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- PDB-7cuj: Crystal structure of fission yeast Ccq1 and Tpz1 -

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Basic information

Entry
Database: PDB / ID: 7cuj
TitleCrystal structure of fission yeast Ccq1 and Tpz1
Components
  • Coiled-coil quantitatively-enriched protein 1
  • Protection of telomeres protein tpz1
KeywordsDNA BINDING PROTEIN / telomere
Function / homology
Function and homology information


telomere-telomerase complex assembly / telomere cap complex / chromosome, telomeric repeat region / meiotic chromosome segregation / meiotic telomere clustering / chromosome, subtelomeric region / mitotic telomere maintenance via semi-conservative replication / shelterin complex / telomere capping / protein localization to chromosome, telomeric region ...telomere-telomerase complex assembly / telomere cap complex / chromosome, telomeric repeat region / meiotic chromosome segregation / meiotic telomere clustering / chromosome, subtelomeric region / mitotic telomere maintenance via semi-conservative replication / shelterin complex / telomere capping / protein localization to chromosome, telomeric region / telomeric DNA binding / negative regulation of telomere maintenance via telomerase / telomere maintenance via telomerase / telomere maintenance / molecular adaptor activity / nucleoplasm / nucleus
Similarity search - Function
Adrenocortical dysplasia protein
Similarity search - Domain/homology
Protection of telomeres protein tpz1 / Coiled-coil quantitatively-enriched protein 1
Similarity search - Component
Biological speciesSchizosaccharomyces pombe (fission yeast)
MethodX-RAY DIFFRACTION / SYNCHROTRON / SAD / Resolution: 2.4 Å
AuthorsSun, H. / Wu, Z. / Wu, J. / Lei, M.
CitationJournal: Plos Genet. / Year: 2022
Title: Structural insights into Pot1-ssDNA, Pot1-Tpz1 and Tpz1-Ccq1 Interactions within fission yeast shelterin complex.
Authors: Sun, H. / Wu, Z. / Zhou, Y. / Lu, Y. / Lu, H. / Chen, H. / Shi, S. / Zeng, Z. / Wu, J. / Lei, M.
History
DepositionAug 23, 2020Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Aug 25, 2021Provider: repository / Type: Initial release
Revision 1.1Sep 7, 2022Group: Database references / Category: citation / citation_author
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year
Revision 1.2May 29, 2024Group: Data collection / Category: chem_comp_atom / chem_comp_bond

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Coiled-coil quantitatively-enriched protein 1
C: Protection of telomeres protein tpz1
B: Coiled-coil quantitatively-enriched protein 1
D: Protection of telomeres protein tpz1


Theoretical massNumber of molelcules
Total (without water)81,6724
Polymers81,6724
Non-polymers00
Water1,44180
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area7490 Å2
ΔGint-44 kcal/mol
Surface area27570 Å2
MethodPISA
Unit cell
Length a, b, c (Å)58.300, 71.752, 95.180
Angle α, β, γ (deg.)90.000, 103.890, 90.000
Int Tables number4
Space group name H-MP1211

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Components

#1: Protein Coiled-coil quantitatively-enriched protein 1 / Structural maintenance of chromosomes protein ccq1 / SMC protein ccq1


Mass: 35256.641 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Schizosaccharomyces pombe (strain 972 / ATCC 24843) (yeast)
Strain: 972 / ATCC 24843 / Gene: ccq1, SPCC188.07 / Plasmid: pET28a / Production host: Escherichia coli BL21(DE3) (bacteria) / References: UniProt: Q10432
#2: Protein/peptide Protection of telomeres protein tpz1 / Meiotically up-regulated gene 169 protein


Mass: 5579.404 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Schizosaccharomyces pombe (strain 972 / ATCC 24843) (yeast)
Strain: 972 / ATCC 24843 / Gene: tpz1, mug169, SPAC6F6.16c, SPAC6F6.18c / Plasmid: pGEX6P1 / Production host: Escherichia coli BL21(DE3) (bacteria) / References: UniProt: O14246
#3: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 80 / 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: 2.37 Å3/Da / Density % sol: 48.02 % / Mosaicity: 0.41 °
Crystal growTemperature: 277 K / Method: evaporation / pH: 7.8
Details: 15% PEG4000, 200mM potassium chloride, 50mM magnesium chloride and 50mM Tris-HCl

