030.5262105.0916102.621797.7011
63.2070.98641.45976.0405-2.28216.96150.3282-0.15820.5014-0.1515-0.2294-0.04-0.54060.6035-0.02540.5721-0.05880.15730.5109-0.08380.5379104.1007106.938999.699
73.96813.9441-2.19343.8394-1.96661.85590.1682-0.26231.61930.04980.09921.8302-0.1043-0.3068-0.34710.73890.05350.04680.625-0.07570.961682.9871101.0655109.0727
82.98831.2356-1.07071.1929-0.44870.43960.02580.22960.403-0.15890.2810.4986-0.4933-0.4624-0.09540.7891-0.04190.02740.5623-0.09260.754686.3731101.1331101.4727
97.78881.00362.93796.1730.8556.18350.3262-0.1289-0.16390.0899-0.40830.19390.72430.1838-0.00610.51660.06540.09840.4430.01840.557891.145286.1133100.3805
102.70260.3802-0.13310.5886-1.57997.1311-0.21520.5313-0.0428-0.0780.3546-0.183-1.1933-0.4647-0.13380.5673-0.0074-0.01610.5528-0.03980.576487.38592.73797.144
116.03670.22660.54241.16831.13921.1428-0.36090.1571.00480.0036-0.1756-0.3393-0.5764-0.30560.58591.0543-0.0789-0.00970.52410.08970.798695.149353.572589.8683
122.7323-0.36860.24623.33240.63986.6389-0.0427-0.2477-0.1186-0.00580.0198-0.00570.42010.28860.02680.5417-0.03130.01360.4260.13330.518697.261437.2378106.2295
131.66950.339-1.07552.55450.2244.83470.13360.137-0.17520.3354-0.10080.3161.2218-0.8679-0.03620.8759-0.14490.04270.62290.06040.629786.721327.840790.9346
148.3321-2.42440.26965.3197-1.29493.1268-0.0920.48040.1918-0.2895-0.0304-0.36190.33730.38180.1850.6737-0.02690.02410.60250.00290.586595.297240.48684.0788
150.05460.17780.43912.96270.39622.88550.1075-0.2187-0.5271-0.0909-0.28520.53890.4763-0.33430.16560.7596-0.1377-0.10370.62330.04710.613688.643838.242187.4349
164.12221.978-2.69745.2051-0.19928.3541-0.0463-0.0423-0.48650.3979-0.153-0.14280.35050.44060.28110.58370.0755-0.05780.49050.07240.677751.978177.8326133.9345
175.46662.56291.19775.45871.16695.9896-0.31560.6544-0.1896-0.51450.2703-0.2906-0.3750.46430.05020.6121-0.0674-0.01210.61430.05170.472651.9787.8983118.876
180.55650.84630.42181.50591.83578.1271-0.0106-0.09030.1609-0.0102-0.11490.3844-1.0014-1.00920.18890.87120.1541-0.05310.63740.10550.621842.437896.5377131.5891
196.15752.8084-2.33544.5818-2.62044.03440.0523-0.50710.68740.6623-0.0341-0.0308-0.42080.6297-0.07820.67320.067-0.07370.5809-0.03080.583849.930187.9127144.4097
200.2318-0.27770.86712.50241.05734.5077-0.2009-0.08290.1038-0.4313-0.34250.4646-0.1712-0.34470.48620.7170.03790.03440.49960.00070.588543.454189.5997140.675
217.04671.72510.64762.973-0.61024.0753-0.38150.61590.6265-0.03580.52090.3581-1.1408-0.0123-0.24020.9970.19-0.00120.5960.02690.571243.9153110.637685.0707
224.40841.6598-0.65686.2405-2.66277.11450.2051-0.0743-0.5229-0.09090.13480.36810.6441-0.6921-0.32580.4824-0.0074-0.13370.5343-0.00140.59336.748189.259791.7724
232.64972.23481.59655.65762.9495.31570.31490.1065-0.92830.31890.2352-1.12810.67880.6199-0.66520.58490.1426-0.0790.5711-0.0050.727953.91587.441193.0762
243.69731.8738-1.24444.3885-1.60270.82040.62160.1419-0.43880.4072-0.2541-0.7610.64690.9733-0.1210.51460.1303-0.07630.4270.09080.615857.602296.764397.7993
256.05193.994-1.65687.3614-4.51739.96390.3781-0.13320.42820.29630.14790.1922-0.7724-0.2889-0.56020.55160.1907-0.01520.48-0.04450.491551.2529106.02896.5663
264.74891.77873.0021.7062-0.85536.77150.11080.3735-0.2525-0.0368-0.1075-0.3983-0.03110.432-0.08570.50720.08370.00950.55750.00460.69155.179699.462791.582
