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- PDB-3nkf: Crystal structure of human ligand-free mature caspase-6 with inte... -

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Basic information

Entry
Database: PDB / ID: 3nkf
TitleCrystal structure of human ligand-free mature caspase-6 with intersubunit linker attached
ComponentsCaspase-6
KeywordsHYDROLASE / Caspase / protease / apoptosis / zymogen
Function / homology
Function and homology information


caspase-6 / Breakdown of the nuclear lamina / regulation of programmed cell death / positive regulation of necroptotic process / cellular response to staurosporine / cysteine-type endopeptidase activity involved in execution phase of apoptosis / cysteine-type endopeptidase activity involved in apoptotic process / hepatocyte apoptotic process / TP53 Regulates Transcription of Caspase Activators and Caspases / Apoptotic cleavage of cellular proteins ...caspase-6 / Breakdown of the nuclear lamina / regulation of programmed cell death / positive regulation of necroptotic process / cellular response to staurosporine / cysteine-type endopeptidase activity involved in execution phase of apoptosis / cysteine-type endopeptidase activity involved in apoptotic process / hepatocyte apoptotic process / TP53 Regulates Transcription of Caspase Activators and Caspases / Apoptotic cleavage of cellular proteins / pyroptotic inflammatory response / protein autoprocessing / intrinsic apoptotic signaling pathway by p53 class mediator / Caspase-mediated cleavage of cytoskeletal proteins / cysteine-type peptidase activity / epithelial cell differentiation / activation of innate immune response / positive regulation of neuron apoptotic process / positive regulation of apoptotic process / cysteine-type endopeptidase activity / apoptotic process / proteolysis / nucleoplasm / identical protein binding / nucleus / cytoplasm / cytosol
Similarity search - Function
Rossmann fold - #1460 / Peptidase family C14A, His active site / Caspase family histidine active site. / Peptidase C14, caspase non-catalytic subunit p10 / Peptidase family C14A, cysteine active site / Caspase family cysteine active site. / Caspase family p10 domain profile. / Peptidase C14A, caspase catalytic domain / Caspase, interleukin-1 beta converting enzyme (ICE) homologues / Peptidase C14, p20 domain ...Rossmann fold - #1460 / Peptidase family C14A, His active site / Caspase family histidine active site. / Peptidase C14, caspase non-catalytic subunit p10 / Peptidase family C14A, cysteine active site / Caspase family cysteine active site. / Caspase family p10 domain profile. / Peptidase C14A, caspase catalytic domain / Caspase, interleukin-1 beta converting enzyme (ICE) homologues / Peptidase C14, p20 domain / Caspase family p20 domain profile. / : / Caspase domain / Caspase-like domain superfamily / Rossmann fold / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.9 Å
AuthorsVaidya, S. / Hardy, J.A.
CitationJournal: J.Mol.Biol. / Year: 2011
Title: Substrate-Induced Conformational Changes Occur in All Cleaved Forms of Caspase-6.
Authors: Vaidya, S. / Velazquez-Delgado, E.M. / Abbruzzese, G. / Hardy, J.A.
History
DepositionJun 18, 2010Deposition site: RCSB / Processing site: RCSB
Revision 1.0Dec 8, 2010Provider: repository / Type: Initial release
Revision 1.1Jul 13, 2011Group: Version format compliance
Revision 1.2Feb 21, 2024Group: Data collection / Database references
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / struct_ref_seq_dif
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_ref_seq_dif.details

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Caspase-6
B: Caspase-6
C: Caspase-6
D: Caspase-6


Theoretical massNumber of molelcules
Total (without water)127,7744
Polymers127,7744
Non-polymers00
Water48627
1


  • Idetical with deposited unit
  • defined by software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area6930 Å2
ΔGint-51 kcal/mol
Surface area35890 Å2
MethodPISA
2
A: Caspase-6
B: Caspase-6


Theoretical massNumber of molelcules
Total (without water)63,8872
Polymers63,8872
Non-polymers00
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area2390 Å2
ΔGint-19 kcal/mol
Surface area18830 Å2
MethodPISA
3
C: Caspase-6
D: Caspase-6


