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- PDB-2o0l: Human spermidine synthase -

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Basic information

Entry
Database: PDB / ID: 2o0l
TitleHuman spermidine synthase
ComponentsSpermidine synthase
KeywordsTRANSFERASE / Spermidine Synthase / Structural Genomics / Structural Genomics Consortium / SGC
Function / homology
Function and homology information


Metabolism of polyamines / polyamine metabolic process / spermidine synthase / spermidine synthase activity / spermidine biosynthetic process / cellular response to leukemia inhibitory factor / protein homodimerization activity / identical protein binding / cytosol
Similarity search - Function
Spermidine/spermine synthase, eukaryotes / Spermidine synthase, tetramerisation domain / Polyamine biosynthesis domain, conserved site / Polyamine biosynthesis (PABS) domain signature. / Spermidine/spermine synthases / Polyamine biosynthesis domain / Spermidine synthase, tetramerisation domain / Spermidine synthase, tetramerisation domain superfamily / Spermidine synthase tetramerisation domain / Polyamine biosynthesis (PABS) domain profile. ...Spermidine/spermine synthase, eukaryotes / Spermidine synthase, tetramerisation domain / Polyamine biosynthesis domain, conserved site / Polyamine biosynthesis (PABS) domain signature. / Spermidine/spermine synthases / Polyamine biosynthesis domain / Spermidine synthase, tetramerisation domain / Spermidine synthase, tetramerisation domain superfamily / Spermidine synthase tetramerisation domain / Polyamine biosynthesis (PABS) domain profile. / Spermine/spermidine synthase domain / Spermidine Synthase; Chain: A, domain 2 / Vaccinia Virus protein VP39 / Roll / S-adenosyl-L-methionine-dependent methyltransferase superfamily / Rossmann fold / 3-Layer(aba) Sandwich / Mainly Beta / Alpha Beta
Similarity search - Domain/homology
Chem-S4M / Spermidine synthase
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 1.99 Å
AuthorsMin, J. / Wu, H. / Zeng, H. / Loppnau, P. / Weigelt, J. / Sundstrom, M. / Arrowsmith, C.H. / Edwards, A.M. / Bochkarev, A. / Plotnikov, A.N. / Structural Genomics Consortium (SGC)
CitationJournal: Biochemistry / Year: 2007
Title: Structure and mechanism of spermidine synthases.
Authors: Wu, H. / Min, J. / Ikeguchi, Y. / Zeng, H. / Dong, A. / Loppnau, P. / Pegg, A.E. / Plotnikov, A.N.
History
DepositionNov 27, 2006Deposition site: RCSB / Processing site: RCSB
Revision 1.0Dec 12, 2006Provider: repository / Type: Initial release
Revision 1.1May 1, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Advisory / Version format compliance
Revision 1.3Dec 27, 2023Group: Data collection / Database references / Derived calculations
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / 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: Spermidine synthase
B: Spermidine synthase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)68,7164
Polymers68,0032
Non-polymers7132
Water4,774265
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area4900 Å2
ΔGint-13 kcal/mol
Surface area21250 Å2
MethodPISA
Unit cell
Length a, b, c (Å)58.323, 60.593, 86.667
Angle α, β, γ (deg.)90.00, 108.96, 90.00
Int Tables number4
Space group name H-MP1211

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Components

#1: Protein Spermidine synthase / Putrescine aminopropyltransferase / SPDSY


Mass: 34001.746 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: SRM, SPS1 / Production host: Escherichia coli (E. coli) / References: UniProt: P19623, spermidine synthase
#2: Chemical ChemComp-S4M / 5'-[(S)-(3-AMINOPROPYL)(METHYL)-LAMBDA~4~-SULFANYL]-5'-DEOXYADENOSINE


Mass: 356.444 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C14H24N6O3S
#3: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 265 / 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: 42.21 %
Crystal growTemperature: 300 K / Method: vapor diffusion, hanging drop / pH: 7
Details: 20% PEG 3350, 0.2M Mg(OAc)2, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 300K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU / Wavelength: 1.54178 Å
DetectorType: RIGAKU / Detector: IMAGE PLATE / Date: Apr 13, 2006
RadiationMonochromator: varimax / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.54178 Å / Relative weight: 1
ReflectionResolution: 1.99→81.92 Å / Num. all: 36969 / Num. obs: 36969 / % possible obs: 99.4 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 5.3 % / Rmerge(I) obs: 0.121 / Net I/σ(I): 7.5