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Data collection

Diffraction
IDMean temperature (K)Crystal-IDSerial crystal experiment
11001N
21001N
Diffraction source
SourceSiteBeamlineIDWavelength (Å)
SYNCHROTRONSSRF BL18U110.97853
SYNCHROTRONSSRF BL19U120.97853
Detector
TypeIDDetectorDate
DECTRIS PILATUS3 6M1PIXELMay 15, 2015
DECTRIS PILATUS 6M2PIXELMay 15, 2015
Radiation
IDProtocolMonochromatic (M) / Laue (L)Scattering typeWavelength-ID
1SINGLE WAVELENGTHMx-ray1
2SINGLE WAVELENGTHMx-ray2
Radiation wavelength
IDWavelength (Å)Relative weight
10.978531
21
ReflectionResolution: 2.4→50 Å / Num. obs: 29579 / % possible obs: 98.9 % / Redundancy: 4.4 % / Rmerge(I) obs: 0.058 / Rpim(I) all: 0.03 / Rrim(I) all: 0.066 / Χ2: 0.913 / Net I/σ(I): 8.1 / Num. measured all: 131622
Reflection shell

Diffraction-ID: 1

Resolution (Å)Redundancy (%)Rmerge(I) obsNum. unique obsCC1/2Rpim(I) allRrim(I) allΧ2% possible all
2.4-2.4940.59327460.860.3180.6760.94692
2.49-2.594.30.49228860.9240.2550.5570.89998.2
2.59-2.74.60.36829730.9650.1850.4130.95599.7
2.7-2.854.60.2629500.9760.1320.2930.95499.7
2.85-3.024.60.16629610.9890.0840.1870.976100
3.02-3.264.30.10930160.9920.0570.1230.998100
3.26-3.584.60.07229810.9950.0360.0811.022100
3.58-4.14.70.0529830.9970.0250.0560.964100
4.1-5.174.30.03930060.9970.020.0440.8299.9
5.17-504.50.03230770.9980.0160.0360.60499.8

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Processing

Software
NameVersionClassification
SCALEPACKdata scaling
REFMAC5.8.0258refinement
PDB_EXTRACT3.25data extraction
Cootmodel building
PHENIXphasing
HKL-3000data reduction
RefinementMethod to determine structure: SAD / Resolution: 2.4→38.87 Å / Cor.coef. Fo:Fc: 0.938 / Cor.coef. Fo:Fc free: 0.892 / SU B: 19.516 / SU ML: 0.202 / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R Free: 0.297 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: U VALUES : WITH TLS ADDED
RfactorNum. reflection% reflectionSelection details
Rfree0.2551 1240 4.9 %RANDOM
Rwork0.1967 ---
obs0.1995 23849 83.55 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
Displacement parametersBiso max: 158.5 Å2 / Biso mean: 54.986 Å2 / Biso min: 12.22 Å2
Baniso -1Baniso -2Baniso -3
1-0.27 Å2-0 Å21.85 Å2
2---0.4 Å20 Å2
3----0.7 Å2
Refinement stepCycle: final / Resolution: 2.4→38.87 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms4726 0 0 80 4806
Biso mean---40.22 -
Num. residues----588
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0020.0124839
X-RAY DIFFRACTIONr_angle_refined_deg0.8311.6216545
X-RAY DIFFRACTIONr_dihedral_angle_1_deg5.9465578
X-RAY DIFFRACTIONr_dihedral_angle_2_deg35.22922.802232
X-RAY DIFFRACTIONr_dihedral_angle_3_deg15.50815850
X-RAY DIFFRACTIONr_dihedral_angle_4_deg13.5591520
X-RAY DIFFRACTIONr_chiral_restr0.0730.2643
X-RAY DIFFRACTIONr_gen_planes_refined0.0030.023595
X-RAY DIFFRACTIONr_rigid_bond_restr0.55434839
LS refinement shellResolution: 2.4→2.462 Å / Rfactor Rfree error: 0 / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.266 56 -
Rwork0.199 958 -
all-1014 -
obs--46.01 %
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)
13.5026-0.76943.112.3094-1.05853.28840.01060.16480.1079-0.4479-0.04250.420.12270.01690.03190.1001-0.0091-0.09820.08240.01140.1097-25.800542.30992.8889
27.9572-2.11560.17521.0884-0.16022.27990.26990.1381-0.37310.0546-0.00550.27370.3371-0.4218-0.26440.1005-0.0556-0.020.08460.04210.1621-18.909428.911822.4882
32.9737-1.30292.7272.7208-1.03473.6521-0.03840.11760.18960.6463-0.0688-0.4583-0.01980.15590.10720.1882-0.0083-0.11550.00730.00810.089414.817729.69643.213
41.5366-0.86032.47533.0601-3.76289.3832-0.3474-0.21330.48440.57650.13590.1436-0.6119-0.19780.21150.16510.0626-0.06540.0429-0.0740.2303-4.536643.787132.6234
Refinement TLS group
IDRefine-IDRefine TLS-IDAuth asym-IDAuth seq-ID
1X-RAY DIFFRACTION1A132 - 439
2X-RAY DIFFRACTION2C429 - 466
3X-RAY DIFFRACTION3B132 - 439
4X-RAY DIFFRACTION4D427 - 462

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