Theoretical massNumber of molelcules
Total (without water)63,8872
Polymers63,8872
Non-polymers00
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area2720 Å2
ΔGint-19 kcal/mol
Surface area18880 Å2
MethodPISA
Unit cell
Length a, b, c (Å)63.290, 90.814, 85.912
Angle α, β, γ (deg.)90.00, 91.04, 90.00
Int Tables number4
Space group name H-MP1211
Noncrystallographic symmetry (NCS)NCS domain:
IDEns-IDDetails
11A
21B
31C
41D

NCS domain segments:
Dom-IDComponent-IDEns-IDRefine codeAuth asym-IDAuth seq-ID
1116A32 - 136
2116B32 - 136
3116C32 - 136
4116D32 - 136
1216A138 - 163
2216B138 - 163
3216C138 - 163
4216D138 - 163
1316A202 - 217
2316B202 - 217
3316C202 - 217
4316D202 - 217
1416A225 - 246
2416B225 - 246
3416C225 - 246
4416D225 - 246
1516A248 - 259
2516B248 - 259
3516C248 - 259
4516D248 - 259
1616A273 - 291
2616B273 - 291
3616C273 - 291
4616D273 - 291

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Components

#1: Protein
Caspase-6 / CASP-6 / Apoptotic protease Mch-2 / Caspase-6 subunit p18 / Caspase-6 subunit p11


Mass: 31943.559 Da / Num. of mol.: 4 / Mutation: Prodomain deleted D179A / Source method: obtained synthetically / Details: E.coli optimized synthetic gene / References: UniProt: P55212, caspase-6
#2: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 27 / 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: 1.93 Å3/Da / Density % sol: 36.33 %
Crystal growTemperature: 298 K / Method: vapor diffusion, hanging drop / pH: 4.6
Details: 0.1 M CH3COONa.3H2O pH 4.6, 2M NaCl, 3% EtOH, VAPOR DIFFUSION, HANGING DROP, temperature 298K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: NSLS / Beamline: X6A / Wavelength: 0.98 Å
DetectorType: ADSC QUANTUM 270 / Detector: CCD / Date: Apr 10, 2010
RadiationMonochromator: Si(111) channel cut monochromator / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.98 Å / Relative weight: 1
ReflectionResolution: 2.9→40 Å / Num. all: 21645 / Num. obs: 20897 / % possible obs: 96.5 % / Observed criterion σ(F): 2 / Observed criterion σ(I): 3
Reflection shellResolution: 2.9→2.96 Å / % possible all: 99.6

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Processing

Software
NameVersionClassification
HKL-2000data collection
PHASESphasing
REFMAC5.5.0109refinement
HKL-2000data reduction
SCALEPACKdata scaling
RefinementMethod to determine structure: MOLECULAR REPLACEMENT / Resolution: 2.9→29.5 Å / Cor.coef. Fo:Fc: 0.933 / Cor.coef. Fo:Fc free: 0.897 / SU B: 42.273 / SU ML: 0.367 / Cross valid method: THROUGHOUT / ESU R Free: 0.46 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.2702 1293 6 %RANDOM
Rwork0.21584 ---
obs0.21913 20346 99.72 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.4 Å / Solvent model: MASK
Displacement parametersBiso mean: 83.636 Å2
Baniso -1Baniso -2Baniso -3
1-2.83 Å20 Å20.51 Å2
2--0.11 Å20 Å2
3----2.93 Å2
Refinement stepCycle: LAST / Resolution: 2.9→29.5 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms6665 0 0 27 6692
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0110.0226825
X-RAY DIFFRACTIONr_bond_other_d
X-RAY DIFFRACTIONr_angle_refined_deg1.2331.9429209
X-RAY DIFFRACTIONr_angle_other_deg
X-RAY DIFFRACTIONr_dihedral_angle_1_deg5.7685861
X-RAY DIFFRACTIONr_dihedral_angle_2_deg29.48623.196291
X-RAY DIFFRACTIONr_dihedral_angle_3_deg19.784151098
X-RAY DIFFRACTIONr_dihedral_angle_4_deg19.781535
X-RAY DIFFRACTIONr_chiral_restr0.0910.21024
X-RAY DIFFRACTIONr_gen_planes_refined0.0050.0215133
X-RAY DIFFRACTIONr_gen_planes_other
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_it13.3251.54325
X-RAY DIFFRACTIONr_mcbond_other
X-RAY DIFFRACTIONr_mcangle_it17.47626845
X-RAY DIFFRACTIONr_scbond_it16.75532500
X-RAY DIFFRACTIONr_scangle_it23.394.52364
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
Refine LS restraints NCS

