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- PDB-4a75: The Lin28b Cold shock domain in complex with hexathymidine. -

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Basic information

Entry
Database: PDB / ID: 4a75
TitleThe Lin28b Cold shock domain in complex with hexathymidine.
Components
  • 5'-D(*TP*TP*TP*TP*TP*TP)-3'
  • LIN28 COLD SHOCK DOMAIN
KeywordsCHAPERONE/DNA / CHAPERONE-DNA COMPLEX / CHAPERONE / DNA/RNA-BINDING PROTEIN
Function / homology
Function and homology information


pre-miRNA processing / mRNA binding / nucleolus / zinc ion binding / cytoplasm
Similarity search - Function
Cold-shock (CSD) domain profile. / Cold-shock protein, DNA-binding / 'Cold-shock' DNA-binding domain / Cold shock domain / Cold shock protein domain / Nucleic acid-binding proteins / zinc finger / Zinc knuckle / Zinc finger, CCHC-type superfamily / Zinc finger, CCHC-type ...Cold-shock (CSD) domain profile. / Cold-shock protein, DNA-binding / 'Cold-shock' DNA-binding domain / Cold shock domain / Cold shock protein domain / Nucleic acid-binding proteins / zinc finger / Zinc knuckle / Zinc finger, CCHC-type superfamily / Zinc finger, CCHC-type / Zinc finger CCHC-type profile. / OB fold (Dihydrolipoamide Acetyltransferase, E2P) / Nucleic acid-binding, OB-fold / Beta Barrel / Mainly Beta
Similarity search - Domain/homology
THIOCYANATE ION / DNA / Lin-28 homolog B
Similarity search - Component
Biological speciesXENOPUS TROPICALIS
synthetic construct (others)
MethodX-RAY DIFFRACTION / SYNCHROTRON / OTHER / Resolution: 1.75 Å
AuthorsMayr, F. / Schuetz, A. / Doege, N. / Heinemann, U.
CitationJournal: Nucleic Acids Res. / Year: 2012
Title: The Lin28 Cold-Shock Domain Remodels Pre-Let-7 Microrna.
Authors: Mayr, F. / Schutz, A. / Doge, N. / Heinemann, U.
History
DepositionNov 11, 2011Deposition site: PDBE / Processing site: PDBE
Revision 1.0Sep 5, 2012Provider: repository / Type: Initial release
Revision 1.1Apr 4, 2018Group: Data collection / Category: diffrn_source / Item: _diffrn_source.pdbx_synchrotron_beamline
Revision 1.2Oct 9, 2019Group: Data collection / Experimental preparation ...Data collection / Experimental preparation / Other / Source and taxonomy
Category: exptl_crystal_grow / pdbx_database_status ...exptl_crystal_grow / pdbx_database_status / pdbx_entity_src_syn / reflns / reflns_shell
Item: _pdbx_database_status.status_code_sf / _reflns.pdbx_Rmerge_I_obs ..._pdbx_database_status.status_code_sf / _reflns.pdbx_Rmerge_I_obs / _reflns.pdbx_Rrim_I_all / _reflns.pdbx_netI_over_sigmaI
Revision 1.3May 8, 2024Group: Data collection / Database references / Derived calculations
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Remark 700 SHEET DETERMINATION METHOD: DSSP THE SHEETS PRESENTED AS "AA" IN EACH CHAIN ON SHEET RECORDS BELOW ... SHEET DETERMINATION METHOD: DSSP THE SHEETS PRESENTED AS "AA" IN EACH CHAIN ON SHEET RECORDS BELOW IS ACTUALLY AN 5-STRANDED BARREL THIS IS REPRESENTED BY A 6-STRANDED SHEET IN WHICH THE FIRST AND LAST STRANDS ARE IDENTICAL. THE SHEETS PRESENTED AS "CA" IN EACH CHAIN ON SHEET RECORDS BELOW IS ACTUALLY AN 5-STRANDED BARREL THIS IS REPRESENTED BY A 6-STRANDED SHEET IN WHICH THE FIRST AND LAST STRANDS ARE IDENTICAL. THE SHEETS PRESENTED AS "EA" IN EACH CHAIN ON SHEET RECORDS BELOW IS ACTUALLY AN 5-STRANDED BARREL THIS IS REPRESENTED BY A 6-STRANDED SHEET IN WHICH THE FIRST AND LAST STRANDS ARE IDENTICAL. THE SHEETS PRESENTED AS "GA" IN EACH CHAIN ON SHEET RECORDS BELOW IS ACTUALLY AN 5-STRANDED BARREL THIS IS REPRESENTED BY A 6-STRANDED SHEET IN WHICH THE FIRST AND LAST STRANDS ARE IDENTICAL.

