1N3E	Hydrolase Dna	date	Oct 28, 2002
title	Crystal Structure Of I-Crei Bound To A Palindromic Dna Seque (Palindrome Of Left Side Of Wildtype Dna Target Sequence)
authors	B.Chevalier, M.Turmel, C.Lemieux, R.J.Monnat, B.L.Stoddard
compound		source
Molecule: 5'-D(Cpgpapapapapcpgptpcpgptpapc)-3 Chain: C, E, I, K Engineered: Yes		Synthetic: Yes
Molecule: 5'-D(Pgpapcpgptptptptpcpg)-3' Chain: D, F, J, L Engineered: Yes		Synthetic: Yes
Molecule: Dna Endonuclease I-Crei Chain: A, B, G, H Synonym: 23s Rrna Intron Protein Ec: 3.1.-.- Engineered: Yes		Organism_scientific: Chlamydomonas Reinhardtii Organism_taxid: 3055 Gene: Cr.Lsu Intron Of Choroplast 23s Rdna Gene Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21[De3] Expression_system_vector_type: Plasmid Expression_system_vector: T7 Expression_system_plasmid: Pi-Crei
symmetry	Space Group: P 21 21 21	R_factor 0.219 R_Free 0.245
crystal cell	length a length b length c angle alpha angle beta angle gamma 46.730 68.440 301.490 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.50 Å
ligand	CA, NA	enzyme	Hydrolase E.C.3.1 BRENDA
related structures	by homologous chain: 1U0C, 1U0D
Gene Ontology	Chain Function Process Component H, A, G, B nuclease activity endonuclease activity
Primary reference	Flexible DNA target site recognition by divergent homing endonuclease isoschizomers I-CreI and I-MsoI., Chevalier B, Turmel M, Lemieux C, Monnat RJ Jr, Stoddard BL, J Mol Biol 2003 May 30;329(2):253-69. PMID:12758074

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (149 Kb) [Save to disk] Biological Unit Coordinates (1n3e.pdb1.gz) 72 Kb Biological Unit Coordinates (1n3e.pdb2.gz) 72 Kb LPC: Ligand-Protein Contacts for 1N3E CSU: Contacts of Structural Units for 1N3E Likely Quarternary Molecular Structure file(s) for 1N3E Structure Factors (363 Kb) Retrieve 1N3E in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1N3E from S2C, [Save to disk] Re-refined 1n3e structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1N3E 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 1N3E

Ramachandran plot from PDBSum

Structure-derived information

Electron Density related parameters from EDS Electron Density Server, at Upsala Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1N3E, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1n3ea_, region A [Jmol] [rasmolscript] [script source]     - Domain d1n3eb_, region B [Jmol] [rasmolscript] [script source]     - Domain d1n3eg_, region G [Jmol] [rasmolscript] [script source]     - Domain d1n3eh_, region H [Jmol] [rasmolscript] [script source] Class (fold), Architecture (subfold), Topology, Homologous superfamily from CATH Summaries and structural analyses of PDB data files from PDBSum Identification of Protein Pockets & Cavities at CASTp

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1n3e_K] [1n3e_F] [1n3e_J] [1n3e_L] [1n3e_A] [1n3e_I] [1n3e_B] [1n3e_H] [1n3e_C] [1n3e_D] [1n3e_E] [1n3e_G] [1n3e] SWISS-PROT database: [P05725] Domain organization of [DNE1_CHLRE] by SWISSPFAM

Other resources with information on 1N3E

Community annotation for 1N3E at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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