Ens-ID: 1 / Number: 1400 / Refine-ID: X-RAY DIFFRACTION

Dom-IDAuth asym-IDTypeRms dev position (Å)Weight position
1Aloose positional0.125
2Bloose positional0.155
3Cloose positional0.15
4Dloose positional0.135
1Aloose thermal8.4210
2Bloose thermal10.5710
3Cloose thermal9.6210
4Dloose thermal8.7510
LS refinement shellResolution: 2.9→2.975 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.398 102 -
Rwork0.32 1485 -
obs--99.94 %
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)
10.1243-0.0304-0.07020.0611-0.04781.14140.03270.09170.00670.08490.03520.0125-0.2276-0.1339-0.06790.293-0.00550.03580.1645-0.01160.07481.284658.509947.1132
21.2645-0.60244.33481.8437-2.367614.9199-0.1173-0.14270.03060.0914-0.1771-0.5038-0.7192-0.43650.29430.25650.1205-0.0080.25260.00930.22012.142670.623735.5585
30.59910.57870.67390.68540.46841.61410.08510.06750.01650.1322-0.02590.0672-0.0888-0.0148-0.05920.2623-0.02610.02740.1648-0.00760.11068.889958.669440.0807
40.7404-0.45640.93910.547-0.10612.0468-0.03380.1235-0.06950.1480.04160.0392-0.05770.2004-0.00780.272-0.03950.03140.2032-0.07790.031412.879151.097243.5482
52.25064.121.51738.77691.21613.00120.30840.0915-0.25530.01740.42240.05540.5327-0.1079-0.73090.3158-0.1345-0.04460.1972-0.07720.35490.49340.583538.8119
60.21040.08180.39840.07170.10241.1104-0.06230.0078-0.05860.00350.066-0.0136-0.0795-0.081-0.00370.2571-0.02390.02520.17-0.01550.08824.949346.640352.946
70.1774-0.009-0.3030.0529-0.19011.654-0.0922-0.0552-0.08680.070.01250.00060.11270.16480.07960.3006-0.0229-0.00420.17030.03560.095922.425930.542549.4334
812.50765.31321.670210.95079.476837.5568-0.19720.1413-0.0464-0.34070.1558-0.5351-0.56570.27810.04140.1606-0.08070.0520.39260.11290.090843.193639.142831.9959
90.529-0.2072-0.08580.26280.52631.35450.0375-0.109-0.1474-0.0330.1502-0.0232-0.0850.2379-0.18770.22030.00320.00230.22470.06060.109134.573429.866144.4358
100.41610.0305-0.5870.14320.00040.8569-0.0161-0.0303-0.06940.0536-0.0578-0.02070.03090.07480.0740.2526-0.02170.00740.17980.01340.124422.140532.969740.473
110.4765-0.26610.0380.93730.33130.1624-0.0253-0.13010.0599-0.08990.0808-0.1135-0.03780.0237-0.05550.2495-0.02640.01790.26030.00840.078330.121244.922852.2266
121.8297-0.1418-0.98980.04120.07690.5387-0.06-0.16090.06190.04240.04290.03930.03320.10490.01710.2912-0.0484-0.01330.17450.02910.091722.529243.559252.0297
130.21630.2327-0.02280.5001-0.11510.192-0.0630.0593-0.07020.05780.0406-0.1701-0.04960.09010.02240.12270.01970.02730.1598-0.00030.183231.896735.925986.0098