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: LIN28 COLD SHOCK DOMAIN
B: 5'-D(*TP*TP*TP*TP*TP*TP)-3'
C: LIN28 COLD SHOCK DOMAIN
D: 5'-D(*TP*TP*TP*TP*TP*TP)-3'
E: LIN28 COLD SHOCK DOMAIN
F: 5'-D(*TP*TP*TP*TP*TP*TP)-3'
G: LIN28 COLD SHOCK DOMAIN
H: 5'-D(*TP*TP*TP*TP*TP*TP)-3'
hetero molecules


Theoretical massNumber of molelcules
Total (without water)47,00610
Polymers46,8908
Non-polymers1162
Water9,116506
1
A: LIN28 COLD SHOCK DOMAIN
B: 5'-D(*TP*TP*TP*TP*TP*TP)-3'
hetero molecules


Theoretical massNumber of molelcules
Total (without water)11,7813
Polymers11,7222
Non-polymers581
Water543
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
2
C: LIN28 COLD SHOCK DOMAIN
D: 5'-D(*TP*TP*TP*TP*TP*TP)-3'


Theoretical massNumber of molelcules
Total (without water)11,7222
Polymers11,7222
Non-polymers00
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area1550 Å2
ΔGint-10.1 kcal/mol
Surface area5800 Å2
MethodPISA
3
E: LIN28 COLD SHOCK DOMAIN
F: 5'-D(*TP*TP*TP*TP*TP*TP)-3'
hetero molecules


Theoretical massNumber of molelcules
Total (without water)11,7813
Polymers11,7222
Non-polymers581
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area1250 Å2
ΔGint-11.3 kcal/mol
Surface area5880 Å2
MethodPISA
4
G: LIN28 COLD SHOCK DOMAIN
H: 5'-D(*TP*TP*TP*TP*TP*TP)-3'


Theoretical massNumber of molelcules
Total (without water)11,7222
Polymers11,7222
Non-polymers00
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area1740 Å2
ΔGint-12.3 kcal/mol
Surface area5740 Å2
MethodPISA
Unit cell
Length a, b, c (Å)51.799, 81.822, 99.819
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121

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Components

#1: Protein
LIN28 COLD SHOCK DOMAIN


Mass: 9942.231 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) XENOPUS (SILURANA) TROPICALIS (tropical clawed frog)
Production host: ESCHERICHIA COLI (E. coli) / References: UniProt: B4F6I0
#2: DNA chain
5'-D(*TP*TP*TP*TP*TP*TP)-3' / HEXATHYMIDINE


Mass: 1780.199 Da / Num. of mol.: 4 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others)
#3: Chemical ChemComp-SCN / THIOCYANATE ION


Mass: 58.082 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: CNS
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 506 / Source method: isolated from a natural source / Formula: H2O

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION

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Sample preparation

CrystalDensity Matthews: 2.26 Å3/Da / Density % sol: 45.47 % / Description: NONE
Crystal growTemperature: 277 K / Method: vapor diffusion
Details: 0.75 mM protein-DNA complex (in 20 mM Tris/HCl, pH 7.5, 100 mM KCl, 2 mM MgCl2 and 1 mM DTT) and 0.1 mM Bis-Tris, pH 5.5, 15% (w/v) PEG 3350 and 0.1  ...Details: 0.75 mM protein-DNA complex (in 20 mM Tris/HCl, pH 7.5, 100 mM KCl, 2 mM MgCl2 and 1 mM DTT) and 0.1 mM Bis-Tris, pH 5.5, 15% (w/v) PEG 3350 and 0.1 M sodium thiocyanate as reservoir buffer

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: BESSY / Beamline: BL14-1 / Type: BESSY / Wavelength: 0.98141
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.98141 Å / Relative weight: 1
ReflectionResolution: 1.75→32.91 Å / Num. obs: 39188 / % possible obs: 89.4 % / Observed criterion σ(I): 2 / Redundancy: 2.5 % / Rmerge(I) obs: 0.06 / Rrim(I) all: 0.078 / Net I/σ(I): 13.2
Reflection shellResolution: 1.75→1.85 Å / Mean I/σ(I) obs: 3.3 / Rrim(I) all: 0.39 / % possible all: 87.8

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Processing

SoftwareName: REFMAC / Version: 5.5.0109 / Classification: refinement
RefinementMethod to determine structure: OTHER
Starting model: NONE

