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- PDB-1xqv: Crystal structure of inactive F1-mutant G37A -

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Basic information

Entry
Database: PDB / ID: 1xqv
TitleCrystal structure of inactive F1-mutant G37A
ComponentsProline iminopeptidase
KeywordsHYDROLASE / ALPHA-BETA HYDROLASE / CAGED ACTIVE SITE / SUBSTRATE BINDING / OXYANION POCKET
Function / homology
Function and homology information


prolyl aminopeptidase / aminopeptidase activity / proteolysis / membrane
Similarity search - Function
Proline-specific peptidase / Peptidase S33 / Serine aminopeptidase, S33 / : / alpha/beta hydrolase fold / Alpha/beta hydrolase fold-1 / Alpha/Beta hydrolase fold, catalytic domain / Alpha/Beta hydrolase fold / Rossmann fold / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
Proline iminopeptidase
Similarity search - Component
Biological speciesThermoplasma acidophilum (acidophilic)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 2.3 Å
AuthorsGoettig, P. / Brandstetter, H. / Groll, M. / Goehring, W. / Konarev, P.V. / Svergun, D.I. / Huber, R. / Kim, J.-S.
CitationJournal: J.Biol.Chem. / Year: 2005
Title: X-ray snapshots of peptide processing in mutants of tricorn-interacting factor F1 from Thermoplasma acidophilum
Authors: Goettig, P. / Brandstetter, H. / Groll, M. / Goehring, W. / Konarev, P.V. / Svergun, D.I. / Huber, R. / Kim, J.-S.
History
DepositionOct 13, 2004Deposition site: RCSB / Processing site: PDBJ
Revision 1.0Jul 12, 2005Provider: repository / Type: Initial release
Revision 1.1Apr 30, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Nov 10, 2021Group: Database references / Category: database_2 / struct_ref_seq_dif
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_ref_seq_dif.details
Revision 1.4Oct 25, 2023Group: Data collection / Refinement description
Category: chem_comp_atom / chem_comp_bond / pdbx_initial_refinement_model
Revision 1.5Oct 30, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Proline iminopeptidase


Theoretical massNumber of molelcules
Total (without water)33,5441
Polymers33,5441
Non-polymers00
Water1,67593
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)55.280, 57.730, 82.700
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 Proline iminopeptidase / PIP / Prolyl aminopeptidase / PAP / Tricorn protease interacting factor F1


Mass: 33544.117 Da / Num. of mol.: 1 / Mutation: G37A
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Thermoplasma acidophilum (acidophilic) / Gene: TA0830 / Plasmid: PRSET6C / Production host: Escherichia coli (E. coli) / Strain (production host): Bl21(DE3)RIL / References: UniProt: P96084, prolyl aminopeptidase
#2: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 93 / Source method: isolated from a natural source / Formula: H2O
Has protein modificationY

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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: 1.95 Å3/Da / Density % sol: 36.29 %
Crystal growTemperature: 293 K / Method: vapor diffusion, hanging drop / pH: 6
Details: PEG 6000, Bis-Tris, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 293.0K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU RU300 / Wavelength: 1.5418 Å
DetectorType: MARRESEARCH / Detector: IMAGE PLATE / Date: Feb 11, 2003 / Details: mirrors
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 2→21.4 Å / Num. all: 16781 / Num. obs: 16574 / % possible obs: 98.8 % / Observed criterion σ(F): 1 / Observed criterion σ(I): 1 / Biso Wilson estimate: 21.7 Å2 / Net I/σ(I): 10.2
Reflection shellResolution: 2→2.11 Å / % possible all: 68.4

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Processing

Software
NameVersionClassification
CNS1.1refinement
MOSFLMdata reduction
CCP4(TRUNCATE)data scaling
CNSphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 1MTZ

1mtz


Resolution: 2.3→19.96 Å / Rfactor Rfree error: 0.012 / Data cutoff high absF: 1466121.45 / Data cutoff low absF: 0 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.286 564 4.8 %RANDOM
Rwork0.242 ---
all0.254 12407 --
obs0.242 11843 96.8 %-
Solvent computationSolvent model: FLAT MODEL / Bsol: 45.3575 Å2 / ksol: 0.386715 e/Å3
Displacement parametersBiso mean: 19.6 Å2
Baniso -1Baniso -2Baniso -3
1--3.5 Å20 Å20 Å2
2--2.25 Å20 Å2
3---1.25 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.42 Å0.31 Å
Luzzati d res low-5 Å
Luzzati sigma a0.32 Å0.19 Å
Refinement stepCycle: LAST / Resolution: 2.3→19.96 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2329 0 0 93 2422
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_bond_d0.008
X-RAY DIFFRACTIONc_angle_deg1
X-RAY DIFFRACTIONc_dihedral_angle_d23.2
X-RAY DIFFRACTIONc_improper_angle_d0.67
LS refinement shellResolution: 2.3→2.44 Å / Rfactor Rfree error: 0.037 / Total num. of bins used: 6
RfactorNum. reflection% reflection
Rfree0.339 84 4.3 %
Rwork0.275 1868 -
obs--98.9 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1PROTEIN_REP.PARAMPROTEIN.TOP
X-RAY DIFFRACTION2WATER_REP.PARAMWATER.TOP

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