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- PDB-1nzc: The high resolution structures of RmlC from Streptococcus suis in... -

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Basic information

Entry
Database: PDB / ID: 1nzc
TitleThe high resolution structures of RmlC from Streptococcus suis in complex with dTDP-D-xylose
ComponentsdTDP-6-deoxy-D-xylo-4-hexulose 3,5-epimerase
KeywordsISOMERASE / Jelly roll-like structure / Beta sheet
Function / homology
Function and homology information


dTDP-4-dehydrorhamnose 3,5-epimerase / dTDP-4-dehydrorhamnose 3,5-epimerase activity / dTDP-rhamnose biosynthetic process / extracellular polysaccharide biosynthetic process / cytosol
Similarity search - Function
dTDP-4-dehydrorhamnose 3,5-epimerase-related / dTDP-4-dehydrorhamnose 3,5-epimerase / RmlC-like cupin domain superfamily / Jelly Rolls / RmlC-like jelly roll fold / Jelly Rolls / Sandwich / Mainly Beta
Similarity search - Domain/homology
NICKEL (II) ION / THYMIDINE-5'-DIPHOSPHO-BETA-D-XYLOSE / dTDP-4-dehydrorhamnose 3,5-epimerase
Similarity search - Component
Biological speciesStreptococcus suis (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.8 Å
AuthorsDong, C. / Major, L.L. / Allen, A. / Blankenfeldt, W. / Maskell, D. / Naismith, J.H.
CitationJournal: Structure / Year: 2003
Title: High-Resolution Structures of RmlC from Streptococcus suis in Complex with Substrate Analogs Locate the Active Site of This Class of Enzyme
Authors: Dong, C. / Major, L.L. / Allen, A. / Blankenfeldt, W. / Maskell, D. / Naismith, J.H.
History
DepositionFeb 17, 2003Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jun 24, 2003Provider: repository / Type: Initial release
Revision 1.1Apr 29, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Aug 16, 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 / pdbx_struct_conn_angle / struct_conn / struct_ncs_dom_lim / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_conn.pdbx_dist_value / _struct_conn.ptnr1_auth_asym_id / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr1_symmetry / _struct_conn.ptnr2_auth_asym_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_id / _struct_conn.ptnr2_label_seq_id / _struct_conn.ptnr2_symmetry / _struct_ncs_dom_lim.beg_auth_comp_id / _struct_ncs_dom_lim.end_auth_comp_id / _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: dTDP-6-deoxy-D-xylo-4-hexulose 3,5-epimerase
B: dTDP-6-deoxy-D-xylo-4-hexulose 3,5-epimerase
C: dTDP-6-deoxy-D-xylo-4-hexulose 3,5-epimerase
D: dTDP-6-deoxy-D-xylo-4-hexulose 3,5-epimerase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)92,20810
Polymers89,9534
Non-polymers2,2556
Water15,745874
1
A: dTDP-6-deoxy-D-xylo-4-hexulose 3,5-epimerase
B: dTDP-6-deoxy-D-xylo-4-hexulose 3,5-epimerase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)46,1045
Polymers44,9772
Non-polymers1,1273
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area5490 Å2
ΔGint-20 kcal/mol
Surface area16730 Å2
MethodPISA
2
C: dTDP-6-deoxy-D-xylo-4-hexulose 3,5-epimerase
D: dTDP-6-deoxy-D-xylo-4-hexulose 3,5-epimerase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)46,1045
Polymers44,9772
Non-polymers1,1273
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area5790 Å2
ΔGint-38 kcal/mol
Surface area16180 Å2
MethodPISA
Unit cell
Length a, b, c (Å)50.850, 140.866, 53.699
Angle α, β, γ (deg.)90.00, 92.72, 90.00
Int Tables number4
Cell settingmonoclinic
Space group name H-MP1211
Noncrystallographic symmetry (NCS)NCS domain:
IDEns-IDDetails
11A
21B
31C
41D
51A
61B
71C
81D
91A
101B
111C
121D
131A
141B
151C
161D
171A
181B
191C
201D
211A
221B
231C
241D
251A
261B
271C
281D
291A
301B
311C
321D
331A
341B
351C
361D
371A
381B
391C
401D
411A
421B
431C
441D
451A
461B
471C
481D
491A
501B
511C
521D
531A
541B
551C
561D
571A
581B
591C
601D
611A
621B
631C
641D
651A
661B
671C
681D
691A
701B
711C
721D
731A
741B
751C
761D

NCS domain segments:

