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- PDB-4c8y: Cas6 (TTHA0078) substrate mimic complex -

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Basic information

Entry
Database: PDB / ID: 4c8y
TitleCas6 (TTHA0078) substrate mimic complex
Components
  • CAS6A
  • R1 REPEAT RNA SUBSTRATE MIMIC
KeywordsRNA BINDING PROTEIN/RNA / RNA BINDING PROTEIN-RNA COMPLEX / CRISPR CAS PROTEIN RNA / PROCESSING RIBONUCLEASE
Function / homology
Function and homology information


defense response to virus / endonuclease activity
Similarity search - Function
CRISPR-associated protein Cas6, C-terminal / CRISPR-associated endoribonuclease Cas6 / Alpha-Beta Plaits - #1890 / CRISPR-associated protein Cas6, N-terminal domain superfamily / Alpha-Beta Plaits - #1900 / CRISPR-associated protein, Cas6 / Alpha-Beta Plaits / 2-Layer Sandwich / Alpha Beta
Similarity search - Domain/homology
RNA / RNA (> 10) / CRISPR-associated protein Cas6 C-terminal domain-containing protein
Similarity search - Component
Biological speciesTHERMUS THERMOPHILUS (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.8 Å
AuthorsJinek, M. / Niewoehner, O. / Doudna, J.A.
CitationJournal: Nucleic Acids Res. / Year: 2014
Title: Evolution of Crispr RNA Recognition and Processing by Cas6 Endonucleases.
Authors: Niewoehner, O. / Jinek, M. / Doudna, J.A.
History
DepositionOct 2, 2013Deposition site: PDBE / Processing site: PDBE
Revision 1.0Nov 6, 2013Provider: repository / Type: Initial release
Revision 1.1Nov 20, 2013Group: Atomic model
Revision 1.2Feb 12, 2014Group: Database references
Revision 1.3May 1, 2024Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Other / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_database_status / pdbx_initial_refinement_model / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_database_status.status_code_sf / _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: CAS6A
B: CAS6A
C: R1 REPEAT RNA SUBSTRATE MIMIC
hetero molecules


Theoretical massNumber of molelcules
Total (without water)58,5135
Polymers58,3213
Non-polymers1922
Water6,846380
1


  • Idetical with deposited unit
  • defined by software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area5060 Å2
ΔGint-46.1 kcal/mol
Surface area20820 Å2
MethodPISA
Unit cell
Length a, b, c (Å)43.070, 83.300, 73.440
Angle α, β, γ (deg.)90.00, 101.41, 90.00
Int Tables number4
Space group name H-MP1211

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Components

#1: Protein CAS6A


Mass: 26580.473 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) THERMUS THERMOPHILUS (bacteria) / Strain: HB8 / Plasmid: PEC-K-MBP / Production host: ESCHERICHIA COLI (E. coli) / Strain (production host): BL21(DE3) / Variant (production host): ROSETTA 2 / References: UniProt: Q5SM65
#2: RNA chain R1 REPEAT RNA SUBSTRATE MIMIC


Mass: 5160.160 Da / Num. of mol.: 1 / Fragment: REPEAT STEM-LOOP / Source method: obtained synthetically / Details: R1 REPEAT RNA SUBSTRATE MIMIC
#3: Chemical ChemComp-SO4 / SULFATE ION


Mass: 96.063 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: SO4
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 380 / Source method: isolated from a natural source / Formula: H2O
Sequence detailsN-TERMINAL GSSLD TAG DERIVED FROM EXPRESSION PLASMID

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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: 2.2 Å3/Da / Density % sol: 44 % / Description: NONE
Crystal growpH: 6.5
Details: 0.1 M BIS-TRIS PROPANE (PH 6.5), 18% (W/V) PEG 335, 0.3M SODIUM SULFATE

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: ALS / Beamline: 8.2.1 / Wavelength: 0.999951
DetectorType: ADSC CCD / Detector: CCD / Date: Dec 20, 2011
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.999951 Å / Relative weight: 1
ReflectionResolution: 1.8→72 Å / Num. obs: 46544 / % possible obs: 98.8 % / Observed criterion σ(I): 1.9 / Redundancy: 3.7 % / Rmerge(I) obs: 0.06 / Net I/σ(I): 15.5
Reflection shellResolution: 1.8→1.9 Å / Redundancy: 3.6 % / Rmerge(I) obs: 0.7 / Mean I/σ(I) obs: 1.9 / % possible all: 97.8

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Processing

Software
NameVersionClassification
PHENIX(PHENIX.REFINE: 1.8.2_1309)refinement
XDSdata reduction
XSCALEdata scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: TTCAS6B STRUCTURE

