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- PDB-2vei: Structure-based enzyme engineering efforts with an inactive monom... -

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Basic information

Entry
Database: PDB / ID: 2vei
TitleStructure-based enzyme engineering efforts with an inactive monomeric TIM variant: the importance of a single point mutation for generating an active site with suitable binding properties
ComponentsGLYCOSOMAL TRIOSEPHOSPHATE ISOMERASE
KeywordsISOMERASE / TRIOSEPHOSPHATE ISOMERASE / TIM BARREL / GLYCOLYSIS / ENGINEERING / PENTOSE SHUNT / BINDING POCKET / GLUCONEOGENESIS / LIPID SYNTHESIS / SUBSTRATE SPECIFICITY / FATTY ACID BIOSYNTHESIS / TIM / ENZYME / MONOMERIC / GLYCOSOME
Function / homology
Function and homology information


glycosome / triose-phosphate isomerase / triose-phosphate isomerase activity / glyceraldehyde-3-phosphate biosynthetic process / glycerol catabolic process / gluconeogenesis / glycolytic process / cytosol / cytoplasm
Similarity search - Function
Triosephosphate isomerase, bacterial/eukaryotic / Triosephosphate isomerase, active site / Triosephosphate isomerase active site. / Triosephosphate isomerase / Triosephosphate isomerase superfamily / Triosephosphate isomerase / Triosephosphate isomerase (TIM) family profile. / Aldolase class I / Aldolase-type TIM barrel / TIM Barrel ...Triosephosphate isomerase, bacterial/eukaryotic / Triosephosphate isomerase, active site / Triosephosphate isomerase active site. / Triosephosphate isomerase / Triosephosphate isomerase superfamily / Triosephosphate isomerase / Triosephosphate isomerase (TIM) family profile. / Aldolase class I / Aldolase-type TIM barrel / TIM Barrel / Alpha-Beta Barrel / Alpha Beta
Similarity search - Domain/homology
Triosephosphate isomerase, glycosomal
Similarity search - Component
Biological speciesTRYPANOSOMA BRUCEI BRUCEI (eukaryote)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 1.89 Å
AuthorsAlahuhta, M. / Salin, M. / Casteleijn, M.G. / Kemmer, C. / El-Sayed, I. / Augustyns, K. / Neubauer, P. / Wierenga, R.K.
CitationJournal: Protein Eng.Des.Sel. / Year: 2008
Title: Structure-Based Protein Engineering Efforts with a Monomeric Tim Variant: The Importance of a Single Point Mutation for Generating an Active Site with Suitable Binding Properties.
Authors: Alahuhta, M. / Salin, M. / Casteleijn, M.G. / Kemmer, C. / El-Sayed, I. / Augustyns, K. / Neubauer, P. / Wierenga, R.K.
History
DepositionOct 24, 2007Deposition site: PDBE / Processing site: PDBE
Revision 1.0Feb 19, 2008Provider: repository / Type: Initial release
Revision 1.1May 8, 2011Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Jun 28, 2017Group: Data collection / Category: diffrn_source / Item: _diffrn_source.type
Revision 1.4Dec 13, 2023Group: Data collection / Database references ...Data collection / Database references / Other / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_database_status / pdbx_initial_refinement_model
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_database_status.status_code_sf
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 9-STRANDED BARREL THIS IS REPRESENTED BY A 10-STRANDED SHEET IN WHICH THE FIRST AND LAST STRANDS ARE IDENTICAL. THE SHEETS PRESENTED AS "BA" IN EACH CHAIN ON SHEET RECORDS BELOW IS ACTUALLY AN 9-STRANDED BARREL THIS IS REPRESENTED BY A 10-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 8-STRANDED BARREL THIS IS REPRESENTED BY A 9-STRANDED SHEET IN WHICH THE FIRST AND LAST STRANDS ARE IDENTICAL.

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: GLYCOSOMAL TRIOSEPHOSPHATE ISOMERASE
B: GLYCOSOMAL TRIOSEPHOSPHATE ISOMERASE
C: GLYCOSOMAL TRIOSEPHOSPHATE ISOMERASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)78,59919
Polymers77,0623
Non-polymers1,53716
Water13,980776
1


  • Idetical with deposited unit
  • defined by software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area5780 Å2
ΔGint-38.4 kcal/mol
Surface area35060 Å2
MethodPQS
Unit cell
Length a, b, c (Å)91.240, 52.590, 92.380
Angle α, β, γ (deg.)90.00, 119.04, 90.00
Int Tables number4
Space group name H-MP1211

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Components

#1: Protein GLYCOSOMAL TRIOSEPHOSPHATE ISOMERASE / TRIOSEPHOSPHATE ISOMERASE / TIM / TRIOSE-PHOSPHATE ISOMERASE


Mass: 25687.342 Da / Num. of mol.: 3 / Fragment: RESIDUES 2-13,15-72,80-234,238-250
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) TRYPANOSOMA BRUCEI BRUCEI (eukaryote) / Plasmid: PET3A / Production host: ESCHERICHIA COLI (E. coli) / Strain (production host): BL21 / References: UniProt: P04789, triose-phosphate isomerase
#2: Chemical
ChemComp-SO4 / SULFATE ION