Resolution: 1.75→32.91 Å / Cor.coef. Fo:Fc: 0.954 / Cor.coef. Fo:Fc free: 0.942 / SU B: 3.836 / SU ML: 0.064 / Cross valid method: THROUGHOUT / ESU R: 0.116 / ESU R Free: 0.107 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS.
RfactorNum. reflection% reflectionSelection details
Rfree0.19801 2110 5 %RANDOM
Rwork0.17105 ---
obs0.17239 40088 100 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.4 Å / Solvent model: BABINET MODEL WITH MASK
Displacement parametersBiso mean: 14.67 Å2
Baniso -1Baniso -2Baniso -3
1--0.28 Å20 Å20 Å2
2--0.67 Å20 Å2
3----0.4 Å2
Refinement stepCycle: LAST / Resolution: 1.75→32.91 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2734 400 6 506 3646
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0120.0223302
X-RAY DIFFRACTIONr_bond_other_d0.0010.022278
X-RAY DIFFRACTIONr_angle_refined_deg1.4762.1144515
X-RAY DIFFRACTIONr_angle_other_deg0.98335539
X-RAY DIFFRACTIONr_dihedral_angle_1_deg6.2925368
X-RAY DIFFRACTIONr_dihedral_angle_2_deg31.17223.125128
X-RAY DIFFRACTIONr_dihedral_angle_3_deg11.96315495
X-RAY DIFFRACTIONr_dihedral_angle_4_deg17.2951520
X-RAY DIFFRACTIONr_chiral_restr0.0880.2458
X-RAY DIFFRACTIONr_gen_planes_refined0.0080.0213435
X-RAY DIFFRACTIONr_gen_planes_other0.0020.02669
X-RAY DIFFRACTIONr_nbd_refined
X-RAY DIFFRACTIONr_nbd_other
X-RAY DIFFRACTIONr_nbtor_refined
X-RAY DIFFRACTIONr_nbtor_other
X-RAY DIFFRACTIONr_xyhbond_nbd_refined
X-RAY DIFFRACTIONr_xyhbond_nbd_other
X-RAY DIFFRACTIONr_metal_ion_refined
X-RAY DIFFRACTIONr_metal_ion_other
X-RAY DIFFRACTIONr_symmetry_vdw_refined
X-RAY DIFFRACTIONr_symmetry_vdw_other
X-RAY DIFFRACTIONr_symmetry_hbond_refined
X-RAY DIFFRACTIONr_symmetry_hbond_other
X-RAY DIFFRACTIONr_symmetry_metal_ion_refined
X-RAY DIFFRACTIONr_symmetry_metal_ion_other
X-RAY DIFFRACTIONr_mcbond_it1.73151773
X-RAY DIFFRACTIONr_mcbond_other0.4765740
X-RAY DIFFRACTIONr_mcangle_it2.7172842
X-RAY DIFFRACTIONr_mcangle_other
X-RAY DIFFRACTIONr_scbond_it3.5991529
X-RAY DIFFRACTIONr_scbond_other
X-RAY DIFFRACTIONr_scangle_it4.778111666
X-RAY DIFFRACTIONr_scangle_other
X-RAY DIFFRACTIONr_long_range_B_refined
X-RAY DIFFRACTIONr_long_range_B_other
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
LS refinement shellResolution: 1.748→1.793 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.251 145 -
Rwork0.222 2761 -
obs--100 %
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)
14.13930.5199-1.04697.19521.48394.11320.0412-0.4585-0.02410.438-0.028-0.39690.11010.2832-0.01320.1049-0.00220.01240.09240.00720.079116.7233-3.8768-0.2401
20.89870.79-1.7991.8451-0.57896.1538-0.0260.0704-0.0058-0.0229-0.0062-0.10260.02870.06720.03220.01460.0017-0.00580.0580.00380.06665.6102-8.94-19.7828
32.0727-0.2172-1.04491.1064-0.08492.14110.0129-0.1168-0.04380.1382-0.0020.0832-0.016-0.0324-0.01090.0474-0.0111-0.01670.0317-0.01050.05345.6526-8.4854-10.9256
49.63371.4031-4.67772.1968-0.2066.2417-0.02570.259-0.2099-0.12710.01460.04860.165-0.03140.01110.1053-0.0051-0.01820.0358-0.01230.07299.286-16.2911-21.3619
51.9057-0.8243-0.01923.84371.02081.24530.00580.03190.1184-0.0243-0.0082-0.0744-0.07160.01150.00230.0567-0.00340.00020.07840.00330.04510.8871-6.2152-9.745
