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- PDB-1qq7: STRUCTURE OF L-2-HALOACID DEHALOGENASE FROM XANTHOBACTER AUTOTROP... -

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Basic information

Entry
Database: PDB / ID: 1qq7
TitleSTRUCTURE OF L-2-HALOACID DEHALOGENASE FROM XANTHOBACTER AUTOTROPHICUS WITH CHLOROPROPIONIC ACID COVALENTLY BOUND
ComponentsPROTEIN (L-2-HALOACID DEHALOGENASE)
KeywordsHYDROLASE / L-2-HALOACID DEHALOGENASE
Function / homology
Function and homology information


(S)-2-haloacid dehalogenase / (S)-2-haloacid dehalogenase activity
Similarity search - Function
L-2-Haloacid dehalogenase / Putative phosphatase; domain 2 / Phosphoglycolate phosphatase-like, domain 2 / HAD hydrolase, subfamily IA / haloacid dehalogenase-like hydrolase / HAD superfamily/HAD-like / HAD superfamily / HAD-like superfamily / DNA polymerase; domain 1 / Rossmann fold ...L-2-Haloacid dehalogenase / Putative phosphatase; domain 2 / Phosphoglycolate phosphatase-like, domain 2 / HAD hydrolase, subfamily IA / haloacid dehalogenase-like hydrolase / HAD superfamily/HAD-like / HAD superfamily / HAD-like superfamily / DNA polymerase; domain 1 / Rossmann fold / Orthogonal Bundle / 3-Layer(aba) Sandwich / Mainly Alpha / Alpha Beta
Similarity search - Domain/homology
(S)-2-haloacid dehalogenase
Similarity search - Component
Biological speciesXanthobacter autotrophicus (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / Resolution: 1.7 Å
AuthorsRidder, I.S. / Rozeboom, H.J. / Kalk, K.H. / Dijkstra, B.W.
Citation
Journal: J.Biol.Chem. / Year: 1999
Title: Crystal structures of intermediates in the dehalogenation of haloalkanoates by L-2-haloacid dehalogenase.
Authors: Ridder, I.S. / Rozeboom, H.J. / Kalk, K.H. / Dijkstra, B.W.
#1: Journal: J.Biol.Chem. / Year: 1997
Title: Three-Dimensional Structure of L-2-Haloacid Dehalogenase from Xanthobacter Autotrophicus Gj10 Complexed with the Substrate-Analogue Formate
Authors: Ridder, I.S. / Rozeboom, H.J. / Kalk, K.H. / Janssen, D.B. / Dijkstra, B.W.
#2: Journal: Protein Sci. / Year: 1995
Title: Crystallization and Preliminary X-Ray Analysis of L-2-Haloacid Dehalogenase from Xanthobacter Autotrophicus Gj10
Authors: Ridder, I.S. / Rozeboom, H.J. / Kingma, J. / Janssen, D.B. / Dijkstra, B.W.
History
DepositionJun 11, 1999Deposition site: RCSB / Processing site: RCSB
Revision 1.0Oct 25, 1999Provider: repository / Type: Initial release
Revision 1.1Apr 27, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Aug 16, 2023Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / diffrn_source / pdbx_initial_refinement_model / struct_conn / struct_ref_seq_dif / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _diffrn_source.pdbx_synchrotron_site / _struct_conn.pdbx_leaving_atom_flag / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.4Nov 15, 2023Group: Data collection / Category: chem_comp_atom / chem_comp_bond / Item: _chem_comp_atom.atom_id / _chem_comp_bond.atom_id_2

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: PROTEIN (L-2-HALOACID DEHALOGENASE)
B: PROTEIN (L-2-HALOACID DEHALOGENASE)
hetero molecules


Theoretical massNumber of molelcules
Total (without water)55,2364
Polymers55,1652
Non-polymers712
Water11,710650
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area4560 Å2
ΔGint-62 kcal/mol
Surface area17860 Å2
MethodPISA
Unit cell
Length a, b, c (Å)56.751, 83.833, 90.809
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 PROTEIN (L-2-HALOACID DEHALOGENASE)


Mass: 27582.436 Da / Num. of mol.: 2 / Source method: isolated from a natural source
Details: 2-CHLOROPROPIONIC ACID MOIETY COVALENTLY BOUND TO ASP 8 IN ACTIVE SITES OF BOTH CHAINS
Source: (natural) Xanthobacter autotrophicus (bacteria) / Strain: GJ10 / References: UniProt: Q60099, (S)-2-haloacid dehalogenase
#2: Chemical ChemComp-CL / CHLORIDE ION / Chloride


