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- PDB-1z6z: Crystal Structure of Human Sepiapterin Reductase in complex with NADP+ -

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Basic information

Entry
Database: PDB / ID: 1z6z
TitleCrystal Structure of Human Sepiapterin Reductase in complex with NADP+
ComponentsSepiapterin reductase
KeywordsOXIDOREDUCTASE / short-chain dehydrogenase/reductase / sepiapterin reductase / human / Structural Genomics / Structural Genomics Consortium / SGC
Function / homology
Function and homology information


sepiapterin reductase (L-erythro-7,8-dihydrobiopterin forming) / sepiapterin reductase (NADP+) activity / aldo-keto reductase (NADPH) activity / tetrahydrobiopterin biosynthetic process / eNOS activation / Tetrahydrobiopterin (BH4) synthesis, recycling, salvage and regulation / nitric oxide biosynthetic process / NADP binding / extracellular exosome / nucleoplasm / cytosol
Similarity search - Function
Sepiapterin reductase / short chain dehydrogenase / Short-chain dehydrogenase/reductase SDR / NAD(P)-binding Rossmann-like Domain / NAD(P)-binding domain superfamily / Rossmann fold / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE / Sepiapterin reductase
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 2.5 Å
AuthorsUgochukwu, E. / Kavanagh, K. / Ng, S. / Arrowsmith, C. / Edwards, A. / Sundstrom, M. / von Delft, F. / Oppermann, U. / Structural Genomics Consortium (SGC)
CitationJournal: To be Published
Title: Crystal Structure of Human Sepiapterin Reductase
Authors: Ugochukwu, E. / Kavanagh, K. / Ng, S. / Arrowsmith, C. / Edwards, A. / Sundstrom, M. / von Delft, F. / Oppermann, U.
History
DepositionMar 23, 2005Deposition site: RCSB / Processing site: RCSB
Revision 1.0Apr 5, 2005Provider: repository / Type: Initial release
Revision 1.1Apr 30, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Advisory / Version format compliance
Revision 1.3Apr 4, 2018Group: Data collection / Category: diffrn_source / Item: _diffrn_source.type
Revision 1.4Aug 23, 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_ncs_dom_lim / 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_ncs_dom_lim.beg_auth_comp_id / _struct_ncs_dom_lim.beg_label_asym_id / _struct_ncs_dom_lim.end_auth_comp_id / _struct_ncs_dom_lim.end_label_asym_id / _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

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Assembly

Deposited unit
A: Sepiapterin reductase
B: Sepiapterin reductase
C: Sepiapterin reductase
D: Sepiapterin reductase
E: Sepiapterin reductase
F: Sepiapterin reductase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)188,24724
Polymers183,3006
Non-polymers4,94618
Water4,342241
1
A: Sepiapterin reductase
B: Sepiapterin reductase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)62,7898
Polymers61,1002
Non-polymers1,6896
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area6950 Å2
ΔGint-80 kcal/mol
Surface area21450 Å2
MethodPISA
2
C: Sepiapterin reductase
D: Sepiapterin reductase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)62,7649
Polymers61,1002
Non-polymers1,6647
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area6990 Å2
ΔGint-83 kcal/mol
Surface area21040 Å2
MethodPISA
3
E: Sepiapterin reductase
F: Sepiapterin reductase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)62,6937
Polymers61,1002
Non-polymers1,5935
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area6730 Å2
ΔGint-73 kcal/mol
Surface area20200 Å2
MethodPISA
Unit cell
Length a, b, c (Å)55.274, 95.001, 162.825
Angle α, β, γ (deg.)90.00, 90.57, 90.00
Int Tables number4
Space group name H-MP1211
Noncrystallographic symmetry (NCS)NCS domain:
IDEns-IDDetails
11A
21B
31C
41D
51E
61F
71A
81B
91C
101D
111E
121F
131A
141C
151A
161B
171C
181D
191E
201F
211A
221B
231C
241D
251E
261F
271A
281B
291C
301D
311E
321F
331A
341B
351C
361D
371E
381F
12B
22C
32D
42E
52F

