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- PDB-5x5a: Human thymidylate synthase bound with phosphate ion -

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Basic information

Entry
Database: PDB / ID: 5x5a
TitleHuman thymidylate synthase bound with phosphate ion
ComponentsThymidylate synthase
KeywordsTRANSFERASE / methyltransferase
Function / homology
Function and homology information


uracil metabolic process / response to organophosphorus / intestinal epithelial cell maturation / response to folic acid / Interconversion of nucleotide di- and triphosphates / thymidylate synthase / response to vitamin A / sequence-specific mRNA binding / cartilage development / tetrahydrofolate interconversion ...uracil metabolic process / response to organophosphorus / intestinal epithelial cell maturation / response to folic acid / Interconversion of nucleotide di- and triphosphates / thymidylate synthase / response to vitamin A / sequence-specific mRNA binding / cartilage development / tetrahydrofolate interconversion / folic acid binding / thymidylate synthase activity / dTMP biosynthetic process / dTTP biosynthetic process / DNA biosynthetic process / G1/S-Specific Transcription / developmental growth / response to glucocorticoid / mRNA regulatory element binding translation repressor activity / response to cytokine / response to progesterone / liver regeneration / response to toxic substance / circadian rhythm / response to ethanol / methylation / mitochondrial inner membrane / negative regulation of translation / mitochondrial matrix / response to xenobiotic stimulus / protein homodimerization activity / mitochondrion / nucleus / cytosol / cytoplasm
Similarity search - Function
Thymidylate Synthase; Chain A / Thymidylate synthase/dCMP hydroxymethylase domain / Thymidylate synthase, active site / Thymidylate synthase active site. / Thymidylate synthase / Thymidylate synthase/dCMP hydroxymethylase / Thymidylate synthase/dCMP hydroxymethylase domain / Thymidylate synthase/dCMP hydroxymethylase superfamily / Thymidylate synthase / 2-Layer Sandwich / Alpha Beta
Similarity search - Domain/homology
PHOSPHATE ION / Thymidylate synthase
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.39 Å
AuthorsChen, D. / Jansson, A. / Larsson, A. / Nordlund, P.
Funding support Singapore, 1items
OrganizationGrant numberCountry
Nanyang Technological UniversityM060080004.70301200 Singapore
CitationJournal: J. Biol. Chem. / Year: 2017
Title: Structural analyses of human thymidylate synthase reveal a site that may control conformational switching between active and inactive states
Authors: Chen, D. / Jansson, A. / Sim, D. / Larsson, A. / Nordlund, P.
History
DepositionFeb 15, 2017Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Jun 28, 2017Provider: repository / Type: Initial release
Revision 1.1Aug 30, 2017Group: Database references / Category: citation
Item: _citation.journal_abbrev / _citation.journal_volume ..._citation.journal_abbrev / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_PubMed
Revision 1.2Nov 22, 2023Group: Data collection / Database references / 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
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.beg_label_comp_id / _struct_ncs_dom_lim.beg_label_seq_id / _struct_ncs_dom_lim.end_auth_comp_id / _struct_ncs_dom_lim.end_label_asym_id / _struct_ncs_dom_lim.end_label_comp_id / _struct_ncs_dom_lim.end_label_seq_id