62.30591.0957-1.1952.54090.38027.95290.11230.0811-0.1261-0.19840.030.12860.4072-0.047-0.14230.11230.0001-0.00740.0761-0.010.12179.9179-20.7951-16.2057
77.27586.28311.18917.25621.67483.07530.2324-0.31580.01470.3533-0.24730.29570.1531-0.28540.01490.10520.0387-0.00870.08690.01620.089928.5784-13.3005-4.4528
81.5666-0.45220.31961.1968-0.11812.78840.0253-0.0599-0.09190.022-0.0173-0.01570.12370.0631-0.00790.0611-0.0157-0.00160.0521-0.01710.09332.86-10.0333-9.7578
92.8751-0.14312.82893.7756-2.25198.0213-0.06970.11370.18150.01320.0370.0126-0.2428-0.01320.03270.06650.00280.01630.0309-0.02460.074530.9859-0.5925-11.0497
102.91430.0138-0.18853.98280.14632.7273-0.01890.1707-0.2344-0.1690.0247-0.12390.20510.1106-0.00570.0416-0.0007-0.01070.1070.01520.043327.1579-9.8148-8.7538
113.0292-3.0317-2.78343.35472.11744.35350.21880.09740.1954-0.2442-0.0718-0.1963-0.24130.0382-0.1470.0602-0.029-0.02720.0868-0.00590.089833.96836.96934.5287
121.9773-1.90472.51133.1444-6.225316.2738-0.0009-0.1755-0.19760.11660.03260.17640.0035-0.2577-0.03170.1099-0.0570.01380.1314-0.02090.095833.21967.11823.5151
132.26330.15070.92661.0763-0.12231.60260.02220.13990.0269-0.1767-0.00940.11710.0529-0.089-0.01270.06620.00750.01450.0459-0.01010.07230.92746.93066.9155
144.097-0.39550.66143.4129-0.67727.14230.0828-0.28010.43570.1212-0.0703-0.0009-0.26660.1916-0.01250.11070.00910.00220.0432-0.02060.085937.783515.701217.4714
151.9584-0.3811-0.76152.93041.14671.6924-0.0117-0.0346-0.1060.01550.0217-0.12450.09380.0505-0.01010.0509-0.0044-0.01710.08460.00410.045234.68185.11356.336
161.1474-0.08940.25722.5478-0.3392.08630.0241-0.08850.15240.076-0.020.1035-0.2045-0.1042-0.00410.0559-0.0066-0.00640.07870.0010.077437.615116.186210.102
172.7844-0.4882-0.51143.28130.86753.43590.08960.0171-0.0663-0.15390.00490.14720.0205-0.1233-0.09450.0645-0.05570.03040.0652-0.01540.09485.51959.81195.9178
181.59180.2325-0.4561.4446-0.73973.8883-0.01870.0445-0.0095-0.08170.01430.00090.0069-0.01220.00450.0270.0177-0.0060.0298-0.01870.06515.40847.35215.5844
195.5662-4.2983-0.03610.5084-0.20271.8708-0.0655-0.0867-0.07660.04060.04510.2624-0.0519-0.06070.02040.0608-0.02480.0140.08910.01040.01473.95638.15962.5463
201.83-0.2291-0.32483.9435-0.25381.1819-0.0135-0.14060.07670.28760.0319-0.1208-0.03490.0951-0.01840.05360.00330.00320.09740.01230.0421.64386.56375.4769
Refinement TLS group
IDRefine-IDRefine TLS-IDAuth asym-IDAuth seq-ID
1X-RAY DIFFRACTION1A25 - 31
2X-RAY DIFFRACTION2A32 - 45
3X-RAY DIFFRACTION3A46 - 73
4X-RAY DIFFRACTION4A74 - 85
5X-RAY DIFFRACTION5A86 - 103
6X-RAY DIFFRACTION6A104 - 113
7X-RAY DIFFRACTION7C28 - 38
8X-RAY DIFFRACTION8C39 - 74
9X-RAY DIFFRACTION9C75 - 87
10X-RAY DIFFRACTION10C88 - 113
11X-RAY DIFFRACTION11E27 - 39
12X-RAY DIFFRACTION12E40 - 44
13X-RAY DIFFRACTION13E45 - 72
14X-RAY DIFFRACTION14E73 - 82
15X-RAY DIFFRACTION15E83 - 98
16X-RAY DIFFRACTION16E99 - 113
17X-RAY DIFFRACTION17G27 - 43
18X-RAY DIFFRACTION18G44 - 81
19X-RAY DIFFRACTION19G82 - 92
20X-RAY DIFFRACTION20G93 - 113

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