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Processing

Software
NameVersionClassification
REFMAC5.2.0019refinement
CrystalClear(MSC/RIGAKU)data collection
HKL-2000data reduction
HKL-2000data scaling
MOLREPphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT / Resolution: 1.99→81.92 Å / Cor.coef. Fo:Fc: 0.943 / Cor.coef. Fo:Fc free: 0.906 / SU B: 8.898 / SU ML: 0.132 / TLS residual ADP flag: LIKELY RESIDUAL / Cross valid method: THROUGHOUT / σ(F): 0 / σ(I): 0 / ESU R: 0.216 / ESU R Free: 0.195 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.26755 1945 5 %RANDOM
Rwork0.2062 ---
all0.20923 36969 --
obs0.20923 36969 98.63 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.4 Å / Solvent model: MASK
Displacement parametersBiso mean: 21.46 Å2
Baniso -1Baniso -2Baniso -3
1-1.25 Å20 Å2-0.33 Å2
2---0.38 Å20 Å2
3----1.08 Å2
Refinement stepCycle: LAST / Resolution: 1.99→81.92 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms4443 0 48 265 4756
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0170.0224596
X-RAY DIFFRACTIONr_bond_other_d
X-RAY DIFFRACTIONr_angle_refined_deg1.5211.9716225
X-RAY DIFFRACTIONr_angle_other_deg
X-RAY DIFFRACTIONr_dihedral_angle_1_deg6.7875556
X-RAY DIFFRACTIONr_dihedral_angle_2_deg36.31124.608217
X-RAY DIFFRACTIONr_dihedral_angle_3_deg14.71715787
X-RAY DIFFRACTIONr_dihedral_angle_4_deg19.1661524
X-RAY DIFFRACTIONr_chiral_restr0.1030.2681
X-RAY DIFFRACTIONr_gen_planes_refined0.0060.023483
X-RAY DIFFRACTIONr_gen_planes_other
X-RAY DIFFRACTIONr_nbd_refined0.210.22172
X-RAY DIFFRACTIONr_nbd_other
X-RAY DIFFRACTIONr_nbtor_refined0.30.23050
X-RAY DIFFRACTIONr_nbtor_other
X-RAY DIFFRACTIONr_xyhbond_nbd_refined0.1580.2324
X-RAY DIFFRACTIONr_xyhbond_nbd_other
X-RAY DIFFRACTIONr_metal_ion_refined
X-RAY DIFFRACTIONr_metal_ion_other
X-RAY DIFFRACTIONr_symmetry_vdw_refined0.1820.255
X-RAY DIFFRACTIONr_symmetry_vdw_other
X-RAY DIFFRACTIONr_symmetry_hbond_refined0.2110.211
X-RAY DIFFRACTIONr_symmetry_hbond_other
X-RAY DIFFRACTIONr_symmetry_metal_ion_refined
X-RAY DIFFRACTIONr_symmetry_metal_ion_other
X-RAY DIFFRACTIONr_mcbond_it0.7181.52904
X-RAY DIFFRACTIONr_mcbond_other
X-RAY DIFFRACTIONr_mcangle_it1.07924511
X-RAY DIFFRACTIONr_scbond_it2.04131977
X-RAY DIFFRACTIONr_scangle_it2.9224.51714
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
LS refinement shellResolution: 1.99→2.04 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.338 124 -
Rwork0.285 2445 -
obs--89.48 %
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)
10.81580.7268-0.79872.1675-1.89956.0630.0316-0.05230.1380.14960.13610.275-0.017-0.407-0.16770.00780.0130.01530.1084-0.02810.097213.316821.711267.3151
23.03680.2886-1.70956.1781-1.45761.23510.1772-0.13150.37470.4630.07810.4471-0.25710.043-0.25530.0936-0.02660.06960.0948-0.01660.042916.54228.416981.085