274.9799-1.9827-1.86495.89321.15456.1363-0.03460.9843-0.0008-0.489-0.1566-0.00820.1769-1.00690.19330.9513-0.0143-0.18140.6945-0.04950.577280.557463.368690.8446
283.63560.23110.22273.70140.09513.86460.04420.0821-0.3140.14650.00030.95420.3562-0.8806-0.05320.6671-0.1473-0.08030.77180.00830.984463.795355.0957104.8998
297.77455.9665-0.57966.27670.49260.76191.7872-1.1227-0.8492.56-1.6215-0.4840.02350.4142-0.19791.2863-0.11890.00820.6527-0.03680.792974.834670.663120.0621
300.44681.22440.06097.046-0.62050.1719-0.157-0.3250.01721.0494-0.3203-0.95280.06550.1210.02720.9927-0.0989-0.06720.74660.00440.969574.961659.0889117.5877
310.70951.2310.13935.1919-0.57420.99050.1882-0.21820.34470.7058-0.01560.28410.35290.25810.02720.7768-0.0258-0.04190.68680.03240.719177.931170.4266112.5555
323.2322-0.8428-3.02558.17111.5146.35240.28030.33780.2-0.7161-0.30120.6634-0.4552-0.32050.00470.7173-0.0542-0.16850.4622-0.0420.651377.775772.4613101.4434
331.4923-0.49860.351.39670.26062.34790.2498-0.3063-0.46-0.4213-0.11460.37490.6699-0.2605-0.09210.6729-0.1603-0.04610.63760.00570.766779.725268.4193106.8419
Refinement TLS group
IDRefine-IDRefine TLS-IDSelection details
1X-RAY DIFFRACTION1chain 'A' and (resid 2 through 141 )
2X-RAY DIFFRACTION2chain 'A' and (resid 142 through 203 )
3X-RAY DIFFRACTION3chain 'A' and (resid 204 through 264 )
4X-RAY DIFFRACTION4chain 'B' and (resid 2 through 28 )
5X-RAY DIFFRACTION5chain 'B' and (resid 29 through 108 )
6X-RAY DIFFRACTION6chain 'B' and (resid 109 through 141 )
7X-RAY DIFFRACTION7chain 'B' and (resid 142 through 162 )
8X-RAY DIFFRACTION8chain 'B' and (resid 163 through 203 )
9X-RAY DIFFRACTION9chain 'B' and (resid 204 through 242 )
10X-RAY DIFFRACTION10chain 'B' and (resid 243 through 266 )
11X-RAY DIFFRACTION11chain 'C' and (resid 2 through 28 )
12X-RAY DIFFRACTION12chain 'C' and (resid 29 through 141 )
13X-RAY DIFFRACTION13chain 'C' and (resid 142 through 203 )
14X-RAY DIFFRACTION14chain 'C' and (resid 204 through 242 )
15X-RAY DIFFRACTION15chain 'C' and (resid 243 through 265 )
16X-RAY DIFFRACTION16chain 'D' and (resid 2 through 66 )
17X-RAY DIFFRACTION17chain 'D' and (resid 67 through 127 )
18X-RAY DIFFRACTION18chain 'D' and (resid 128 through 194 )
19X-RAY DIFFRACTION19chain 'D' and (resid 204 through 242 )
20X-RAY DIFFRACTION20chain 'D' and (resid 243 through 265 )
21X-RAY DIFFRACTION21chain 'E' and (resid 2 through 28 )
22X-RAY DIFFRACTION22chain 'E' and (resid 29 through 127 )
23X-RAY DIFFRACTION23chain 'E' and (resid 128 through 179 )
24X-RAY DIFFRACTION24chain 'E' and (resid 180 through 203 )
25X-RAY DIFFRACTION25chain 'E' and (resid 204 through 242 )
26X-RAY DIFFRACTION26chain 'E' and (resid 243 through 267 )
27X-RAY DIFFRACTION27chain 'F' and (resid 2 through 28 )
28X-RAY DIFFRACTION28chain 'F' and (resid 29 through 141 )
29X-RAY DIFFRACTION29chain 'F' and (resid 142 through 162 )
30X-RAY DIFFRACTION30chain 'F' and (resid 163 through 179 )
31X-RAY DIFFRACTION31chain 'F' and (resid 180 through 203 )
32X-RAY DIFFRACTION32chain 'F' and (resid 204 through 242 )
33X-RAY DIFFRACTION33chain 'F' and (resid 243 through 264 )

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