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Thymidylate synthase
B: Thymidylate synthase
C: Thymidylate synthase
D: Thymidylate synthase
E: Thymidylate synthase
F: Thymidylate synthase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)200,09512
Polymers199,5256
Non-polymers5706
Water4,197233
1
A: Thymidylate synthase
D: Thymidylate synthase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)66,6984
Polymers66,5082
Non-polymers1902
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area4830 Å2
ΔGint-36 kcal/mol
Surface area22310 Å2
MethodPISA
2
B: Thymidylate synthase
E: Thymidylate synthase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)66,6984
Polymers66,5082
Non-polymers1902
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area4510 Å2
ΔGint-28 kcal/mol
Surface area22630 Å2
MethodPISA
3
C: Thymidylate synthase
F: Thymidylate synthase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)66,6984
Polymers66,5082
Non-polymers1902
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area4740 Å2
ΔGint-40 kcal/mol
Surface area22230 Å2
MethodPISA
Unit cell
Length a, b, c (Å)109.533, 109.533, 317.467
Angle α, β, γ (deg.)90.000, 90.000, 90.000
Int Tables number96
Space group name H-MP43212
Noncrystallographic symmetry (NCS)NCS domain:
IDEns-IDDetails
11A
21B
12A
22C
13A
23D
14A
24E
15A
25F
16B
26C
17B
27D
18B
28E
19B
29F
110C
210D
111C
211E
112C
212F
113D
213E
114D
214F
115E
215F

NCS domain segments:

Component-ID: _ / Refine code: _

Dom-IDEns-IDBeg auth comp-IDBeg label comp-IDEnd auth comp-IDEnd label comp-IDAuth asym-IDLabel asym-IDAuth seq-IDLabel seq-ID
11PROPROALAALAAA26 - 3123 - 289
21PROPROALAALABB26 - 3123 - 289
12PROPROPROPROAA26 - 3053 - 282
22PROPROPROPROCC26 - 3053 - 282
13HISHISPROPROAA28 - 3055 - 282
23HISHISPROPRODD28 - 3055 - 282
14HISHISPROPROAA28 - 3055 - 282
24HISHISPROPROEE28 - 3055 - 282
15HISHISPROPROAA28 - 3055 - 282
25HISHISPROPROFF28 - 3055 - 282
16PROPROPROPROBB26 - 3053 - 282
26PROPROPROPROCC26 - 3053 - 282
17HISHISPROPROBB28 - 3055 - 282
27HISHISPROPRODD28 - 3055 - 282
18HISHISPROPROBB28 - 3055 - 282
28HISHISPROPROEE28 - 3055 - 282
19HISHISPROPROBB28 - 3055 - 282
29HISHISPROPROFF28 - 3055 - 282
110HISHISPROPROCC28 - 3055 - 282
210HISHISPROPRODD28 - 3055 - 282
111HISHISPROPROCC28 - 3055 - 282
211HISHISPROPROEE28 - 3055 - 282
112HISHISPROPROCC28 - 3055 - 282
212HISHISPROPROFF28 - 3055 - 282
113HISHISTHRTHRDD28 - 3065 - 283
213HISHISTHRTHREE28 - 3065 - 283
114HISHISTHRTHRDD28 - 3065 - 283
214HISHISTHRTHRFF28 - 3065 - 283
115HISHISTHRTHREE28 - 3065 - 283
215HISHISTHRTHRFF28 - 3065 - 283

NCS ensembles :
ID
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15

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Components

#1: Protein
Thymidylate synthase / TSase


Mass: 33254.125 Da / Num. of mol.: 6 / Fragment: UNP residues 26-313
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: TYMS, TS, OK/SW-cl.29 / Production host: Escherichia coli (E. coli) / References: UniProt: P04818, thymidylate synthase
#2: Chemical
ChemComp-PO4 / PHOSPHATE ION


Mass: 94.971 Da / Num. of mol.: 6 / Source method: obtained synthetically / Formula: PO4
#3: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 233 / 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: 2.41 Å3/Da / Density % sol: 48.95 %
Crystal growTemperature: 298 K / Method: vapor diffusion, hanging drop / Details: 100mM sodium calcodylate, pH 6.5, 25% PEG 4000

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: Australian Synchrotron / Beamline: MX1 / Wavelength: 0.7749 Å
DetectorType: ADSC QUANTUM 210r / Detector: CCD / Date: Oct 4, 2013
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.7749 Å / Relative weight: 1
ReflectionResolution: 2.4→30 Å / Num. obs: 66303 / % possible obs: 86.1 % / Redundancy: 10.1 % / Rmerge(I) obs: 0.105 / Rpim(I) all: 0.032 / Rrim(I) all: 0.11 / Χ2: 0.941 / Net I/σ(I): 6.9 / Num. measured all: 672785
Reflection shell

