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- PDB-3jva: Crystal structure of Dipeptide Epimerase from Enterococcus faecal... -

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Basic information

Entry
Database: PDB / ID: 3jva
TitleCrystal structure of Dipeptide Epimerase from Enterococcus faecalis V583
ComponentsDipeptide Epimerase
KeywordsISOMERASE / Dipeptide Epimerase / Enolase superfamily
Function / homology
Function and homology information


racemase and epimerase activity, acting on amino acids and derivatives / racemase and epimerase activity / Isomerases; Racemases and epimerases; Acting on amino acids and derivatives / amino acid catabolic process / peptide metabolic process / magnesium ion binding
Similarity search - Function
Dipeptide epimerase / Mandelate racemase / muconate lactonizing enzyme family signature 2. / Mandelate racemase/muconate lactonizing enzyme, conserved site / Mandelate racemase/muconate lactonizing enzyme, N-terminal domain / Mandelate racemase / muconate lactonizing enzyme, N-terminal domain / Mandelate racemase/muconate lactonizing enzyme, C-terminal / Mandelate racemase / muconate lactonizing enzyme, C-terminal domain / Enolase C-terminal domain-like / Enolase C-terminal domain-like / Enolase-like C-terminal domain ...Dipeptide epimerase / Mandelate racemase / muconate lactonizing enzyme family signature 2. / Mandelate racemase/muconate lactonizing enzyme, conserved site / Mandelate racemase/muconate lactonizing enzyme, N-terminal domain / Mandelate racemase / muconate lactonizing enzyme, N-terminal domain / Mandelate racemase/muconate lactonizing enzyme, C-terminal / Mandelate racemase / muconate lactonizing enzyme, C-terminal domain / Enolase C-terminal domain-like / Enolase C-terminal domain-like / Enolase-like C-terminal domain / Enolase-like, N-terminal domain / Enolase-like, N-terminal / Enolase-like, C-terminal domain superfamily / Enolase-like; domain 1 / TIM Barrel / Alpha-Beta Barrel / 2-Layer Sandwich / Alpha Beta
Similarity search - Domain/homology
Hydrophobic dipeptide epimerase
Similarity search - Component
Biological speciesEnterococcus faecalis V583 (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.7 Å
AuthorsFedorov, A.A. / Fedorov, E.V. / Sakai, A. / Imker, H. / Gerlt, J.A. / Almo, S.C.
CitationJournal: Proc.Natl.Acad.Sci.USA / Year: 2012
Title: Homology models guide discovery of diverse enzyme specificities among dipeptide epimerases in the enolase superfamily.
Authors: Lukk, T. / Sakai, A. / Kalyanaraman, C. / Brown, S.D. / Imker, H.J. / Song, L. / Fedorov, A.A. / Fedorov, E.V. / Toro, R. / Hillerich, B. / Seidel, R. / Patskovsky, Y. / Vetting, M.W. / ...Authors: Lukk, T. / Sakai, A. / Kalyanaraman, C. / Brown, S.D. / Imker, H.J. / Song, L. / Fedorov, A.A. / Fedorov, E.V. / Toro, R. / Hillerich, B. / Seidel, R. / Patskovsky, Y. / Vetting, M.W. / Nair, S.K. / Babbitt, P.C. / Almo, S.C. / Gerlt, J.A. / Jacobson, M.P.
History
DepositionSep 16, 2009Deposition site: RCSB / Processing site: RCSB
Revision 1.0Aug 11, 2010Provider: repository / Type: Initial release
Revision 1.1Jul 13, 2011Group: Version format compliance
Revision 1.2Mar 21, 2012Group: Database references
Revision 1.3May 23, 2012Group: Database references
Revision 1.4Feb 21, 2024Group: Data collection / Database references / Derived calculations
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_struct_conn_angle / struct_conn / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_struct_conn_angle.ptnr1_auth_comp_id / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_asym_id / _pdbx_struct_conn_angle.ptnr1_label_atom_id / _pdbx_struct_conn_angle.ptnr1_label_comp_id / _pdbx_struct_conn_angle.ptnr1_label_seq_id / _pdbx_struct_conn_angle.ptnr3_auth_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_asym_id / _pdbx_struct_conn_angle.ptnr3_label_atom_id / _pdbx_struct_conn_angle.ptnr3_label_comp_id / _pdbx_struct_conn_angle.ptnr3_label_seq_id / _pdbx_struct_conn_angle.value / _struct_conn.pdbx_dist_value / _struct_conn.ptnr1_auth_asym_id / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr2_auth_asym_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_id / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Dipeptide Epimerase
B: Dipeptide Epimerase
C: Dipeptide Epimerase
D: Dipeptide Epimerase
E: Dipeptide Epimerase
F: Dipeptide Epimerase
G: Dipeptide Epimerase
H: Dipeptide Epimerase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)303,90026
Polymers302,7658
Non-polymers1,13518
Water15,997888
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area24760 Å2
ΔGint-210 kcal/mol
Surface area91250 Å2
MethodPISA
Unit cell
Length a, b, c (Å)162.268, 162.268, 319.561
Angle α, β, γ (deg.)90.00, 90.00, 120.00
Int Tables number146
Space group name H-MH3
DetailsThe biological assembly is an octamer