32.1143-0.50050.40860.1187-0.0791.3448-0.0150.05360.11270.010.0290.0340.0542-0.167-0.0140.0759-0.0050.03310.0935-0.01280.033821.109621.464875.2062
43.67031.8389-1.46042.5365-1.31551.30120.1228-0.04060.04220.2289-0.071-0.0187-0.10870.0652-0.05180.07520.0091-0.00250.0812-0.00410.049438.899124.727669.356
51.8921-0.3482-0.85992.667-0.45511.88130.1645-0.14030.01620.272-0.1481-0.2196-0.12220.1465-0.01640.1108-0.0168-0.02410.08080.00480.033642.431331.655576.2371
62.32251.0103-0.50592.2283-1.38620.87050.2829-0.31690.09270.3417-0.2218-0.0338-0.1368-0.0206-0.06110.1527-0.0590.0220.0901-0.0254-0.01729.777130.219583.2871
72.1772-0.28590.40632.14580.59220.94340.1302-0.08680.10710.1537-0.06750.1036-0.097-0.0936-0.06270.0907-0.01790.03830.0466-0.0220.041437.635841.674274.3586
87.2186-2.2361-0.59325.30630.53794.27920.03570.1530.0547-0.10170.00190.0906-0.21310.0104-0.03760.0936-0.01570.03260.04370.00430.064640.6643.804164.4324
93.22761.35921.16310.58150.58871.49070.0151-0.00640.25890.1564-0.03640.0859-0.0042-0.10160.02130.0160.01720.01290.0663-0.00210.112428.660830.731256.4899
1031.752512.2784.930712.8612.361711.65790.03640.4775-0.0364-0.22210.12830.41640.0411-0.0518-0.16460.06790.05920.01130.01930.0320.054134.31339.431952.9017
111.51421.6864-0.39022.9701-0.61820.15830.082-0.0317-0.03180.1087-0.1008-0.0349-0.05930.04120.01880.05410.00210.00620.0772-0.00660.04433.199328.186660.0114
121.0984-1.0464-0.01142.60870.2352.96060.05310.0419-0.1952-0.25360.0673-0.10980.10650.0445-0.12040.06180.01210.01650.0531-0.00030.098746.772232.818858.5246
135.51753.8789-5.06527.6161-2.17535.0428-0.0254-0.3252-0.14670.4538-0.1925-0.4474-0.16870.35860.21790.05770.0016-0.0660.10850.04370.065648.6517.842971.5007
142.09-0.55722.51250.6372-1.34585.53-0.05340.0437-0.0160.0031-0.0066-0.04550.07290.08810.060.0534-0.00430.01130.0573-0.00620.102339.448920.676558.0684
1514.59934.5749-5.988710.07030.854315.0278-0.19690.15630.5053-0.97250.0952-0.0139-0.8780.13210.10170.0706-0.0140.0017-0.00390.03310.062734.792328.956644.6893
1615.72668.7037-10.121113.66452.033924.1305-0.4654-0.5668-0.97431.57430.227-0.5311.3853-1.68750.23840.0456-0.0595-0.00580.15260.00390.07014.197316.890761.4257
173.4309-0.78491.84720.605-0.11591.2157-0.0062-0.0736-0.17880.0882-0.00240.10540.0383-0.07240.00850.0326-0.00280.04470.0999-0.01510.058513.287512.608762.2916
181.85134.72072.101930.777-3.80316.86630.18860.0057-0.3308-0.1364-0.21571.20430.2602-0.07170.0271-0.06910.02440.03030.1110.00290.17512.60028.091549.6763
192.43810.8295-0.0840.9507-0.36870.9896-0.08570.0443-0.1797-0.02680.00530.07610.0278-0.08040.08040.02710.00050.0070.0861-0.02490.075612.541410.707850.7637
200.63210.3996-0.05311.03710.08631.4668-0.00220.0487-0.0974-0.11040.00020.0269-0.03570.02190.0020.03480.0055-0.00050.0648-0.00920.081329.30024.172140.0169