Resolution: 1.8→71.988 Å / SU ML: 0.22 / σ(F): 1.99 / Phase error: 22.05 / Stereochemistry target values: ML
RfactorNum. reflection% reflection
Rfree0.2157 2347 5 %
Rwork0.1908 --
obs0.192 46544 98.79 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL
Refinement stepCycle: LAST / Resolution: 1.8→71.988 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3655 279 10 380 4324
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.0064069
X-RAY DIFFRACTIONf_angle_d1.1145584
X-RAY DIFFRACTIONf_dihedral_angle_d13.5471543
X-RAY DIFFRACTIONf_chiral_restr0.055609
X-RAY DIFFRACTIONf_plane_restr0.005683
LS refinement shell
Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkRefine-ID% reflection obs (%)
1.8-1.83680.2921230.31912479X-RAY DIFFRACTION95
1.8368-1.87670.29261520.27522617X-RAY DIFFRACTION100
1.8767-1.92040.27381550.25652567X-RAY DIFFRACTION100
1.9204-1.96840.26921460.24312606X-RAY DIFFRACTION100
1.9684-2.02160.23411300.22132610X-RAY DIFFRACTION100
2.0216-2.08110.23961420.22382617X-RAY DIFFRACTION100
2.0811-2.14830.23841500.20462626X-RAY DIFFRACTION99
2.1483-2.22510.26351430.20362603X-RAY DIFFRACTION99
2.2251-2.31420.2221130.20052608X-RAY DIFFRACTION99
2.3142-2.41950.20241260.192614X-RAY DIFFRACTION99
2.4195-2.54710.22221480.18342587X-RAY DIFFRACTION99
2.5471-2.70660.211550.18542592X-RAY DIFFRACTION99
2.7066-2.91560.20971470.18952560X-RAY DIFFRACTION98
2.9156-3.2090.21071250.18282594X-RAY DIFFRACTION98
3.209-3.67340.19541220.17332632X-RAY DIFFRACTION98
3.6734-4.6280.16671290.15512619X-RAY DIFFRACTION98
4.628-72.04540.21561410.17962666X-RAY DIFFRACTION99
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)
10.06890.06420.03770.1654-0.02610.1734-0.04070.13620.2784-0.29940.07740.1589-0.2412-0.089-0.00270.3022-0.00590.03240.1533-0.01030.20077.781732.1212-0.6922
20.0248-0.01910.02110.0362-0.00560.0212-0.00940.03810.3855-0.1013-0.00590.301-0.0483-0.12230.00060.2328-0.0476-0.0270.2773-0.00060.3966-2.741831.15513.1696
30.1171-0.0273-0.14150.24580.19180.3035-0.021-0.0113-0.0179-0.302-0.0148-0.1053-0.3233-0.1898-0.00370.2942-0.03740.02290.23380.02110.15267.262929.8025-5.0683
40.9521-0.13320.410.2278-0.02480.19370.06830.3752-0.0658-0.23480.0814-0.0318-0.30210.27070.1130.3139-0.05320.08050.280.02270.162714.411627.6099-5.5595
50.474-0.0059-0.21070.00790.0050.0913-0.01120.23120.0230.00780.0363-0.11660.2787-0.2255-0.07570.5211-0.1506-0.10470.2576-0.03820.16214.46137.63064.5312
60.9081-0.0182-0.22690.27950.13420.14590.0783-0.1750.1684-0.06910.08690.07170.2714-0.19460.06490.23420.0015-0.03230.1873-0.01160.14868.432523.98619.8446
70.0426-0.1057-0.00750.25130.02710.00410.06160.08640.08190.0770.06930.11620.1236-0.2450.05330.2325-0.1476-0.01750.36780.05630.2004-0.558817.680514.8418
80.0324-0.06-0.02350.13740.0360.0267-0.0263-0.1838-0.12450.2872-0.0810.07370.1871-0.1-0.19870.5676-0.51350.03330.6670.42530.075-3.50028.780518.1446
90.3993-0.0660.04420.25140.00270.03780.0885-0.14960.22550.1179-0.1277-0.04260.1062-0.05630.00180.24720.002-0.01810.1764-0.01080.171114.076626.338820.4103
100.94470.278-0.26990.21780.05330.25680.15430.0420.00650.1352-0.0109-0.04330.4588-0.05150.25810.3647-0.0594-0.06270.1839-0.00410.08111.398712.421219.9924