NCS domain segments:
Dom-IDComponent-IDEns-IDBeg auth comp-IDBeg label comp-IDEnd auth comp-IDEnd label comp-IDRefine codeAuth asym-IDLabel asym-IDAuth seq-IDLabel seq-ID
111LEULEUHISHIS6AA-5 - 017 - 22
211LEULEUHISHIS6BB-5 - 017 - 22
311LEULEUHISHIS6CC-5 - 017 - 22
411LEULEUHISHIS6DD-5 - 017 - 22
511TYRTYRHISHIS6EE-4 - 018 - 22
611LEULEUHISHIS6FF-5 - 017 - 22
721METMETLEULEU1AA1 - 5123 - 73
821METMETLEULEU1BB1 - 5123 - 73
921METMETLEULEU1CC1 - 5123 - 73
1021METMETLEULEU1DD1 - 5123 - 73
1121METMETLEULEU1EE1 - 5123 - 73
1221METMETLEULEU1FF1 - 5123 - 73
1331GLYGLYLEULEU6AA52 - 5874 - 80
1431GLYGLYLEULEU6CC52 - 5874 - 80
1541ARGARGALAALA1AA59 - 7981 - 101
1641LEULEUALAALA1BB58 - 7980 - 101
1741ARGARGALAALA1CC59 - 7981 - 101
1841LEULEUALAALA1DD58 - 7980 - 101
1941LEULEUALAALA1EE58 - 7980 - 101
2041LEULEUALAALA1FF58 - 7980 - 101
2151LEULEULEULEU6AA80 - 89102 - 111
2251LEULEULEULEU6BB80 - 89102 - 111
2351LEULEULEULEU6CC80 - 89102 - 111
2451LEULEULEULEU6DD80 - 89102 - 111
2551LEULEULEULEU6EE80 - 89102 - 111
2651LEULEULEULEU6FF80 - 89102 - 111
2761GLNGLNTYRTYR1AA90 - 256112 - 278
2861GLNGLNTYRTYR1BB90 - 256112 - 278
2961GLNGLNTYRTYR1CC90 - 256112 - 278
3061GLNGLNTYRTYR1DD90 - 256112 - 278
3161GLNGLNTYRTYR1EE90 - 256112 - 278
3261GLNGLNTYRTYR1FF90 - 256112 - 278
3371NAPNAPNAPNAP1AJ801
3471NAPNAPNAPNAP1BL802
3571NAPNAPNAPNAP1CP803
3671NAPNAPNAPNAP1DS804
3771NAPNAPNAPNAP1EV805
3871NAPNAPNAPNAP1FX806
112ASPASPLYSLYS1BB257 - 258279 - 280
212ASPASPLYSLYS1CC257 - 258279 - 280
312ASPASPLYSLYS1DD257 - 258279 - 280
412ASPASPLYSLYS1EE257 - 258279 - 280
512ASPASPLYSLYS1FF257 - 258279 - 280

NCS ensembles :
ID
1
2

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Components

#1: Protein
Sepiapterin reductase / SPR


Mass: 30550.080 Da / Num. of mol.: 6
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: SPR / Plasmid: SPRA-c005 / Species (production host): Escherichia coli / Production host: Escherichia coli BL21(DE3) (bacteria) / Strain (production host): BL21-DE3
References: UniProt: P35270, sepiapterin reductase (L-erythro-7,8-dihydrobiopterin forming)
#2: Chemical ChemComp-SO4 / SULFATE ION


Mass: 96.063 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: SO4
#3: Chemical
ChemComp-CL / CHLORIDE ION


Mass: 35.453 Da / Num. of mol.: 11 / Source method: obtained synthetically / Formula: Cl
#4: Chemical
ChemComp-NAP / NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE / 2'-MONOPHOSPHOADENOSINE 5'-DIPHOSPHORIBOSE


Mass: 743.405 Da / Num. of mol.: 6 / Source method: obtained synthetically / Formula: C21H28N7O17P3
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 241 / 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: 2.3 Å3/Da / Density % sol: 47.1 %
Crystal growTemperature: 291 K / Method: vapor diffusion, sitting drop / pH: 5.5
Details: PEG3350, lithium sulphate, BIS-TRIS, pH 5.5, VAPOR DIFFUSION, SITTING DROP, temperature 291K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: ROTATING ANODE / Type: OTHER / Wavelength: 1.542 Å
DetectorType: RIGAKU RAXIS HTC / Detector: IMAGE PLATE / Date: Jan 7, 2005
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.542 Å / Relative weight: 1
ReflectionResolution: 2.5→62 Å / Num. obs: 52238 / % possible obs: 89.4 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0
Reflection shellResolution: 2.5→2.64 Å / % possible all: 76.2