Diffraction-ID: 1

Resolution (Å)Redundancy (%)Rmerge(I) obsNum. unique allCC1/2Rpim(I) allRrim(I) allΧ2% possible all
2.4-2.4910.30.49861560.960.1490.5220.8581.6
2.49-2.5910.30.43361400.9670.1310.4540.85581
2.59-2.710.10.33961700.9810.1030.3560.87781.6
2.7-2.85100.26361660.9850.080.2760.90881.1
2.85-3.029.90.19761780.9920.060.2070.9581.2
3.02-3.269.70.13861940.9960.0430.1451.00681.2
3.26-3.589.50.163630.9980.0310.1051.09882.7
3.58-4.18.60.07570960.9980.0240.0791.09891.8
4.1-5.169.20.0677710.9990.020.0631.03799.4
5.16-3013.40.04980690.9990.0140.0510.8398.2

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Processing

Software
NameVersionClassification
REFMAC5.8.0155refinement
SCALEPACKdata scaling
PDB_EXTRACT3.22data extraction
HKL-2000data processing
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 1I00

1i00


Resolution: 2.39→20.348 Å / Cor.coef. Fo:Fc: 0.951 / Cor.coef. Fo:Fc free: 0.933 / SU B: 8.67 / SU ML: 0.197 / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R: 0.454 / ESU R Free: 0.304 / Stereochemistry target values: MAXIMUM LIKELIHOOD
Details: HYDROGENS HAVE BEEN USED IF PRESENT IN THE INPUT U VALUES : REFINED INDIVIDUALLY
RfactorNum. reflection% reflectionSelection details
Rfree0.2508 3226 4.9 %RANDOM
Rwork0.2166 ---
obs0.2183 62381 85.08 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
Displacement parametersBiso max: 111.31 Å2 / Biso mean: 36.823 Å2 / Biso min: 15.99 Å2
Baniso -1Baniso -2Baniso -3
1--0.31 Å20 Å20 Å2
2---0.31 Å20 Å2
3---0.61 Å2
Refinement stepCycle: final / Resolution: 2.39→20.348 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms13567 0 30 233 13830
Biso mean--44.64 31.9 -
Num. residues----1692
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0150.01913959
X-RAY DIFFRACTIONr_angle_refined_deg1.7571.96118903
X-RAY DIFFRACTIONr_dihedral_angle_1_deg6.3751688
X-RAY DIFFRACTIONr_dihedral_angle_2_deg35.73123.451678
X-RAY DIFFRACTIONr_dihedral_angle_3_deg16.007152362
X-RAY DIFFRACTIONr_dihedral_angle_4_deg21.20315106
X-RAY DIFFRACTIONr_chiral_restr0.1060.21994
X-RAY DIFFRACTIONr_gen_planes_refined0.0080.02110742
Refine LS restraints NCS

Refine-ID: X-RAY DIFFRACTION / Type: interatomic distance / Weight position: 0.05

Ens-IDDom-IDAuth asym-IDNumberRms dev position (Å)
11A188760.05
12B188760.05
21A185700.05
22C185700.05
31A182520.05
32D182520.05
41A182920.05
42E182920.05
51A182360.06
52F182360.06
61B185040.05
62C185040.05
71B183000.05
72D183000.05
81B182880.05
82E182880.05
91B181100.06
92F181100.06
101C182260.05
102D182260.05
111C181680.06
112E181680.06
121C182280.06
122F182280.06
131D184120.05
132E184120.05
141D182600.05
142F182600.05
151E182340.05
152F182340.05
LS refinement shellResolution: 2.394→2.456 Å / Rfactor Rfree error: 0 / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.342 204 -
Rwork0.263 3928 -
all-4132 -
obs--73.73 %

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