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- PDB-2jb0: CRYSTAL STRUCTURE OF THE MUTANT H573A OF THE NUCLEASE DOMAIN OF C... -

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Basic information

Entry
Database: PDB / ID: 2jb0
TitleCRYSTAL STRUCTURE OF THE MUTANT H573A OF THE NUCLEASE DOMAIN OF COLE7 IN COMPLEX WITH IM7
Components
  • COLICIN E7
  • COLICIN E7 IMMUNITY PROTEIN
KeywordsHYDROLASE/INHIBITOR / HYDROLASE-INHIBITOR COMPLEX / ZINC / TOXIN / PLASMID / NUCLEASE / HYDROLASE / ANTIBIOTIC / H-N-H MOTIF / BACTERIOCIN / ENDONUCLEASE / METAL-BINDING / ANTIMICROBIAL / DNA HYDROLYSIS / BACTERIOCIN IMMUNITY / HIS METAL FINGER MOTIF
Function / homology
Function and homology information


extrachromosomal circular DNA / bacteriocin immunity / toxic substance binding / endonuclease activity / killing of cells of another organism / Hydrolases; Acting on ester bonds / defense response to bacterium / metal ion binding
Similarity search - Function
Colicin E7 immunity protein; Chain B, fragment: Endonuclease domain / Colicin/pyocin, DNase domain / Colicin E immunity protein / Colicin immunity protein/pyocin immunity protein / Colicin E immunity protein superfamily / Colicin immunity protein / pyocin immunity protein / Colicin/pyocin, DNase domain superfamily / Colicin/Pyocin-S2, DNase domain / Colicin, receptor domain / Coiled-coil receptor-binding R-domain of colicin E2 ...Colicin E7 immunity protein; Chain B, fragment: Endonuclease domain / Colicin/pyocin, DNase domain / Colicin E immunity protein / Colicin immunity protein/pyocin immunity protein / Colicin E immunity protein superfamily / Colicin immunity protein / pyocin immunity protein / Colicin/pyocin, DNase domain superfamily / Colicin/Pyocin-S2, DNase domain / Colicin, receptor domain / Coiled-coil receptor-binding R-domain of colicin E2 / Cloacin colicin family / Colicin-like bacteriocin tRNase domain / Pyosin/cloacin translocation domain / Pyosin/cloacin translocation domain superfamily / HNH nucleases / HNH nuclease / His-Me finger superfamily / Non-ribosomal Peptide Synthetase Peptidyl Carrier Protein; Chain A / Alpha-Beta Complex / Orthogonal Bundle / Mainly Alpha / Alpha Beta
Similarity search - Domain/homology
Colicin-E7 immunity protein / Colicin-E7
Similarity search - Component
Biological speciesESCHERICHIA COLI (E. coli)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.91 Å
AuthorsHuang, H. / Yuan, H.S.
CitationJournal: J.Mol.Biol. / Year: 2007
Title: The Conserved Asparagine in the Hnh Motif Serves an Important Structural Role in Metal Finger Endonucleases.
Authors: Huang, H. / Yuan, H.S.
History
DepositionDec 1, 2006Deposition site: PDBE / Processing site: PDBE
Revision 1.0Apr 3, 2007Provider: repository / Type: Initial release
Revision 1.1May 8, 2011Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Dec 13, 2023Group: Data collection / Database references ...Data collection / Database references / Derived calculations / 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 / 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_database_status.status_code_sf / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_atom_id / _pdbx_struct_conn_angle.ptnr1_label_seq_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_atom_id / _pdbx_struct_conn_angle.ptnr3_label_seq_id / _pdbx_struct_conn_angle.value / _struct_conn.pdbx_dist_value / _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_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_conn.ptnr2_label_seq_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

Downloads & links

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Assembly

Deposited unit
A: COLICIN E7 IMMUNITY PROTEIN
B: COLICIN E7
hetero molecules


Theoretical massNumber of molelcules
Total (without water)24,9673
Polymers24,9022
Non-polymers651
Water3,477193
1
A: COLICIN E7 IMMUNITY PROTEIN
B: COLICIN E7
hetero molecules

A: COLICIN E7 IMMUNITY PROTEIN
B: COLICIN E7
hetero molecules

A: COLICIN E7 IMMUNITY PROTEIN
B: COLICIN E7
hetero molecules

A: COLICIN E7 IMMUNITY PROTEIN
B: COLICIN E7
hetero molecules


Theoretical massNumber of molelcules
Total (without water)99,87012
Polymers99,6088
Non-polymers2624
Water1448
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation4_565x,-y+1,-z1
crystal symmetry operation2_665-x+1,-y+1,z1
crystal symmetry operation3_655-x+1,y,-z1
MethodPQS
Unit cell
Length a, b, c (Å)64.118, 74.367, 119.612
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number23
Space group name H-MI222

