3C0X	Hydrolase Dna	date	Jan 21, 2008
title	I-Scei In Complex With A Top Nicked Dna Substrate
authors	C.M.Moure, F.S.Gimble, F.A.Quiocho
compound		source
Molecule: Dna (5'- D(Dcdapdcpdgpdcpdtpdapdgpdgpdgpdapdtpdapda)-3 Chain: B Engineered: Yes Other_details: Dna Top Strand B		Synthetic: Yes Other_details: Dna Synthetic Product
Molecule: Dna (5'-D(Pdcpdapdgpdgpdgpdtpdapdapdtpd 3'); Chain: C Engineered: Yes Other_details: Dna Top Strand C		Synthetic: Yes Other_details: Dna Synthetic Product
Molecule: Dna (5'- D(Dgdgpdtpdapdtpdtpdapdcpdcpdcpdtpdgpdtpdtpd Dcpdcpdtpdapdgpdcpdgpdt)-3'); Chain: D Engineered: Yes Other_details: Dna Bottom Strand D		Synthetic: Yes Other_details: Dna Synthetic Product
Molecule: Intron-Encoded Endonuclease I-Scei Chain: A Synonym: 21s Rrna Intron Maturase, Homing Endonuclease Omeg Ec: 3.1.-.- Engineered: Yes		Organism_scientific: Saccharomyces Cerevisiae Organism_common: Baker'S Yeast Organism_taxid: 4932 Gene: Scei, Omega, Secy Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21 De3 Expression_system_vector_type: Pet15
symmetry	Space Group: P 41 21 2	R_factor 0.255 R_Free 0.288
crystal cell	length a length b length c angle alpha angle beta angle gamma 80.680 80.680 128.320 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.30 Å
ligand	CA	enzyme	Hydrolase E.C.3.1 BRENDA
Gene Ontology	Chain Function Process Component A nuclease activity endonuclease activity
Primary reference	Crystal structures of I-SceI complexed to nicked DNA substrates: snapshots of intermediates along the DNA cleavage reaction pathway., Moure CM, Gimble FS, Quiocho FA, Nucleic Acids Res. 2008 Apr 19;. PMID:18424798

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (63 Kb) [Save to disk] Biological Unit Coordinates (3c0x.pdb1.gz) 58 Kb LPC: Ligand-Protein Contacts for 3C0X CSU: Contacts of Structural Units for 3C0X Likely Quarternary Molecular Structure file(s) for 3C0X Structure Factors (220 Kb) Retrieve 3C0X in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3C0X from S2C, [Save to disk] Re-refined 3c0x structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3C0X 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 3C0X

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 3C0X, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3c0x_A] [3c0x_C] [3c0x] [3c0x_B] [3c0x_D] SWISS-PROT database: [P03882] Domain organization of [SCE1_YEAST] by SWISSPFAM

Other resources with information on 3C0X

Community annotation for 3C0X at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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