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Components

#1: Protein
Dipeptide Epimerase / Mandelate racemase/muconate lactonizing enzyme family protein


Mass: 37845.629 Da / Num. of mol.: 8
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Enterococcus faecalis V583 (bacteria) / Gene: EF_1511 / Production host: Escherichia coli (E. coli) / References: UniProt: Q834W6
#2: Chemical
ChemComp-GOL / GLYCEROL / GLYCERIN / PROPANE-1,2,3-TRIOL


Mass: 92.094 Da / Num. of mol.: 5 / Source method: obtained synthetically / Formula: C3H8O3
#3: Chemical
ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 8 / Source method: obtained synthetically / Formula: Mg
#4: Chemical
ChemComp-SO4 / SULFATE ION


Mass: 96.063 Da / Num. of mol.: 5 / Source method: obtained synthetically / Formula: SO4
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 888 / 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: 2.67 Å3/Da / Density % sol: 54.01 %
Crystal growMethod: vapor diffusion, hanging drop / pH: 7.5
Details: 2.0M ammonium sulfate, 0.1M Hepes, pH 7.5, VAPOR DIFFUSION, HANGING DROP

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: NSLS / Beamline: X4A / Wavelength: 0.97915 Å
DetectorType: ADSC QUANTUM 4 / Detector: CCD / Date: Feb 3, 2008
RadiationMonochromator: Si 111 CHANNEL / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.97915 Å / Relative weight: 1
ReflectionResolution: 1.7→25 Å / Num. all: 341811 / Num. obs: 341811 / % possible obs: 99.1 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Biso Wilson estimate: 26.2 Å2 / Rmerge(I) obs: 0.094

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Processing

Software
NameVersionClassification
ADSCQuantumdata collection
BALBESphasing
CNS1.1refinement
DENZOdata reduction
SCALEPACKdata scaling
RefinementMethod to determine structure: MOLECULAR REPLACEMENT / Resolution: 1.7→24.93 Å / Rfactor Rfree error: 0.002 / Data cutoff high absF: 2229485.34 / Data cutoff low absF: 0 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0 / σ(I): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.244 17267 5.1 %RANDOM
Rwork0.223 ---
all0.224 341811 --
obs0.223 341811 99.1 %-
Solvent computationSolvent model: FLAT MODEL / Bsol: 48.2226 Å2 / ksol: 0.401739 e/Å3
Displacement parametersBiso mean: 30 Å2
Baniso -1Baniso -2Baniso -3
1-2.27 Å22.41 Å20 Å2
2--2.27 Å20 Å2
3----4.53 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.25 Å0.23 Å
Luzzati d res low-5 Å
Luzzati sigma a0.24 Å0.22 Å
Refinement stepCycle: LAST / Resolution: 1.7→24.93 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms20914 0 63 888 21865
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONc_bond_d0.005
X-RAY DIFFRACTIONc_angle_deg1.2
X-RAY DIFFRACTIONc_dihedral_angle_d22.3
X-RAY DIFFRACTIONc_improper_angle_d0.68
X-RAY DIFFRACTIONc_mcbond_it1.121.5
X-RAY DIFFRACTIONc_mcangle_it1.642
X-RAY DIFFRACTIONc_scbond_it1.952
X-RAY DIFFRACTIONc_scangle_it2.922.5
Refine LS restraints NCSNCS model details: NONE
LS refinement shellResolution: 1.7→1.76 Å / Rfactor Rfree error: 0.009 / Total num. of bins used: 10
RfactorNum. reflection% reflection
Rfree0.353 1634 5.2 %
Rwork0.342 30075 -
obs-30075 91.9 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1protein_rep.paramprotein.top
X-RAY DIFFRACTION2water_rep.paramwater.top
X-RAY DIFFRACTION3ion.paramion.top
X-RAY DIFFRACTION4GOL_xplor_par.txtGOL_xplor_top.txt
X-RAY DIFFRACTION5&_1_PARAMETER_INFILE_5&_1_TOPOLOGY_INFILE_5

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