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- PDB-1sel: CRYSTAL STRUCTURE OF SELENOSUBTILISIN AT 2.0-ANGSTROMS RESOLUTION -

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Basic information

Entry
Database: PDB / ID: 1sel
TitleCRYSTAL STRUCTURE OF SELENOSUBTILISIN AT 2.0-ANGSTROMS RESOLUTION
ComponentsSELENOSUBTILISIN
KeywordsHYDROLASE(SERINE PROTEASE)
Function / homology
Function and homology information


subtilisin / serine-type endopeptidase activity / proteolysis / extracellular region / metal ion binding
Similarity search - Function
Subtilisin Carlsberg-like catalytic domain / Peptidase S8/S53 domain / Peptidase S8 propeptide/proteinase inhibitor I9 / Peptidase inhibitor I9 / Peptidase S8 propeptide/proteinase inhibitor I9 superfamily / Peptidase S8, subtilisin, His-active site / Serine proteases, subtilase family, histidine active site. / Serine proteases, subtilase family, aspartic acid active site. / Peptidase S8, subtilisin, Asp-active site / Serine proteases, subtilase family, serine active site. ...Subtilisin Carlsberg-like catalytic domain / Peptidase S8/S53 domain / Peptidase S8 propeptide/proteinase inhibitor I9 / Peptidase inhibitor I9 / Peptidase S8 propeptide/proteinase inhibitor I9 superfamily / Peptidase S8, subtilisin, His-active site / Serine proteases, subtilase family, histidine active site. / 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 / Rossmann fold / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
Subtilisin Carlsberg
Similarity search - Component
Biological speciesBacillus subtilis (bacteria)
MethodX-RAY DIFFRACTION / Resolution: 2 Å
AuthorsSyed, R. / Hogle, J.M. / Hilvert, D.
CitationJournal: Biochemistry / Year: 1993
Title: Crystal structure of selenosubtilisin at 2.0-A resolution.
Authors: Syed, R. / Wu, Z.P. / Hogle, J.M. / Hilvert, D.
History
DepositionJan 17, 1993-
Revision 1.0Oct 31, 1993Provider: repository / Type: Initial release
Revision 1.1Mar 24, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Dec 25, 2013Group: Non-polymer description

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: SELENOSUBTILISIN
B: SELENOSUBTILISIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)54,9636
Polymers54,8022
Non-polymers1604
Water2,180121
1
A: SELENOSUBTILISIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)27,4813
Polymers27,4011
Non-polymers802
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
2
B: SELENOSUBTILISIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)27,4813
Polymers27,4011
Non-polymers802
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)75.800, 65.400, 53.300
Angle α, β, γ (deg.)90.00, 107.30, 90.00
Int Tables number4
Space group name H-MP1211
Atom site foot note1: CIS PROLINE - PRO A 168 / 2: RESIDUE 221 IN CHAIN A IS A SELENOCYSTEINE. / 3: CIS PROLINE - PRO B 168 / 4: RESIDUE 221 IN CHAIN B IS A SELENOCYSTEINE.

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Components

#1: Protein SELENOSUBTILISIN


Mass: 27401.158 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Bacillus subtilis (bacteria) / References: UniProt: P00780
#2: Chemical
ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: Ca
#3: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 121 / 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: 2.3 Å3/Da / Density % sol: 46.54 %
Crystal grow
*PLUS
Temperature: 22.5 ℃ / pH: 8 / Method: vapor diffusion, sitting drop
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-ID
115 mg/mlprotein1drop
216-20 %PEG80001drop
30.2 Mimidazolemalate1reservoir

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Data collection

Reflection
*PLUS
Highest resolution: 2 Å / Lowest resolution: 40 Å
Reflection shell
*PLUS
Highest resolution: 2 Å / Lowest resolution: 2.13 Å / Num. possible: 2636 / Num. unique obs: 5618 / Rmerge(I) obs: 0.243

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Processing

Software
NameClassification
X-PLORmodel building
X-PLORrefinement
X-PLORphasing
RefinementResolution: 2→8 Å / Rfactor Rwork: 0.173 / Rfactor obs: 0.173
Refinement stepCycle: LAST / Resolution: 2→8 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3844 0 4 121 3969
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_bond_d0.015
X-RAY DIFFRACTIONx_bond_d_na
X-RAY DIFFRACTIONx_bond_d_prot
X-RAY DIFFRACTIONx_angle_d
X-RAY DIFFRACTIONx_angle_d_na
X-RAY DIFFRACTIONx_angle_d_prot
X-RAY DIFFRACTIONx_angle_deg2.8
X-RAY DIFFRACTIONx_angle_deg_na
X-RAY DIFFRACTIONx_angle_deg_prot
X-RAY DIFFRACTIONx_dihedral_angle_d
X-RAY DIFFRACTIONx_dihedral_angle_d_na
X-RAY DIFFRACTIONx_dihedral_angle_d_prot
X-RAY DIFFRACTIONx_improper_angle_d
X-RAY DIFFRACTIONx_improper_angle_d_na
X-RAY DIFFRACTIONx_improper_angle_d_prot
X-RAY DIFFRACTIONx_mcbond_it
X-RAY DIFFRACTIONx_mcangle_it
X-RAY DIFFRACTIONx_scbond_it
X-RAY DIFFRACTIONx_scangle_it
Software
*PLUS
Name: X-PLOR / Classification: refinement
Refinement
*PLUS
Highest resolution: 2 Å / Lowest resolution: 8 Å / Num. reflection obs: 22155 / σ(I): 2 / Rfactor obs: 0.173
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_angle_d2.8
X-RAY DIFFRACTIONx_dihedral_angle_d25.1
X-RAY DIFFRACTIONx_improper_angle_d1.4

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