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- PDB-3vhq: Crystal structure of the Ca6 site mutant of Pro-SA-subtilisin -

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Basic information

Entry
Database: PDB / ID: 3vhq
TitleCrystal structure of the Ca6 site mutant of Pro-SA-subtilisin
ComponentsTk-subtilisin
KeywordsHYDROLASE / proteolysis
Function / homology
Function and homology information


Hydrolases; Acting on peptide bonds (peptidases); Serine endopeptidases / serine-type endopeptidase activity / proteolysis / extracellular region / identical protein binding
Similarity search - Function
Peptidase S8 propeptide/proteinase inhibitor I9 / Subtilisin Carlsberg-like catalytic domain / Peptidase S8/S53 domain / Peptidase S8 propeptide/proteinase inhibitor I9 superfamily / Serine proteases, subtilase family, aspartic acid active site. / Peptidase S8, subtilisin, Asp-active site / Serine proteases, subtilase family, serine active site. / Peptidase S8, subtilisin, Ser-active site / Serine proteases, subtilase domain profile. / Peptidase S8, subtilisin-related ...Peptidase S8 propeptide/proteinase inhibitor I9 / Subtilisin Carlsberg-like catalytic domain / Peptidase S8/S53 domain / Peptidase S8 propeptide/proteinase inhibitor I9 superfamily / Serine proteases, subtilase family, aspartic acid active site. / Peptidase S8, subtilisin, Asp-active site / Serine proteases, subtilase family, serine active site. / Peptidase S8, subtilisin, Ser-active site / Serine proteases, subtilase domain profile. / Peptidase S8, subtilisin-related / Peptidase S8/S53 domain superfamily / Subtilase family / Peptidase S8/S53 domain / Alpha-Beta Plaits / Rossmann fold / 2-Layer Sandwich / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
Biological speciesThermococcus kodakarensis (archaea)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.15 Å
AuthorsUehara, R. / Takeuchi, Y. / Tanaka, S. / Matsumura, H. / Koga, Y. / Takano, K. / Kanaya, S.
CitationJournal: Biochemistry / Year: 2012
Title: Requirement of Ca(2+) Ions for the Hyperthermostability of Tk-Subtilisin from Thermococcus kodakarensis
Authors: Uehara, R. / Takeuchi, Y. / Tanaka, S.I. / Takano, K. / Koga, Y. / Kanaya, S.
History
DepositionSep 1, 2011Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Jul 11, 2012Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Tk-subtilisin
hetero molecules


Theoretical massNumber of molelcules
Total (without water)41,5496
Polymers41,3481
Non-polymers2005
Water4,738263
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
Unit cell
Length a, b, c (Å)73.434, 92.780, 124.279
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number23
Space group name H-MI222
Components on special symmetry positions
IDModelComponents
11A-608-

HOH

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Components

#1: Protein Tk-subtilisin


Mass: 41348.312 Da / Num. of mol.: 1 / Mutation: S324A, D372A
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Thermococcus kodakarensis (archaea) / Strain: KOD1 / Gene: TK1675 / Production host: Escherichia coli (E. coli) / Strain (production host): bl21(de3) / References: UniProt: P58502, subtilisin
#2: Chemical
ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 5 / Source method: obtained synthetically / Formula: Ca
#3: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 263 / 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: 2.56 Å3/Da / Density % sol: 51.95 %
Crystal growTemperature: 277 K / Method: vapor diffusion, sitting drop / pH: 7
Details: 4.0M sodium formate, pH 7.0, VAPOR DIFFUSION, SITTING DROP, temperature 277K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: SPring-8 / Beamline: BL38B1 / Wavelength: 1 Å
DetectorType: RIGAKU JUPITER 210 / Detector: CCD / Date: May 29, 2008
RadiationMonochromator: Mirrors / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1 Å / Relative weight: 1
ReflectionResolution: 2.09→50 Å / Num. obs: 24074 / % possible obs: 95.6 % / Observed criterion σ(F): 5 / Observed criterion σ(I): 5
Reflection shellResolution: 2.09→2.16 Å / % possible all: 78.1

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Processing

Software
NameVersionClassification
BL38BSSdata collection
MOLREPphasing
REFMAC5.5.0110refinement
HKL-2000data reduction
HKL-2000data scaling
RefinementMethod to determine structure: MOLECULAR REPLACEMENT / Resolution: 2.15→36.08 Å / Cor.coef. Fo:Fc: 0.963 / Cor.coef. Fo:Fc free: 0.925 / SU B: 5.17 / SU ML: 0.134 / Cross valid method: THROUGHOUT / ESU R Free: 0.202 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.24081 1163 5.1 %RANDOM
Rwork0.17142 ---
obs0.17476 21552 96.83 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.4 Å / Solvent model: MASK
Displacement parametersBiso mean: 36.618 Å2
Baniso -1Baniso -2Baniso -3
1-0 Å20 Å20 Å2
2--0 Å20 Å2
3---0 Å2
Refinement stepCycle: LAST / Resolution: 2.15→36.08 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2830 0 5 263 3098
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0230.0222889
X-RAY DIFFRACTIONr_bond_other_d
X-RAY DIFFRACTIONr_angle_refined_deg1.9731.9553950
X-RAY DIFFRACTIONr_angle_other_deg
X-RAY DIFFRACTIONr_dihedral_angle_1_deg6.85382
X-RAY DIFFRACTIONr_dihedral_angle_2_deg39.22625.357112
X-RAY DIFFRACTIONr_dihedral_angle_3_deg18.39815427
X-RAY DIFFRACTIONr_dihedral_angle_4_deg17.494159
X-RAY DIFFRACTIONr_chiral_restr0.1550.2461
X-RAY DIFFRACTIONr_gen_planes_refined0.010.0212194
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_it1.0971.51904
X-RAY DIFFRACTIONr_mcbond_other
X-RAY DIFFRACTIONr_mcangle_it1.95123063
X-RAY DIFFRACTIONr_scbond_it3.1653985
X-RAY DIFFRACTIONr_scangle_it4.9124.5887
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
LS refinement shellResolution: 2.15→2.206 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.345 74 -
Rwork0.225 1306 -
obs--81.85 %

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