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Components

#1: Protein COLICIN E7 IMMUNITY PROTEIN / IMME7 / MICROCIN-E7 IMMUNITY PROTEIN


Mass: 9906.963 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) ESCHERICHIA COLI (E. coli) / Strain: W3110 / Plasmid: PQE70 / Production host: ESCHERICHIA COLI (E. coli) / Strain (production host): M15
References: UniProt: Q03708, Hydrolases; Acting on ester bonds
#2: Protein COLICIN E7


Mass: 14995.036 Da / Num. of mol.: 1 / Fragment: NUCLEASE DOMAIN, RESIDUES 446-576 / Mutation: YES
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) ESCHERICHIA COLI (E. coli) / Strain: W3110 / Plasmid: PQE70 / Production host: ESCHERICHIA COLI (E. coli) / Strain (production host): M15
References: UniProt: Q47112, Hydrolases; Acting on ester bonds
#3: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Zn
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 193 / Source method: isolated from a natural source / Formula: H2O
Compound detailsENGINEERED RESIDUE IN CHAIN B, HIS 573 TO ALA

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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: 2.86 Å3/Da / Density % sol: 57.02 %
Crystal growpH: 7
Details: 20 % W/V PEG3350 AND 0.2 M DI-AMMONIUM HYDROGEN CITRATE, pH 7.00

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Data collection

DiffractionMean temperature: 113 K
Diffraction sourceSource: SYNCHROTRON / Site: SPring-8 / Beamline: BL12B2 / Wavelength: 1
DetectorType: ADSC CCD / Detector: CCD / Date: May 24, 2005 / Details: MIRRORS
RadiationMonochromator: SI / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1 Å / Relative weight: 1
ReflectionResolution: 1.91→25.46 Å / Num. obs: 21837 / % possible obs: 97.4 % / Observed criterion σ(I): 0 / Redundancy: 6.3 % / Biso Wilson estimate: 20.7 Å2 / Rsym value: 0.04 / Net I/σ(I): 39.2
Reflection shellResolution: 1.91→1.98 Å / Redundancy: 3.5 % / Mean I/σ(I) obs: 4.8 / Rsym value: 0.27 / % possible all: 86.1

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Processing

Software
NameVersionClassification
CNS1refinement
HKL-2000data reduction
HKL-2000data scaling
CNSphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 7CEI

7cei


Resolution: 1.91→25.46 Å / Rfactor Rfree error: 0.005 / Data cutoff high absF: 506787.59 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0
RfactorNum. reflection% reflectionSelection details
Rfree0.25 2104 9.9 %RANDOM
Rwork0.21 ---
obs0.21 21332 94.3 %-
Solvent computationSolvent model: FLAT MODEL / Bsol: 53.7618 Å2 / ksol: 0.350635 e/Å3
Displacement parametersBiso mean: 35.1 Å2
Baniso -1Baniso -2Baniso -3
1-2.04 Å20 Å20 Å2
2--3.89 Å20 Å2
3----5.93 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.28 Å0.23 Å
Luzzati d res low-5 Å
Luzzati sigma a0.19 Å0.15 Å
Refinement stepCycle: LAST / Resolution: 1.91→25.46 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1657 0 1 193 1851
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_deg1.1
X-RAY DIFFRACTIONc_angle_deg_na
X-RAY DIFFRACTIONc_angle_deg_prot
X-RAY DIFFRACTIONc_dihedral_angle_d20.7
X-RAY DIFFRACTIONc_dihedral_angle_d_na
X-RAY DIFFRACTIONc_dihedral_angle_d_prot
X-RAY DIFFRACTIONc_improper_angle_d0.8
X-RAY DIFFRACTIONc_improper_angle_d_na
X-RAY DIFFRACTIONc_improper_angle_d_prot
X-RAY DIFFRACTIONc_mcbond_it2.851.5
X-RAY DIFFRACTIONc_mcangle_it3.752
X-RAY DIFFRACTIONc_scbond_it4.582
X-RAY DIFFRACTIONc_scangle_it6.242.5
LS refinement shellResolution: 1.91→2.03 Å / Rfactor Rfree error: 0.016 / Total num. of bins used: 6
RfactorNum. reflection% reflection
Rfree0.267 264 9.3 %
Rwork0.239 2569 -
obs--76.3 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1PROTEIN_REP.PARAMPROTEIN.TOP
X-RAY DIFFRACTION2DNA-RNA_REP.PARAMDNA-RNA.TOP
X-RAY DIFFRACTION3WATER_REP.PARAMWATER.TOP
X-RAY DIFFRACTION4ION.PARAMION.TOP

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