Ens-ID: 1

Dom-IDComponent-IDBeg auth comp-IDBeg label comp-IDEnd auth comp-IDEnd label comp-IDRefine codeAuth asym-IDLabel asym-IDAuth seq-IDLabel seq-ID
11LEULEUPROPRO2AA22 - 2722 - 27
21LEULEUPROPRO2BB22 - 2722 - 27
31LEULEUPROPRO2CC22 - 2722 - 27
41LEULEUPROPRO2DD22 - 2722 - 27
52LEULEUSERSER2AA60 - 6760 - 67
62LEULEUSERSER2BB60 - 6760 - 67
72LEULEUSERSER2CC60 - 6760 - 67
82LEULEUSERSER2DD60 - 6760 - 67
93VALVALALAALA4AA71 - 7771 - 77
103VALVALALAALA4BB71 - 7771 - 77
113VALVALALAALA4CC71 - 7771 - 77
123VALVALALAALA4DD71 - 7771 - 77
134TRPTRPVALVAL2AA80 - 8680 - 86
144TRPTRPVALVAL2BB80 - 8680 - 86
154TRPTRPVALVAL2CC80 - 8680 - 86
164TRPTRPVALVAL2DD80 - 8680 - 86
175GLYGLYGLUGLU2AA90 - 10190 - 101
185GLYGLYGLUGLU2BB90 - 10190 - 101
195GLYGLYGLUGLU2CC90 - 10190 - 101
205GLYGLYGLUGLU2DD90 - 10190 - 101
216GLYGLYILEILE2AA106 - 113106 - 113
226GLYGLYILEILE2BB106 - 113106 - 113
236GLYGLYILEILE2CC106 - 113106 - 113
246GLYGLYILEILE2DD106 - 113106 - 113
257SERSERPROPRO2AA116 - 122116 - 122
267SERSERPROPRO2BB116 - 122116 - 122
277SERSERPROPRO2CC116 - 122116 - 122
287SERSERPROPRO2DD116 - 122116 - 122
298VALVALVALVAL2AA125 - 131125 - 131
308VALVALVALVAL2BB125 - 131125 - 131
318VALVALVALVAL2CC125 - 131125 - 131
328VALVALVALVAL2DD125 - 131125 - 131
339VALVALVALVAL2AA136 - 142136 - 142
349VALVALVALVAL2BB136 - 142136 - 142
359VALVALVALVAL2CC136 - 142136 - 142
369VALVALVALVAL2DD136 - 142136 - 142
3710PHEPHEMETMET4AA6 - 216 - 21
3810PHEPHEMETMET4BB6 - 216 - 21
3910PHEPHEMETMET4CC6 - 216 - 21
4010PHEPHEMETMET4DD6 - 216 - 21
4111PROPROLYSLYS4AA27 - 5927 - 59
4211PROPROLYSLYS4BB27 - 5927 - 59
4311PROPROLYSLYS4CC27 - 5927 - 59
4411PROPROLYSLYS4DD27 - 5927 - 59
4512ARGARGASNASN6AA68 - 7068 - 70
4612ARGARGASNASN6BB68 - 7068 - 70
4712ARGARGASNASN6CC68 - 7068 - 70
4812ARGARGASNASN6DD68 - 7068 - 70
4913GLUGLUPROPRO6AA78 - 7978 - 79
5013GLUGLUPROPRO6BB78 - 7978 - 79
5113GLUGLUPROPRO6CC78 - 7978 - 79
5213GLUGLUPROPRO6DD78 - 7978 - 79
5314ALAALAGLYGLY6AA87 - 8987 - 89
5414ALAALAGLYGLY6BB87 - 8987 - 89
5514ALAALAGLYGLY6CC87 - 8987 - 89
5614ALAALAGLYGLY6DD87 - 8987 - 89
5715GLYGLYPHEPHE6AA102 - 105102 - 105
5815GLYGLYPHEPHE6BB102 - 105102 - 105
5915GLYGLYPHEPHE6CC102 - 105102 - 105
6015GLYGLYPHEPHE6DD102 - 105102 - 105
6116ASPASPALAALA6AA114 - 115114 - 115
6216ASPASPALAALA6BB114 - 115114 - 115
6316ASPASPALAALA6CC114 - 115114 - 115
6416ASPASPALAALA6DD114 - 115114 - 115
6517ARGARGGLYGLY6AA123 - 124123 - 124
6617ARGARGGLYGLY6BB123 - 124123 - 124
6717ARGARGGLYGLY6CC123 - 124123 - 124
6817ARGARGGLYGLY6DD123 - 124123 - 124
6918LEULEUPHEPHE6AA132 - 135132 - 135
7018LEULEUPHEPHE6BB132 - 135132 - 135
7118LEULEUPHEPHE6CC132 - 135132 - 135
7218LEULEUPHEPHE6DD132 - 135132 - 135
7319ASNASNLEULEU5AA143 - 197143 - 197
7419ASNASNLEULEU5BB143 - 197143 - 197
7519ASNASNLEULEU5CC143 - 197143 - 197
7619ASNASNLEULEU5DD143 - 197143 - 197