Mass: 96.063 Da / Num. of mol.: 16 / Source method: obtained synthetically / Formula: SO4
#3: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 776 / Source method: isolated from a natural source / Formula: H2O
Sequence detailsRESIDUES 14, 72-78, 235-237(THREE RESIDUES DELETED IN LOOP8) IN CHAINS A, B AND C HAVE BEEN REMOVED ...RESIDUES 14, 72-78, 235-237(THREE RESIDUES DELETED IN LOOP8) IN CHAINS A, B AND C HAVE BEEN REMOVED RESULTING IN A DELETION MUTATION OF UNP P04789

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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: 2.58 Å3/Da / Density % sol: 52.42 % / Description: NONE
Crystal growpH: 8.5 / Details: 0.1 M TRIS/HCL PH 8.5, 1.9 M MGSO4

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: ROTATING ANODE / Type: ENRAF-NONIUS FR591 / Wavelength: 1.5418
DetectorType: MARRESEARCH / Detector: CCD / Date: May 13, 2001 / Details: PROPHYSICS XRM-216
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 1.89→25 Å / Num. obs: 61427 / % possible obs: 99.3 % / Observed criterion σ(I): 3 / Redundancy: 3.8 % / Rmerge(I) obs: 0.06 / Net I/σ(I): 18.4
Reflection shellResolution: 1.89→1.95 Å / Redundancy: 3.7 % / Rmerge(I) obs: 0.15 / Mean I/σ(I) obs: 7.32 / % possible all: 99.7

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Processing

Software
NameVersionClassification
REFMAC5.3.0028refinement
XDSdata reduction
XDSdata scaling
MOLREPphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 1DKW

1dkw


Resolution: 1.89→18.85 Å / Cor.coef. Fo:Fc: 0.945 / Cor.coef. Fo:Fc free: 0.903 / SU B: 2.796 / SU ML: 0.085 / Cross valid method: THROUGHOUT / ESU R: 0.14 / ESU R Free: 0.136 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS.
RfactorNum. reflection% reflectionSelection details
Rfree0.215 3072 5 %RANDOM
Rwork0.166 ---
obs0.168 58355 100 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.4 Å / Solvent model: MASK
Displacement parametersBiso mean: 12.99 Å2
Baniso -1Baniso -2Baniso -3
1--0.22 Å20 Å20.1 Å2
2--0.35 Å20 Å2
3----0.03 Å2
Refinement stepCycle: LAST / Resolution: 1.89→18.85 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms5433 0 80 776 6289
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0120.0225670
X-RAY DIFFRACTIONr_bond_other_d
X-RAY DIFFRACTIONr_angle_refined_deg
X-RAY DIFFRACTIONr_angle_other_deg
X-RAY DIFFRACTIONr_dihedral_angle_1_deg5.855727
X-RAY DIFFRACTIONr_dihedral_angle_2_deg34.63224.558226
X-RAY DIFFRACTIONr_dihedral_angle_3_deg13.49315940
X-RAY DIFFRACTIONr_dihedral_angle_4_deg16.4731527
X-RAY DIFFRACTIONr_chiral_restr0.0930.2880
X-RAY DIFFRACTIONr_gen_planes_refined0.0050.024196
X-RAY DIFFRACTIONr_gen_planes_other
X-RAY DIFFRACTIONr_nbd_refined0.2050.22889
X-RAY DIFFRACTIONr_nbd_other
X-RAY DIFFRACTIONr_nbtor_refined0.3030.23922
X-RAY DIFFRACTIONr_nbtor_other
X-RAY DIFFRACTIONr_xyhbond_nbd_refined0.1430.2690
X-RAY DIFFRACTIONr_xyhbond_nbd_other
X-RAY DIFFRACTIONr_metal_ion_refined
X-RAY DIFFRACTIONr_metal_ion_other
X-RAY DIFFRACTIONr_symmetry_vdw_refined0.1860.266
X-RAY DIFFRACTIONr_symmetry_vdw_other
X-RAY DIFFRACTIONr_symmetry_hbond_refined0.2840.238
X-RAY DIFFRACTIONr_symmetry_hbond_other
X-RAY DIFFRACTIONr_symmetry_metal_ion_refined
X-RAY DIFFRACTIONr_symmetry_metal_ion_other
X-RAY DIFFRACTIONr_mcbond_it0.731.53683
X-RAY DIFFRACTIONr_mcbond_other
X-RAY DIFFRACTIONr_mcangle_it1.20325766
X-RAY DIFFRACTIONr_mcangle_other
X-RAY DIFFRACTIONr_scbond_it2.02932281
X-RAY DIFFRACTIONr_scbond_other
X-RAY DIFFRACTIONr_scangle_it3.1684.51957
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: 1.89→1.94 Å / Total num. of bins used: 20 /
RfactorNum. reflection
Rfree0.246 225
Rwork0.174 4266

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