4AQX Hydrolase date Apr 19, 2012
title Crystal Structure Of I-Crei Complexed With Its Target Methylated At Position Plus 2 (In The B Strand) In The Presence Of Magnesium
authors J.Valton, F.Daboussi, S.Leduc, P.Redondo, R.Macmaster, R.Molina, G P.Duchateau
compound source
Molecule: Dna Endonuclease I-Crei
Chain: A, B
Fragment: Residues 2-153
Synonym: I-Crei, 23s Rrna Intron Protein
Ec: 3.1.-.-
Engineered: Yes
Organism_scientific: Chlamydomonas Reinhardtii
Organism_taxid: 3055
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_vector_type: Plasmid
Expression_system_vector: Cdfduet1

Molecule: 5'-D(Tpcpapapapapcpgptpcpgptpgpap)-
Chain: C

Synthetic: Yes
Organism_scientific: Synthetic Construct
Organism_taxid: 32630

Molecule: 5'-D(Gpapcpapgptptptpgpgp)-3'
Chain: D

Synthetic: Yes
Organism_scientific: Synthetic Construct
Organism_taxid: 32630

Molecule: 5'-D(Cpcpapapapcptpgptpcptpcpap5cm)
Chain: E

Synthetic: Yes
Organism_scientific: Synthetic Construct
Organism_taxid: 32630

Molecule: 5'-D(Gpapcpgptptptptpgpap)-3'
Chain: F

Synthetic: Yes
Organism_scientific: Synthetic Construct
Organism_taxid: 32630
symmetry Space Group: P 2 21 21
R_factor 0.2015 R_Free 0.2418
length a length b length c angle alpha angle beta angle gamma
45.839 71.401 179.054 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.20 Å
ligand 5CM, GOL, MG enzyme Hydrolase E.C.3.1 BRENDA
A, B
  • nuclease activity
  • endonuclease activity

  • Primary reference5'-Cytosine-phosphoguanine (CpG) methylation impacts the activity of natural and engineered meganucleases., Valton J, Daboussi F, Leduc S, Molina R, Redondo P, Macmaster R, Montoya G, Duchateau P, J Biol Chem. 2012 Aug 31;287(36):30139-50. Epub 2012 Jun 27. PMID:22740697
    Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (162 Kb) [Save to disk]
  • Biological Unit Coordinates (4aqx.pdb1.gz) 155 Kb
  • LPC: Ligand-Protein Contacts for 4AQX
  • CSU: Contacts of Structural Units for 4AQX
  • Structure Factors (618 Kb)
  • Retrieve 4AQX in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 4AQX from S2C, [Save to disk]
  • Re-refined 4aqx structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 4AQX in 3D
  • Proteopedia, because life has more than 2D.
  • On Jmol, a nice Rasmol like molecule viewer. This is good for easiest viewing of basic structure.
  • On FirstGlance, an excellent tool for a guided tour on the structure components, by E. Martz.
  • Visual 3D analysis of 4AQX
  • Cartoon representation from PDB Cartoon
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Dipole moment, from Dipole Server at Weizmann Institute
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 4AQX, from MSDmotif at EBI
  • Fold representative 4aqx from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [4aqx_A] [4aqx_C] [4aqx] [4aqx_B] [4aqx_D] [4aqx_F] [4aqx_E]
  • SWISS-PROT database:
  • Domain organization of by SWISSPFAM
  • Other resources with information on 4AQX
  • Community annotation for 4AQX at PDBWiki (http://pdbwiki.org)
  • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

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