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Components

#1: Protein
dTDP-6-deoxy-D-xylo-4-hexulose 3,5-epimerase / E.C.5.1.3.13 / dTDP-4-dehydrorhamnose 3 / 5-epimerase


Mass: 22488.295 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Streptococcus suis (bacteria) / Strain: serotype 2 / Gene: rmlc / Plasmid: pET21(+) / Species (production host): Escherichia coli / Production host: Escherichia coli BL21(DE3) (bacteria) / Strain (production host): BL21(DE3)
References: UniProt: Q8GIQ0, dTDP-4-dehydrorhamnose 3,5-epimerase
#2: Chemical
ChemComp-TDX / THYMIDINE-5'-DIPHOSPHO-BETA-D-XYLOSE


Mass: 534.303 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C15H24N2O15P2
#3: Chemical ChemComp-NI / NICKEL (II) ION


Mass: 58.693 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Ni
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 874 / 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: 1.88 Å3/Da / Density % sol: 33.9 %
Crystal growTemperature: 298 K / Method: vapor diffusion, sitting drop / pH: 8.2
Details: 0.1 M Tris, 4 mM NiCl2,10 mM dTDP-D-xylose, 35% PEG 2000, pH 8.2, VAPOR DIFFUSION, SITTING DROP, temperature 298K
Crystal grow
*PLUS
Method: vapor diffusion, sitting drop
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDDetailsChemical formula
17 mg/mlprotein1drop
20.1 MTris-HCl1reservoirpH8.2
34 mM1reservoirNiCl2
435 %PEG20001reservoir
510 mMdTDP-D-xylose1drop

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Data collection

DiffractionMean temperature: 120 K
Diffraction sourceSource: SYNCHROTRON / Site: SRS / Beamline: PX14.1 / Wavelength: 1.488 Å
DetectorType: ADSC QUANTUM 4 / Detector: CCD / Date: Oct 28, 2001
RadiationMonochromator: Liquid gallium cooled, bent, triangulary Si111
Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.488 Å / Relative weight: 1
ReflectionResolution: 1.8→50.79 Å / Num. all: 63995 / Num. obs: 63969 / % possible obs: 91.8 % / Observed criterion σ(F): 2.96 / Observed criterion σ(I): 3.1 / Redundancy: 5.3 % / Biso Wilson estimate: 21.38 Å2 / Rmerge(I) obs: 0.126 / Rsym value: 0.117 / Net I/σ(I): 3.8
Reflection shellResolution: 1.8→1.81 Å / Redundancy: 2.1 % / Rmerge(I) obs: 0.112 / Mean I/σ(I) obs: 8.1 / Num. unique all: 500 / Rsym value: 0.085 / % possible all: 43.3
Reflection
*PLUS
Num. obs: 63995 / Num. measured all: 659635 / Rmerge(I) obs: 0.117
Reflection shell
*PLUS
% possible obs: 43.3 % / Rmerge(I) obs: 0.085