212.1026-1.5835-0.78183.5173-0.91531.38630.13710.1737-0.3075-0.1737-0.11130.1929-0.0594-0.1953-0.02570.01630.0122-0.04650.0693-0.04270.090112.40415.524940.8162
221.47140.2517-0.1693.4664-0.36211.850.052-0.039-0.13330.1922-0.06790.18260.0326-0.150.01590.0309-0.01280.0160.056-0.01340.094824.9628-5.898442.5017
230.3262-1.67721.4979.0167-5.2522.0930.0162-1.327-0.03491.0521-0.12380.15790.63040.46460.10760.06320.06010.04970.06210.05210.154920.0062-6.836256.1447
242.7824-0.13410.62274.5166-0.33012.7434-0.044-0.1542-0.04070.2650.1290.11970.2132-0.0688-0.0850.04870.0054-0.00030.08170.01340.105533.4303-7.014748.388
255.7333-5.7512-0.97699.95492.19473.0352-0.1057-0.0651-0.49070.3556-0.1370.30430.1745-0.03610.24270.0635-0.02260.0290.06570.00720.050830.783.697364.4593
267.6388-6.1247-5.858612.0674.75516.22610.1315-0.43270.02920.06540.0679-0.15250.04780.2585-0.19940.0175-0.0045-0.00670.06760.02770.065338.827-6.310557.7113
271.6582-1.7557-0.12952.44210.24360.02960.1002-0.0482-0.0608-0.128-0.09080.0356-0.01710.021-0.00950.04860.013-0.00760.08630.00240.042730.21299.179256.0106
280.11590.19830.41532.0379-0.35832.16130.06020.01080.04420.16040.0107-0.2269-0.24180.0375-0.0710.03290.0040.00240.06360.00340.115942.80221.946848.1231
290.37450.04490.29791.7323-0.79923.40840.07630.1080.0228-0.2139-0.0282-0.04090.03130.131-0.04810.0632-0.00320.02450.0754-0.00950.091236.726315.672943.5317
3010.45211.17023.74210.07285.45858.6493-0.0664-0.262-0.55240.21570.0046-0.25280.67950.24290.06180.07360.02230.01530.03280.01820.071840.49278.412266.1856
Refinement TLS group
IDRefine-IDRefine TLS-IDAuth asym-IDLabel asym-IDAuth seq-IDLabel seq-ID
1X-RAY DIFFRACTION1AA16 - 3618 - 38
2X-RAY DIFFRACTION2AA37 - 5439 - 56
3X-RAY DIFFRACTION3AA55 - 7257 - 74
4X-RAY DIFFRACTION4AA73 - 9375 - 95
5X-RAY DIFFRACTION5AA94 - 12196 - 123
6X-RAY DIFFRACTION6AA122 - 146124 - 148
7X-RAY DIFFRACTION7AA147 - 175149 - 177
8X-RAY DIFFRACTION8AA187 - 202189 - 204
9X-RAY DIFFRACTION9AA203 - 218205 - 220
10X-RAY DIFFRACTION10AA219 - 225221 - 227
11X-RAY DIFFRACTION11AA226 - 248228 - 250
12X-RAY DIFFRACTION12AA249 - 263251 - 265
13X-RAY DIFFRACTION13AA264 - 276266 - 278
14X-RAY DIFFRACTION14AA277 - 294279 - 296
15X-RAY DIFFRACTION15AA295 - 300297 - 302
16X-RAY DIFFRACTION16BB15 - 2017 - 22
17X-RAY DIFFRACTION17BB21 - 3823 - 40
18X-RAY DIFFRACTION18BB39 - 4541 - 47
19X-RAY DIFFRACTION19BB46 - 7748 - 79
20X-RAY DIFFRACTION20BB78 - 12480 - 126
21X-RAY DIFFRACTION21BB125 - 144127 - 146
22X-RAY DIFFRACTION22BB145 - 177147 - 179
23X-RAY DIFFRACTION23BB178 - 186180 - 188
24X-RAY DIFFRACTION24BB187 - 207189 - 209
25X-RAY DIFFRACTION25BB208 - 220210 - 222
26X-RAY DIFFRACTION26BB221 - 228223 - 230
27X-RAY DIFFRACTION27BB229 - 248231 - 250
28X-RAY DIFFRACTION28BB249 - 263251 - 265
29X-RAY DIFFRACTION29BB264 - 290266 - 292
30X-RAY DIFFRACTION30BB291 - 299293 - 301

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