1FZR	Hydrolase	date	Oct 04, 2000
title	Crystal Structure Of Bacteriophage T7 Endonuclease I
authors	J.M.Hadden, M.A.Convery, A.C.Declais, D.M.J.Lilley, S.E.V.Philli
compound		source
Molecule: Endonuclease I Chain: A, B, C, D Fragment: Residues 12-149 Synonym: Endodeoxyribonuclease I Ec: 3.1.21.2 Engineered: Yes Mutation: Yes		Organism_scientific: Enterobacteria Phage T7 Organism_taxid: 10760 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_plasmid: Pet19b
symmetry	Space Group: P 21 21 2	R_factor 0.198 R_Free 0.235
crystal cell	length a length b length c angle alpha angle beta angle gamma 123.660 135.190 61.580 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.10 Å
ligand		enzyme	Hydrolase E.C.3.1.21.2 BRENDA
related structures	by homologous chain: 1M0D, 1M0I
Gene Ontology	Chain Function Process Component A, D, C, B nuclease activity endonuclease activity
Primary reference	Crystal structure of the Holliday junction resolving enzyme T7 endonuclease I., Hadden JM, Convery MA, Declais AC, Lilley DM, Phillips SE, Nat Struct Biol 2001 Jan;8(1):62-7. PMID:11135673

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (99 Kb) [Save to disk] Biological Unit Coordinates (1fzr.pdb1.gz) 48 Kb Biological Unit Coordinates (1fzr.pdb2.gz) 47 Kb CSU: Contacts of Structural Units for 1FZR Likely Quarternary Molecular Structure file(s) for 1FZR Structure Factors (684 Kb) Retrieve 1FZR in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1FZR from S2C, [Save to disk] Re-refined 1fzr structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1FZR in 3D

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Visual 3D analysis of 1FZR

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 1FZR, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1fzra_, region A [Jmol] [rasmolscript] [script source]     - Domain d1fzrb_, region B [Jmol] [rasmolscript] [script source]     - Domain d1fzrc_, region C [Jmol] [rasmolscript] [script source]     - Domain d1fzrd_, region D [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: [1fzr_C] [1fzr_B] [1fzr_D] [1fzr] [1fzr_A] SWISS-PROT database: [P00641] Domain organization of [ENRN_BPT7] by SWISSPFAM

Other resources with information on 1FZR

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

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