Mass: 35.453 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Cl
#3: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 650 / 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 Å3/Da / Density % sol: 38 %
Crystal growpH: 7 / Details: pH 7.00
Crystal grow
*PLUS
Method: vapor diffusion, hanging drop
Details: seeding, Ridder, I.S., (1995) Protein Sci., 4, 2619.
PH range low: 7 / PH range high: 6.8
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-ID
12.5 mg/mlprotein1drop
215 %PEG80001drop
3200 mMsodium formate1drop
4100 mMbis-Tris1drop
520 %PEG80001reservoir
6200 mMsodium formate1reservoir
7100 mMbis-Tris1reservoir

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: EMBL/DESY, HAMBURG / Beamline: X11 / Wavelength: 1
DetectorType: MARRESEARCH / Detector: IMAGE PLATE / Date: Jul 12, 1997
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1 Å / Relative weight: 1
ReflectionResolution: 1.7→99 Å / Num. obs: 47721 / % possible obs: 99 % / Observed criterion σ(I): -3 / Redundancy: 4.2 % / Biso Wilson estimate: 19.6 Å2 / Rmerge(I) obs: 0.038 / Net I/σ(I): 24.1
Reflection shellResolution: 1.7→1.73 Å / Redundancy: 3.6 % / Rmerge(I) obs: 0.145 / % possible all: 84.1
Reflection
*PLUS
Num. measured all: 202654
Reflection shell
*PLUS
% possible obs: 84.1 % / Mean I/σ(I) obs: 7

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Processing

Software
NameClassification
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
CNSphasing
RefinementStarting model: 1QQY

1qqy


Resolution: 1.7→20 Å / Rfactor Rfree error: 0.005 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0
Stereochemistry target values: ENGH & HUBER CNS FORCE CONSTANT ON OMEGA DIHEDRAL ANGLE SET TO 20 % OF ORIGINAL VALUE
RfactorNum. reflection% reflectionSelection details
Rfree0.199 2412 5 %RANDOM
Rwork0.176 ---
obs0.176 47709 98.6 %-
Solvent computationSolvent model: FLAT MODEL / Bsol: 75.08 Å2 / ksol: 0.39 e/Å3
Displacement parametersBiso mean: 23.7 Å2
Baniso -1Baniso -2Baniso -3
1-0.17 Å20 Å20 Å2
2--1.09 Å20 Å2
3----1.26 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.2 Å0.17 Å
Luzzati d res low-5 Å
Luzzati sigma a0.13 Å0.09 Å
Refinement stepCycle: LAST / Resolution: 1.7→20 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms4008 0 2 655 4665
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONc_bond_d0.006
X-RAY DIFFRACTIONc_bond_d_na
X-RAY DIFFRACTIONc_bond_d_prot
X-RAY DIFFRACTIONc_angle_d
X-RAY DIFFRACTIONc_angle_d_na
X-RAY DIFFRACTIONc_angle_d_prot
X-RAY DIFFRACTIONc_angle_deg1
X-RAY DIFFRACTIONc_angle_deg_na
X-RAY DIFFRACTIONc_angle_deg_prot
X-RAY DIFFRACTIONc_dihedral_angle_d21.5
X-RAY DIFFRACTIONc_dihedral_angle_d_na
X-RAY DIFFRACTIONc_dihedral_angle_d_prot
X-RAY DIFFRACTIONc_improper_angle_d0.77
X-RAY DIFFRACTIONc_improper_angle_d_na
X-RAY DIFFRACTIONc_improper_angle_d_prot
X-RAY DIFFRACTIONc_mcbond_it1.091.5
X-RAY DIFFRACTIONc_mcangle_it1.812
X-RAY DIFFRACTIONc_scbond_it1.852
X-RAY DIFFRACTIONc_scangle_it2.822.5
LS refinement shellResolution: 1.7→1.76 Å / Rfactor Rfree error: 0.02 / Total num. of bins used: 10
RfactorNum. reflection% reflection
Rfree0.262 222 5 %
Rwork0.216 1760 -
obs--92.6 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1PROTEIN_REP_1999.PARAMPROTEIN_1999.TOP
X-RAY DIFFRACTION2WATER_REP.PARA
X-RAY DIFFRACTION3CCP_ADJ.PAR
X-RAY DIFFRACTION4ION.PARAM
Software
*PLUS
Name: CNS / Version: 0.5 / Classification: refinement
Refine LS restraints
*PLUS
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_dihedral_angle_d
X-RAY DIFFRACTIONc_dihedral_angle_deg21.5
X-RAY DIFFRACTIONc_improper_angle_d
X-RAY DIFFRACTIONc_improper_angle_deg0.77

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