142.50934.3518-1.427217.6918-3.77520.9795-0.4720.363-0.22750.93590.169-0.69460.0848-0.12910.30310.5222-0.1736-0.00170.17260.01110.327541.75941.836295.5718
150.0741-0.056-0.08320.07710.03750.1147-0.05440.01650.0140.04950.0118-0.08850.0431-0.04110.04260.1566-0.0023-0.01480.16820.00020.208529.824744.568791.9352
165.9907-3.6447-0.86612.53260.11540.6660.0158-0.23740.65810.13840.2553-0.2872-0.1994-0.1175-0.27110.19140.01250.04740.2115-0.00570.212520.025641.010895.9799
170.4338-0.26080.01120.1701-0.01110.0344-0.0053-0.0005-0.032-0.01010.03170.05290.01880.0579-0.02640.15030.00760.00880.1812-0.00790.178418.783634.368682.8678
180.27170.1831-0.0610.2197-0.23690.4948-0.01390.0165-0.0430.0174-0.00960.0084-0.00090.05750.02350.1247-0.01630.00370.19960.00120.16720.362841.265379.11
190.1747-0.0104-0.00780.6488-0.03230.1807-0.0250.11180.04760.04880.03430.1664-0.0167-0.0746-0.00920.09860.021-0.02530.1506-0.00620.1973-3.430855.564585.7194
202.65810.41040.02530.07150.00450.0004-0.26320.08110.0386-0.01780.14660.01830.0002-0.00040.11660.29760.01160.01080.2420.03240.2597-13.962849.216395.5603
210.0815-0.0257-0.17920.09950.18150.59770.00290.0153-0.01660.0626-0.05280.06270.0029-0.08670.04990.15390.01430.00820.1688-0.01250.2225-1.678948.452393.8673
220.07010.0609-0.06790.4171-0.17370.1036-0.05470.0075-0.04590.12630.04450.0508-0.0115-0.00450.01020.15140.0006-0.00960.1912-0.00780.20894.838545.937188.8567
230.16420.0482-0.00960.0327-0.07290.62860.02970.08880.0743-0.00650.0136-0.004-0.0160.0079-0.04330.15630.00690.00530.17450.01320.1779.655659.919780.9314
240.32070.310.06130.41910.2830.4848-0.02240.0206-0.0244-0.0039-0.0177-0.0089-0.066-0.00570.04010.1641-0.0195-0.01310.187-0.00940.14699.57751.464381.0521
Refinement TLS group
IDRefine-IDRefine TLS-IDAuth asym-IDAuth seq-ID
1X-RAY DIFFRACTION1A31 - 91
2X-RAY DIFFRACTION2A92 - 102
3X-RAY DIFFRACTION3A103 - 200
4X-RAY DIFFRACTION4A201 - 213
5X-RAY DIFFRACTION5A214 - 221
6X-RAY DIFFRACTION6A222 - 292
7X-RAY DIFFRACTION7B32 - 55
8X-RAY DIFFRACTION8B56 - 61
9X-RAY DIFFRACTION9B62 - 101
10X-RAY DIFFRACTION10B102 - 215
11X-RAY DIFFRACTION11B216 - 258
12X-RAY DIFFRACTION12B259 - 290
13X-RAY DIFFRACTION13C32 - 92
14X-RAY DIFFRACTION14C93 - 103
15X-RAY DIFFRACTION15C104 - 160
16X-RAY DIFFRACTION16C161 - 201
17X-RAY DIFFRACTION17C202 - 259
18X-RAY DIFFRACTION18C260 - 294
19X-RAY DIFFRACTION19D31 - 92
20X-RAY DIFFRACTION20D93 - 103
21X-RAY DIFFRACTION21D104 - 148
22X-RAY DIFFRACTION22D149 - 215
23X-RAY DIFFRACTION23D216 - 259
24X-RAY DIFFRACTION24D267 - 291

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