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Processing

Software
NameVersionClassification
REFMAC5.2.0005refinement
MOSFLMdata reduction
CCP4(SCALA)data scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 1SEP.pdb
Resolution: 2.5→47.1 Å / Cor.coef. Fo:Fc: 0.93 / Cor.coef. Fo:Fc free: 0.894 / TLS residual ADP flag: LIKELY RESIDUAL / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R Free: 0.319 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.24463 2622 5 %RANDOM
Rwork0.20513 ---
all0.20707 49602 --
obs0.20707 49602 89.42 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
Displacement parametersBiso mean: 28.298 Å2
Baniso -1Baniso -2Baniso -3
1--0.19 Å20 Å2-0.36 Å2
2---1.25 Å20 Å2
3---1.43 Å2
Refinement stepCycle: LAST / Resolution: 2.5→47.1 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms11571 0 304 241 12116
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0080.02212068
X-RAY DIFFRACTIONr_angle_refined_deg1.1152.0316433
X-RAY DIFFRACTIONr_dihedral_angle_1_deg5.06451552
X-RAY DIFFRACTIONr_dihedral_angle_2_deg37.03124.083436
X-RAY DIFFRACTIONr_dihedral_angle_3_deg14.531151961
X-RAY DIFFRACTIONr_dihedral_angle_4_deg17.8571580
X-RAY DIFFRACTIONr_chiral_restr0.0660.21949
X-RAY DIFFRACTIONr_gen_planes_refined0.0030.028836
X-RAY DIFFRACTIONr_nbd_refined0.1890.25085
X-RAY DIFFRACTIONr_nbtor_refined0.30.28243
X-RAY DIFFRACTIONr_xyhbond_nbd_refined0.1320.2472
X-RAY DIFFRACTIONr_symmetry_vdw_refined0.1910.2140
X-RAY DIFFRACTIONr_symmetry_hbond_refined0.1290.27
X-RAY DIFFRACTIONr_mcbond_it0.41.57943
X-RAY DIFFRACTIONr_mcangle_it0.727212301
X-RAY DIFFRACTIONr_scbond_it1.2134625
X-RAY DIFFRACTIONr_scangle_it1.9384.54132
Refine LS restraints NCS

Refine-ID: X-RAY DIFFRACTION

Ens-IDDom-IDAuth asym-IDNumberTypeRms dev position (Å)Weight position
11A1760tight positional0.040.05
12B1760tight positional0.030.05
13C1760tight positional0.040.05
14D1760tight positional0.030.05
15E1760tight positional0.030.05
16F1760tight positional0.030.05
21B14tight positional0.020.05
22C14tight positional0.040.05
23D14tight positional0.030.05
24E14tight positional0.020.05
25F14tight positional0.030.05
11A113loose positional1.415
12B113loose positional0.75
13C113loose positional0.85
14D113loose positional0.765
15E113loose positional0.65
16F113loose positional0.985
11A1760tight thermal1.910
12B1760tight thermal1.7610
13C1760tight thermal1.8510
14D1760tight thermal1.510
15E1760tight thermal1.2710
16F1760tight thermal1.2510
21B14tight thermal1.810
22C14tight thermal2.5210
23D14tight thermal0.410
24E14tight thermal0.5810
25F14tight thermal1.3210
11A113loose thermal2.7310
12B113loose thermal2.6410
13C113loose thermal5.110
14D113loose thermal3.7210
15E113loose thermal2.1310
16F113loose thermal3.7910
LS refinement shellResolution: 2.5→2.565 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.318 166 -
Rwork0.282 3086 -
obs--76.55 %
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)
11.7107-0.5846-0.00062.59290.45532.1909-0.0252-0.0821-0.17180.20030.10330.03430.1013-0.0136-0.0781-0.28750.01470.0005-0.18140.0236-0.213122.081821.590310.7625
22.0661-0.4488-0.0823.81990.5621.9686-0.0641-0.26520.09140.37010.1459-0.0598-0.2080.0785-0.0818-0.10160.0663-0.0047-0.1639-0.0168-0.267918.187150.206124.7828
32.9285-0.31571.01942.10820.17783.8253-0.09860.08880.2056-0.0779-0.0995-0.0677-0.31470.01720.1981-0.26210.0106-0.0385-0.2152-0.0233-0.2065-3.5062-6.903223.8841
42.2114-0.02510.30282.52120.13954.3589-0.0856-0.43810.19530.4614-0.0012-0.0276-0.2078-0.10590.0868-0.02760.0904-0.0692-0.0415-0.1207-0.1826-0.1672-6.703655.6877
52.7820.6719-0.79324.7403-1.65423.2015-0.00040.40920.3182-0.64080.0230.14020.1309-0.2197-0.0226-0.00760.0250.00970.01940.0599-0.110338.450447.836956.5757
62.75571.0428-0.39375.5949-1.13163.3194-0.0054-0.0543-0.464-0.2539-0.2501-0.22080.5025-0.0350.25550.0178-0.03390.0941-0.0603-0.0212-0.092935.492621.378773.1324
Refinement TLS group
IDRefine-IDRefine TLS-IDAuth asym-IDLabel asym-IDAuth seq-IDLabel seq-ID
1X-RAY DIFFRACTION1AA1 - 25823 - 280
2X-RAY DIFFRACTION1AS801
3X-RAY DIFFRACTION2BB1 - 25823 - 280
4X-RAY DIFFRACTION2BT802
5X-RAY DIFFRACTION3CC1 - 25823 - 280
6X-RAY DIFFRACTION3CU803
7X-RAY DIFFRACTION4DD1 - 25823 - 280
8X-RAY DIFFRACTION4DV804
9X-RAY DIFFRACTION5EE1 - 25823 - 280
10X-RAY DIFFRACTION5EW805
11X-RAY DIFFRACTION6FF1 - 25823 - 280
12X-RAY DIFFRACTION6FX806

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