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Processing

Software
NameVersionClassification
MOSFLMdata reduction
SCALAdata scaling
MOLREPphasing
REFMAC5.1.19refinement
CCP4(SCALA)data scaling
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB entry 1NYW
Resolution: 1.8→70.71 Å / Cor.coef. Fo:Fc: 0.962 / Cor.coef. Fo:Fc free: 0.941 / SU B: 3.022 / SU ML: 0.094 / Cross valid method: THROUGHOUT / σ(F): 2.574 / ESU R Free: 0.142 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.21562 3217 5 %RANDOM
Rwork0.16445 ---
obs0.16698 60716 91.8 %-
all-87974 --
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.4 Å / Solvent model: BABINET MODEL WITH MASK
Displacement parametersBiso mean: 17.913 Å2
Baniso -1Baniso -2Baniso -3
1--0.44 Å20 Å2-0.03 Å2
2---0.02 Å20 Å2
3---0.46 Å2
Refine analyzeLuzzati coordinate error free: 0.142 Å
Refinement stepCycle: LAST / Resolution: 1.8→70.71 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms6304 0 138 874 7316
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0140.0216627
X-RAY DIFFRACTIONr_bond_other_d0.0030.025736
X-RAY DIFFRACTIONr_angle_refined_deg1.5771.9699010
X-RAY DIFFRACTIONr_angle_other_deg0.911313417
X-RAY DIFFRACTIONr_dihedral_angle_1_deg7.415776
X-RAY DIFFRACTIONr_chiral_restr0.1030.2941
X-RAY DIFFRACTIONr_gen_planes_refined0.0070.027316
X-RAY DIFFRACTIONr_gen_planes_other0.0050.021388
X-RAY DIFFRACTIONr_nbd_refined0.1960.21187
X-RAY DIFFRACTIONr_nbd_other0.2560.26640
X-RAY DIFFRACTIONr_nbtor_other0.0890.23658
X-RAY DIFFRACTIONr_xyhbond_nbd_refined0.1760.2622
X-RAY DIFFRACTIONr_symmetry_vdw_refined0.2890.231
X-RAY DIFFRACTIONr_symmetry_vdw_other0.2710.2117
X-RAY DIFFRACTIONr_symmetry_hbond_refined0.350.281
X-RAY DIFFRACTIONr_mcbond_it0.7471.53884
X-RAY DIFFRACTIONr_mcangle_it1.29426246
X-RAY DIFFRACTIONr_scbond_it1.84732743
X-RAY DIFFRACTIONr_scangle_it2.8824.52764
X-RAY DIFFRACTIONr_rigid_bond_restr1.11926627
X-RAY DIFFRACTIONr_sphericity_free2.8862927
X-RAY DIFFRACTIONr_sphericity_bonded1.06926439
Refine LS restraints NCS

Ens-ID: 1 / Refine-ID: X-RAY DIFFRACTION

Dom-IDAuth asym-IDNumberTypeRms dev position (Å)Weight position
1A954tight positional0.050.05
2B954tight positional0.10.05
3C954tight positional0.050.05
4D954tight positional0.040.05
1A1725medium positional0.710.5
2B1725medium positional1.20.5
3C1725medium positional0.690.5
4D1725medium positional0.660.5
1A282loose positional0.985
2B282loose positional0.95
3C282loose positional0.745
4D282loose positional0.595
1A954tight thermal0.110.5
2B954tight thermal0.110.5
3C954tight thermal0.090.5
4D954tight thermal0.10.5
1A1725medium thermal0.762
2B1725medium thermal0.832
3C1725medium thermal0.542
4D1725medium thermal0.692
1A282loose thermal2.0610
2B282loose thermal2.6110
3C282loose thermal0.8810
4D282loose thermal2.9710
LS refinement shellResolution: 1.8→1.847 Å / Rfactor Rfree error: 0.142 / Total num. of bins used: 20
RfactorNum. reflection
Rfree0.26 121
Rwork0.148 2436
obs-2436
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)
11.00020.01740.35481.3336-0.12161.0936-0.026-0.14040.02060.2321-0.0144-0.1809-0.0130.17110.04030.03610.0125-0.0270.08760.01250.074515.673-0.98719.085
20.85350.11450.32390.9506-0.10140.9211-0.02890.03590.0402-0.13430.03050.2212-0.0153-0.1725-0.00160.01610.0146-0.01520.06660.01490.098-5.832-0.0311.687
31.02680.28390.31870.61640.06120.89710.0463-0.0758-0.02780.067-0.0209-0.1540.05040.0519-0.02540.035-0.0070.00490.0081-0.02050.057323.214103.94858.751
40.92660.33690.37280.91010.23090.815-0.07760.15240.0791-0.19070.05530.0863-0.0489-0.06270.02230.0514-0.03340.01320.0580.00170.0258.46106.13835.697
Refinement TLS group
IDRefine-IDRefine TLS-IDAuth asym-IDLabel asym-IDAuth seq-IDLabel seq-ID
1X-RAY DIFFRACTION1AA2 - 1972 - 197
2X-RAY DIFFRACTION2BB2 - 1972 - 197
3X-RAY DIFFRACTION3CC4 - 1974 - 197
4X-RAY DIFFRACTION4DD4 - 1974 - 197
Refinement
*PLUS
Rfactor Rfree: 0.216 / Rfactor Rwork: 0.164
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONr_bond_d0.014
X-RAY DIFFRACTIONr_angle_d
X-RAY DIFFRACTIONr_angle_deg1.58
LS refinement shell
*PLUS
Highest resolution: 1.8 Å / Rfactor Rfree: 0.26

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