110.6006-0.3702-0.24770.56610.0490.22210.143-0.045-0.0548-0.032-0.0014-0.09890.3756-0.3190.31620.3247-0.0672-0.05320.20760.00990.1456.667116.304210.2999
120.13960.0471-0.02110.3257-0.00480.16260.1689-0.0106-0.2455-0.05990.0133-0.0999-0.1178-0.04540.09610.1065-0.02210.01040.18620.01770.194533.116417.390448.0287
130.5783-0.18960.11840.29370.12950.16660.1934-0.075-0.32860.0114-0.08320.03850.03660.00290.1870.1361-0.0374-0.00950.16790.0420.210928.312812.250848.2541
140.40070.38520.1050.40070.14470.27020.055-0.16810.05230.1761-0.0222-0.2059-0.05950.00430.00210.1725-0.0299-0.00760.19130.02640.164130.156120.994551.8523
150.0983-0.0136-0.01680.0166-0.01410.0726-0.04710.1348-0.04310.00840.00710.0867-0.0458-0.0341-0.00010.1543-0.0101-0.00330.161-0.00770.192615.338617.414233.6864
160.0504-0.1394-0.00750.47260.03360.07560.0942-0.2522-0.053-0.1135-0.05590.2352-0.0182-0.06590.00030.1134-0.0260.00970.16720.00640.160410.380820.94443.4753
170.25870.0150.00741.105-0.15340.02920.0566-0.05820.1735-0.0294-0.05840.69260.11730.0741-0.07530.13470.00750.06520.20380.04310.35413.513227.471943.5297
180.1264-0.1281-0.05910.37670.02570.08750.12280.33-0.1968-0.124-0.1624-0.0191-0.00360.0336-0.00720.20160.0095-0.03360.1524-0.02070.193820.293316.391428.8728
190.13220.0973-0.01140.0748-0.02090.0514-0.01640.1702-0.0652-0.22030.04990.2101-0.13280.01920.00210.15780.0258-0.00760.18290.00710.171913.423429.076932.6307
200.02540.0332-0.01190.0951-0.08060.0570.1516-0.1135-0.0271-0.0495-0.03720.0383-0.03290.00160.01110.1291-0.0130.01720.1430.00460.161517.650924.864742.9671
210.053-0.05830.02330.0701-0.04370.0865-0.1289-0.0761-0.26-0.0183-0.23230.19370.103-0.0957-0.02930.5118-0.1217-0.16580.79790.27051.6027-5.508838.618220.8989
220.0195-0.0392-0.01420.18250.08720.0390.1012-0.1610.1937-0.1227-0.03130.0434-0.12890.020.06110.38530.07510.03080.71590.26071.2785-3.511731.973414.4852
Refinement TLS group
IDRefine-IDRefine TLS-IDSelection details
1X-RAY DIFFRACTION1CHAIN A AND (RESID 1 THROUGH 29 )
2X-RAY DIFFRACTION2CHAIN A AND (RESID 30 THROUGH 49 )
3X-RAY DIFFRACTION3CHAIN A AND (RESID 50 THROUGH 85 )
4X-RAY DIFFRACTION4CHAIN A AND (RESID 86 THROUGH 101 )
5X-RAY DIFFRACTION5CHAIN A AND (RESID 102 THROUGH 116 )
6X-RAY DIFFRACTION6CHAIN A AND (RESID 117 THROUGH 139 )
7X-RAY DIFFRACTION7CHAIN A AND (RESID 140 THROUGH 154 )
8X-RAY DIFFRACTION8CHAIN A AND (RESID 155 THROUGH 170 )
9X-RAY DIFFRACTION9CHAIN A AND (RESID 171 THROUGH 189 )
10X-RAY DIFFRACTION10CHAIN A AND (RESID 190 THROUGH 204 )
11X-RAY DIFFRACTION11CHAIN A AND (RESID 205 THROUGH 238 )
12X-RAY DIFFRACTION12CHAIN B AND (RESID 0 THROUGH 17 )
13X-RAY DIFFRACTION13CHAIN B AND (RESID 18 THROUGH 63 )
14X-RAY DIFFRACTION14CHAIN B AND (RESID 64 THROUGH 116 )
15X-RAY DIFFRACTION15CHAIN B AND (RESID 117 THROUGH 139 )
16X-RAY DIFFRACTION16CHAIN B AND (RESID 140 THROUGH 154 )
17X-RAY DIFFRACTION17CHAIN B AND (RESID 155 THROUGH 171 )
18X-RAY DIFFRACTION18CHAIN B AND (RESID 172 THROUGH 189 )
19X-RAY DIFFRACTION19CHAIN B AND (RESID 190 THROUGH 204 )
20X-RAY DIFFRACTION20CHAIN B AND (RESID 205 THROUGH 237 )
21X-RAY DIFFRACTION21CHAIN C AND (RESID 15 THROUGH 20 )
22X-RAY DIFFRACTION22CHAIN C AND (RESID 21 THROUGH 30 )

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